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3 years agoMakefile: Move -Wno-unused-but-set-variable out of GCC only block
Nathan Chancellor [Thu, 29 Apr 2021 01:23:50 +0000 (18:23 -0700)]
Makefile: Move -Wno-unused-but-set-variable out of GCC only block

BugLink: https://bugs.launchpad.net/bugs/1928825
commit 885480b084696331bea61a4f7eba10652999a9c1 upstream.

Currently, -Wunused-but-set-variable is only supported by GCC so it is
disabled unconditionally in a GCC only block (it is enabled with W=1).
clang currently has its implementation for this warning in review so
preemptively move this statement out of the GCC only block and wrap it
with cc-disable-warning so that both compilers function the same.

Cc: stable@vger.kernel.org
Link: https://reviews.llvm.org/D100581
Signed-off-by: Nathan Chancellor <nathan@kernel.org>
Reviewed-by: Nick Desaulniers <ndesaulniers@google.com>
Tested-by: Nick Desaulniers <ndesaulniers@google.com>
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Kamal Mostafa <kamal@canonical.com>
Signed-off-by: Stefan Bader <stefan.bader@canonical.com>
3 years agoarm64/vdso: Discard .note.gnu.property sections in vDSO
Bill Wendling [Fri, 23 Apr 2021 20:51:59 +0000 (13:51 -0700)]
arm64/vdso: Discard .note.gnu.property sections in vDSO

BugLink: https://bugs.launchpad.net/bugs/1928825
[ Upstream commit 388708028e6937f3fc5fc19aeeb847f8970f489c ]

The arm64 assembler in binutils 2.32 and above generates a program
property note in a note section, .note.gnu.property, to encode used x86
ISAs and features. But the kernel linker script only contains a single
NOTE segment:

  PHDRS
  {
    text    PT_LOAD    FLAGS(5) FILEHDR PHDRS; /* PF_R|PF_X */
    dynamic PT_DYNAMIC FLAGS(4);               /* PF_R */
    note    PT_NOTE    FLAGS(4);               /* PF_R */
  }

The NOTE segment generated by the vDSO linker script is aligned to 4 bytes.
But the .note.gnu.property section must be aligned to 8 bytes on arm64.

  $ readelf -n vdso64.so

  Displaying notes found in: .note
    Owner                Data size      Description
    Linux                0x00000004     Unknown note type: (0x00000000)
     description data: 06 00 00 00
  readelf: Warning: note with invalid namesz and/or descsz found at offset 0x20
  readelf: Warning:  type: 0x78, namesize: 0x00000100, descsize: 0x756e694c, alignment: 8

Since the note.gnu.property section in the vDSO is not checked by the
dynamic linker, discard the .note.gnu.property sections in the vDSO.

Similar to commit 4caffe6a28d31 ("x86/vdso: Discard .note.gnu.property
sections in vDSO"), but for arm64.

Signed-off-by: Bill Wendling <morbo@google.com>
Reviewed-by: Kees Cook <keescook@chromium.org>
Acked-by: Ard Biesheuvel <ardb@kernel.org>
Link: https://lore.kernel.org/r/20210423205159.830854-1-morbo@google.com
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: Kamal Mostafa <kamal@canonical.com>
Signed-off-by: Stefan Bader <stefan.bader@canonical.com>
3 years agobtrfs: fix race when picking most recent mod log operation for an old root
Filipe Manana [Tue, 20 Apr 2021 09:55:44 +0000 (10:55 +0100)]
btrfs: fix race when picking most recent mod log operation for an old root

BugLink: https://bugs.launchpad.net/bugs/1928825
[ Upstream commit f9690f426b2134cc3e74bfc5d9dfd6a4b2ca5281 ]

Commit dbcc7d57bffc0c ("btrfs: fix race when cloning extent buffer during
rewind of an old root"), fixed a race when we need to rewind the extent
buffer of an old root. It was caused by picking a new mod log operation
for the extent buffer while getting a cloned extent buffer with an outdated
number of items (off by -1), because we cloned the extent buffer without
locking it first.

However there is still another similar race, but in the opposite direction.
The cloned extent buffer has a number of items that does not match the
number of tree mod log operations that are going to be replayed. This is
because right after we got the last (most recent) tree mod log operation to
replay and before locking and cloning the extent buffer, another task adds
a new pointer to the extent buffer, which results in adding a new tree mod
log operation and incrementing the number of items in the extent buffer.
So after cloning we have mismatch between the number of items in the extent
buffer and the number of mod log operations we are going to apply to it.
This results in hitting a BUG_ON() that produces the following stack trace:

   ------------[ cut here ]------------
   kernel BUG at fs/btrfs/tree-mod-log.c:675!
   invalid opcode: 0000 [#1] SMP KASAN PTI
   CPU: 3 PID: 4811 Comm: crawl_1215 Tainted: G        W         5.12.0-7d1efdf501f8-misc-next+ #99
   Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014
   RIP: 0010:tree_mod_log_rewind+0x3b1/0x3c0
   Code: 05 48 8d 74 10 (...)
   RSP: 0018:ffffc90001027090 EFLAGS: 00010293
   RAX: 0000000000000000 RBX: ffff8880a8514600 RCX: ffffffffaa9e59b6
   RDX: 0000000000000007 RSI: dffffc0000000000 RDI: ffff8880a851462c
   RBP: ffffc900010270e0 R08: 00000000000000c0 R09: ffffed1004333417
   R10: ffff88802199a0b7 R11: ffffed1004333416 R12: 000000000000000e
   R13: ffff888135af8748 R14: ffff88818766ff00 R15: ffff8880a851462c
   FS:  00007f29acf62700(0000) GS:ffff8881f2200000(0000) knlGS:0000000000000000
   CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
   CR2: 00007f0e6013f718 CR3: 000000010d42e003 CR4: 0000000000170ee0
   Call Trace:
    btrfs_get_old_root+0x16a/0x5c0
    ? lock_downgrade+0x400/0x400
    btrfs_search_old_slot+0x192/0x520
    ? btrfs_search_slot+0x1090/0x1090
    ? free_extent_buffer.part.61+0xd7/0x140
    ? free_extent_buffer+0x13/0x20
    resolve_indirect_refs+0x3e9/0xfc0
    ? lock_downgrade+0x400/0x400
    ? __kasan_check_read+0x11/0x20
    ? add_prelim_ref.part.11+0x150/0x150
    ? lock_downgrade+0x400/0x400
    ? __kasan_check_read+0x11/0x20
    ? lock_acquired+0xbb/0x620
    ? __kasan_check_write+0x14/0x20
    ? do_raw_spin_unlock+0xa8/0x140
    ? rb_insert_color+0x340/0x360
    ? prelim_ref_insert+0x12d/0x430
    find_parent_nodes+0x5c3/0x1830
    ? stack_trace_save+0x87/0xb0
    ? resolve_indirect_refs+0xfc0/0xfc0
    ? fs_reclaim_acquire+0x67/0xf0
    ? __kasan_check_read+0x11/0x20
    ? lockdep_hardirqs_on_prepare+0x210/0x210
    ? fs_reclaim_acquire+0x67/0xf0
    ? __kasan_check_read+0x11/0x20
    ? ___might_sleep+0x10f/0x1e0
    ? __kasan_kmalloc+0x9d/0xd0
    ? trace_hardirqs_on+0x55/0x120
    btrfs_find_all_roots_safe+0x142/0x1e0
    ? find_parent_nodes+0x1830/0x1830
    ? trace_hardirqs_on+0x55/0x120
    ? ulist_free+0x1f/0x30
    ? btrfs_inode_flags_to_xflags+0x50/0x50
    iterate_extent_inodes+0x20e/0x580
    ? tree_backref_for_extent+0x230/0x230
    ? release_extent_buffer+0x225/0x280
    ? read_extent_buffer+0xdd/0x110
    ? lock_downgrade+0x400/0x400
    ? __kasan_check_read+0x11/0x20
    ? lock_acquired+0xbb/0x620
    ? __kasan_check_write+0x14/0x20
    ? do_raw_spin_unlock+0xa8/0x140
    ? _raw_spin_unlock+0x22/0x30
    ? release_extent_buffer+0x225/0x280
    iterate_inodes_from_logical+0x129/0x170
    ? iterate_inodes_from_logical+0x129/0x170
    ? btrfs_inode_flags_to_xflags+0x50/0x50
    ? iterate_extent_inodes+0x580/0x580
    ? __vmalloc_node+0x92/0xb0
    ? init_data_container+0x34/0xb0
    ? init_data_container+0x34/0xb0
    ? kvmalloc_node+0x60/0x80
    btrfs_ioctl_logical_to_ino+0x158/0x230
    btrfs_ioctl+0x2038/0x4360
    ? __kasan_check_write+0x14/0x20
    ? mmput+0x3b/0x220
    ? btrfs_ioctl_get_supported_features+0x30/0x30
    ? __kasan_check_read+0x11/0x20
    ? __kasan_check_read+0x11/0x20
    ? lock_release+0xc8/0x650
    ? __might_fault+0x64/0xd0
    ? __kasan_check_read+0x11/0x20
    ? lock_downgrade+0x400/0x400
    ? lockdep_hardirqs_on_prepare+0x210/0x210
    ? lockdep_hardirqs_on_prepare+0x13/0x210
    ? _raw_spin_unlock_irqrestore+0x51/0x63
    ? __kasan_check_read+0x11/0x20
    ? do_vfs_ioctl+0xfc/0x9d0
    ? ioctl_file_clone+0xe0/0xe0
    ? lock_downgrade+0x400/0x400
    ? lockdep_hardirqs_on_prepare+0x210/0x210
    ? __kasan_check_read+0x11/0x20
    ? lock_release+0xc8/0x650
    ? __task_pid_nr_ns+0xd3/0x250
    ? __kasan_check_read+0x11/0x20
    ? __fget_files+0x160/0x230
    ? __fget_light+0xf2/0x110
    __x64_sys_ioctl+0xc3/0x100
    do_syscall_64+0x37/0x80
    entry_SYSCALL_64_after_hwframe+0x44/0xae
   RIP: 0033:0x7f29ae85b427
   Code: 00 00 90 48 8b (...)
   RSP: 002b:00007f29acf5fcf8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
   RAX: ffffffffffffffda RBX: 00007f29acf5ff40 RCX: 00007f29ae85b427
   RDX: 00007f29acf5ff48 RSI: 00000000c038943b RDI: 0000000000000003
   RBP: 0000000001000000 R08: 0000000000000000 R09: 00007f29acf60120
   R10: 00005640d5fc7b00 R11: 0000000000000246 R12: 0000000000000003
   R13: 00007f29acf5ff48 R14: 00007f29acf5ff40 R15: 00007f29acf5fef8
   Modules linked in:
   ---[ end trace 85e5fce078dfbe04 ]---

  (gdb) l *(tree_mod_log_rewind+0x3b1)
  0xffffffff819e5b21 is in tree_mod_log_rewind (fs/btrfs/tree-mod-log.c:675).
  670                      * the modification. As we're going backwards, we do the
  671                      * opposite of each operation here.
  672                      */
  673                     switch (tm->op) {
  674                     case BTRFS_MOD_LOG_KEY_REMOVE_WHILE_FREEING:
  675                             BUG_ON(tm->slot < n);
  676                             fallthrough;
  677                     case BTRFS_MOD_LOG_KEY_REMOVE_WHILE_MOVING:
  678                     case BTRFS_MOD_LOG_KEY_REMOVE:
  679                             btrfs_set_node_key(eb, &tm->key, tm->slot);
  (gdb) quit

The following steps explain in more detail how it happens:

1) We have one tree mod log user (through fiemap or the logical ino ioctl),
   with a sequence number of 1, so we have fs_info->tree_mod_seq == 1.
   This is task A;

2) Another task is at ctree.c:balance_level() and we have eb X currently as
   the root of the tree, and we promote its single child, eb Y, as the new
   root.

   Then, at ctree.c:balance_level(), we call:

      ret = btrfs_tree_mod_log_insert_root(root->node, child, true);

3) At btrfs_tree_mod_log_insert_root() we create a tree mod log operation
   of type BTRFS_MOD_LOG_KEY_REMOVE_WHILE_FREEING, with a ->logical field
   pointing to ebX->start. We only have one item in eb X, so we create
   only one tree mod log operation, and store in the "tm_list" array;

4) Then, still at btrfs_tree_mod_log_insert_root(), we create a tree mod
   log element of operation type BTRFS_MOD_LOG_ROOT_REPLACE, ->logical set
   to ebY->start, ->old_root.logical set to ebX->start, ->old_root.level
   set to the level of eb X and ->generation set to the generation of eb X;

5) Then btrfs_tree_mod_log_insert_root() calls tree_mod_log_free_eb() with
   "tm_list" as argument. After that, tree_mod_log_free_eb() calls
   tree_mod_log_insert(). This inserts the mod log operation of type
   BTRFS_MOD_LOG_KEY_REMOVE_WHILE_FREEING from step 3 into the rbtree
   with a sequence number of 2 (and fs_info->tree_mod_seq set to 2);

6) Then, after inserting the "tm_list" single element into the tree mod
   log rbtree, the BTRFS_MOD_LOG_ROOT_REPLACE element is inserted, which
   gets the sequence number 3 (and fs_info->tree_mod_seq set to 3);

7) Back to ctree.c:balance_level(), we free eb X by calling
   btrfs_free_tree_block() on it. Because eb X was created in the current
   transaction, has no other references and writeback did not happen for
   it, we add it back to the free space cache/tree;

8) Later some other task B allocates the metadata extent from eb X, since
   it is marked as free space in the space cache/tree, and uses it as a
   node for some other btree;

9) The tree mod log user task calls btrfs_search_old_slot(), which calls
   btrfs_get_old_root(), and finally that calls tree_mod_log_oldest_root()
   with time_seq == 1 and eb_root == eb Y;

10) The first iteration of the while loop finds the tree mod log element
    with sequence number 3, for the logical address of eb Y and of type
    BTRFS_MOD_LOG_ROOT_REPLACE;

11) Because the operation type is BTRFS_MOD_LOG_ROOT_REPLACE, we don't
    break out of the loop, and set root_logical to point to
    tm->old_root.logical, which corresponds to the logical address of
    eb X;

12) On the next iteration of the while loop, the call to
    tree_mod_log_search_oldest() returns the smallest tree mod log element
    for the logical address of eb X, which has a sequence number of 2, an
    operation type of BTRFS_MOD_LOG_KEY_REMOVE_WHILE_FREEING and
    corresponds to the old slot 0 of eb X (eb X had only 1 item in it
    before being freed at step 7);

13) We then break out of the while loop and return the tree mod log
    operation of type BTRFS_MOD_LOG_ROOT_REPLACE (eb Y), and not the one
    for slot 0 of eb X, to btrfs_get_old_root();

14) At btrfs_get_old_root(), we process the BTRFS_MOD_LOG_ROOT_REPLACE
    operation and set "logical" to the logical address of eb X, which was
    the old root. We then call tree_mod_log_search() passing it the logical
    address of eb X and time_seq == 1;

15) But before calling tree_mod_log_search(), task B locks eb X, adds a
    key to eb X, which results in adding a tree mod log operation of type
    BTRFS_MOD_LOG_KEY_ADD, with a sequence number of 4, to the tree mod
    log, and increments the number of items in eb X from 0 to 1.
    Now fs_info->tree_mod_seq has a value of 4;

16) Task A then calls tree_mod_log_search(), which returns the most recent
    tree mod log operation for eb X, which is the one just added by task B
    at the previous step, with a sequence number of 4, a type of
    BTRFS_MOD_LOG_KEY_ADD and for slot 0;

17) Before task A locks and clones eb X, task A adds another key to eb X,
    which results in adding a new BTRFS_MOD_LOG_KEY_ADD mod log operation,
    with a sequence number of 5, for slot 1 of eb X, increments the
    number of items in eb X from 1 to 2, and unlocks eb X.
    Now fs_info->tree_mod_seq has a value of 5;

18) Task A then locks eb X and clones it. The clone has a value of 2 for
    the number of items and the pointer "tm" points to the tree mod log
    operation with sequence number 4, not the most recent one with a
    sequence number of 5, so there is mismatch between the number of
    mod log operations that are going to be applied to the cloned version
    of eb X and the number of items in the clone;

19) Task A then calls tree_mod_log_rewind() with the clone of eb X, the
    tree mod log operation with sequence number 4 and a type of
    BTRFS_MOD_LOG_KEY_ADD, and time_seq == 1;

20) At tree_mod_log_rewind(), we set the local variable "n" with a value
    of 2, which is the number of items in the clone of eb X.

    Then in the first iteration of the while loop, we process the mod log
    operation with sequence number 4, which is targeted at slot 0 and has
    a type of BTRFS_MOD_LOG_KEY_ADD. This results in decrementing "n" from
    2 to 1.

    Then we pick the next tree mod log operation for eb X, which is the
    tree mod log operation with a sequence number of 2, a type of
    BTRFS_MOD_LOG_KEY_REMOVE_WHILE_FREEING and for slot 0, it is the one
    added in step 5 to the tree mod log tree.

    We go back to the top of the loop to process this mod log operation,
    and because its slot is 0 and "n" has a value of 1, we hit the BUG_ON:

        (...)
        switch (tm->op) {
        case BTRFS_MOD_LOG_KEY_REMOVE_WHILE_FREEING:
                BUG_ON(tm->slot < n);
                fallthrough;
(...)

Fix this by checking for a more recent tree mod log operation after locking
and cloning the extent buffer of the old root node, and use it as the first
operation to apply to the cloned extent buffer when rewinding it.

Stable backport notes: due to moved code and renames, in =< 5.11 the
change should be applied to ctree.c:get_old_root.

Reported-by: Zygo Blaxell <ce3g8jdj@umail.furryterror.org>
Link: https://lore.kernel.org/linux-btrfs/20210404040732.GZ32440@hungrycats.org/
Fixes: 834328a8493079 ("Btrfs: tree mod log's old roots could still be part of the tree")
CC: stable@vger.kernel.org # 4.4+
Signed-off-by: Filipe Manana <fdmanana@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: Kamal Mostafa <kamal@canonical.com>
Signed-off-by: Stefan Bader <stefan.bader@canonical.com>
3 years agoALSA: hda/realtek: Add quirk for Intel Clevo PCx0Dx
Eckhart Mohr [Tue, 27 Apr 2021 15:30:25 +0000 (17:30 +0200)]
ALSA: hda/realtek: Add quirk for Intel Clevo PCx0Dx

BugLink: https://bugs.launchpad.net/bugs/1928825
commit 970e3012c04c96351c413f193a9c909e6d871ce2 upstream.

This applies a SND_PCI_QUIRK(...) to the Clevo PCx0Dx barebones. This
fix enables audio output over the headset jack and ensures that a
microphone connected via the headset combo jack is correctly recognized
when pluged in.

[ Rearranged the list entries in a sorted order -- tiwai ]

Signed-off-by: Eckhart Mohr <e.mohr@tuxedocomputers.com>
Co-developed-by: Werner Sembach <wse@tuxedocomputers.com>
Signed-off-by: Werner Sembach <wse@tuxedocomputers.com>
Cc: <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20210427153025.451118-1-wse@tuxedocomputers.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Kamal Mostafa <kamal@canonical.com>
Signed-off-by: Stefan Bader <stefan.bader@canonical.com>
3 years agoALSA: hda/realtek: fix static noise on ALC285 Lenovo laptops
Sami Loone [Sun, 25 Apr 2021 20:37:12 +0000 (22:37 +0200)]
ALSA: hda/realtek: fix static noise on ALC285 Lenovo laptops

BugLink: https://bugs.launchpad.net/bugs/1928825
commit 9bbb94e57df135ef61bef075d9c99b8d9e89e246 upstream.

Remove a duplicate vendor+subvendor pin fixup entry as one is masking
the other and making it unreachable. Consider the more specific newcomer
as a second chance instead.

The generic entry is made less strict to also match for laptops with
slightly different 0x12 pin configuration. Tested on Lenovo Yoga 6 (AMD)
where 0x12 is 0x40000000.

Fixes: 607184cb1635 ("ALSA: hda/realtek - Add supported for more Lenovo ALC285 Headset Button")
Signed-off-by: Sami Loone <sami@loone.fi>
Cc: <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/YIXS+GT/dGI/LtK6@yoga
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Kamal Mostafa <kamal@canonical.com>
Signed-off-by: Stefan Bader <stefan.bader@canonical.com>
3 years agoALSA: hda/realtek: fix mic boost on Intel NUC 8
Phil Calvin [Thu, 15 Apr 2021 22:01:29 +0000 (18:01 -0400)]
ALSA: hda/realtek: fix mic boost on Intel NUC 8

BugLink: https://bugs.launchpad.net/bugs/1928825
commit d1ee66c5d3c5a0498dd5e3f2af5b8c219a98bba5 upstream.

Fix two bugs with the Intel HDA Realtek ALC233 sound codec
present in Intel NUC NUC8i7BEH and probably a few other similar
NUC models.

These codecs advertise a 4-level microphone input boost amplifier on
pin 0x19, but the highest two boost settings do not work correctly,
and produce only low analog noise that does not seem to contain any
discernible signal. There is an existing fixup for this exact problem
but for a different PCI subsystem ID, so we re-use that logic.

Changing the boost level also triggers a DC spike in the input signal
that bleeds off over about a second and overwhelms any input during
that time. Thankfully, the existing fixup has the side effect of
making the boost control show up in userspace as a mute/unmute switch,
and this keeps (e.g.) PulseAudio from fiddling with it during normal
input volume adjustments.

Finally, the NUC hardware has built-in inverted stereo mics. This
patch also enables the usual fixup for this so the two channels cancel
noise instead of the actual signal.

[ Re-ordered the quirk entry point by tiwai ]

Signed-off-by: Phil Calvin <phil@philcalvin.com>
Cc: <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/80dc5663-7734-e7e5-25ef-15b5df24511a@philcalvin.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Kamal Mostafa <kamal@canonical.com>
Signed-off-by: Stefan Bader <stefan.bader@canonical.com>
3 years agoALSA: hda/realtek: GA503 use same quirks as GA401
Luke D Jones [Mon, 19 Apr 2021 03:04:11 +0000 (15:04 +1200)]
ALSA: hda/realtek: GA503 use same quirks as GA401

BugLink: https://bugs.launchpad.net/bugs/1928825
commit 76fae6185f5456865ff1bcb647709d44fd987eb6 upstream.

The GA503 has almost exactly the same default setup as the GA401
model with the same issues. The GA401 quirks solve all the issues
so we will use the full quirk chain.

Signed-off-by: Luke D Jones <luke@ljones.dev>
Cc: <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20210419030411.28304-1-luke@ljones.dev
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Kamal Mostafa <kamal@canonical.com>
Signed-off-by: Stefan Bader <stefan.bader@canonical.com>
3 years agoALSA: usb-audio: Add dB range mapping for Sennheiser Communications Headset PC 8
Timo Gurr [Mon, 3 May 2021 11:08:22 +0000 (13:08 +0200)]
ALSA: usb-audio: Add dB range mapping for Sennheiser Communications Headset PC 8

BugLink: https://bugs.launchpad.net/bugs/1928825
commit ab2165e2e6ed17345ffa8ee88ca764e8788ebcd7 upstream.

The decibel volume range contains a negative maximum value resulting in
pipewire complaining about the device and effectivly having no sound
output. The wrong values also resulted in the headset sounding muted
already at a mixer level of about ~25%.

IssueLink: https://gitlab.freedesktop.org/pipewire/pipewire/-/issues/1049
BugzillaLink: https://bugzilla.kernel.org/show_bug.cgi?id=212897
Signed-off-by: Timo Gurr <timo.gurr@gmail.com>
Cc: <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20210503110822.10222-1-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Kamal Mostafa <kamal@canonical.com>
Signed-off-by: Stefan Bader <stefan.bader@canonical.com>
3 years agoALSA: usb-audio: More constifications
Takashi Iwai [Sun, 5 Jan 2020 14:47:26 +0000 (15:47 +0100)]
ALSA: usb-audio: More constifications

BugLink: https://bugs.launchpad.net/bugs/1928825
commit a01df925d1bbc97d6f7fe07b157aadb565315337 upstream.

Apply const prefix to the remaining places: the static table for the
unit information, the mixer maps, the validator tables, etc.

Just for minor optimization and no functional changes.

Link: https://lore.kernel.org/r/20200105144823.29547-12-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Kamal Mostafa <kamal@canonical.com>
Signed-off-by: Stefan Bader <stefan.bader@canonical.com>
3 years agoALSA: usb-audio: Explicitly set up the clock selector
Takashi Iwai [Tue, 13 Apr 2021 08:41:52 +0000 (10:41 +0200)]
ALSA: usb-audio: Explicitly set up the clock selector

BugLink: https://bugs.launchpad.net/bugs/1928825
commit d2e8f641257d0d3af6e45d6ac2d6f9d56b8ea964 upstream.

In the current code, we have some assumption that the audio clock
selector has been set up implicitly and don't want to touch it unless
it's really needed for the fallback autoclock setup.  This works for
most devices but some seem having a problem.  Partially this was
covered for the devices with a single connector at the initialization
phase (commit 086b957cc17f "ALSA: usb-audio: Skip the clock selector
inquiry for single connections"), but also there are cases where the
wrong clock set up is kept silently.  The latter seems to be the cause
of the noises on Behringer devices.

In this patch, we explicitly set up the audio clock selector whenever
the appropriate node is found.

Reported-by: Geraldo Nascimento <geraldogabriel@gmail.com>
BugzillaLink: https://bugzilla.kernel.org/show_bug.cgi?id=199327
Link: https://lore.kernel.org/r/CAEsQvcvF7LnO8PxyyCxuRCx=7jNeSCvFAd-+dE0g_rd1rOxxdw@mail.gmail.com
Cc: <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20210413084152.32325-1-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Kamal Mostafa <kamal@canonical.com>
Signed-off-by: Stefan Bader <stefan.bader@canonical.com>
3 years agoALSA: sb: Fix two use after free in snd_sb_qsound_build
Lv Yunlong [Mon, 26 Apr 2021 14:55:41 +0000 (07:55 -0700)]
ALSA: sb: Fix two use after free in snd_sb_qsound_build

BugLink: https://bugs.launchpad.net/bugs/1928825
commit 4fb44dd2c1dda18606348acdfdb97e8759dde9df upstream.

In snd_sb_qsound_build, snd_ctl_add(..,p->qsound_switch...) and
snd_ctl_add(..,p->qsound_space..) are called. But the second
arguments of snd_ctl_add() could be freed via snd_ctl_add_replace()
->snd_ctl_free_one(). After the error code is returned,
snd_sb_qsound_destroy(p) is called in __error branch.

But in snd_sb_qsound_destroy(), the freed p->qsound_switch and
p->qsound_space are still used by snd_ctl_remove().

My patch set p->qsound_switch and p->qsound_space to NULL if
snd_ctl_add() failed to avoid the uaf bugs. But these codes need
to further be improved with the code style.

Signed-off-by: Lv Yunlong <lyl2019@mail.ustc.edu.cn>
Cc: <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20210426145541.8070-1-lyl2019@mail.ustc.edu.cn
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Kamal Mostafa <kamal@canonical.com>
Signed-off-by: Stefan Bader <stefan.bader@canonical.com>
3 years agoALSA: hda/conexant: Re-order CX5066 quirk table entries
Takashi Iwai [Wed, 28 Apr 2021 11:27:04 +0000 (13:27 +0200)]
ALSA: hda/conexant: Re-order CX5066 quirk table entries

BugLink: https://bugs.launchpad.net/bugs/1928825
commit 2e6a731296be9d356fdccee9fb6ae345dad96438 upstream.

Just re-order the cx5066_fixups[] entries for HP devices for avoiding
the oversight of the duplicated or unapplied item in future.
No functional changes.

Also Cc-to-stable for the further patch applications.

Cc: <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20210428112704.23967-14-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Kamal Mostafa <kamal@canonical.com>
Signed-off-by: Stefan Bader <stefan.bader@canonical.com>
3 years agoALSA: emu8000: Fix a use after free in snd_emu8000_create_mixer
Lv Yunlong [Mon, 26 Apr 2021 13:11:29 +0000 (06:11 -0700)]
ALSA: emu8000: Fix a use after free in snd_emu8000_create_mixer

BugLink: https://bugs.launchpad.net/bugs/1928825
commit 1c98f574403dbcf2eb832d5535a10d967333ef2d upstream.

Our code analyzer reported a uaf.

In snd_emu8000_create_mixer, the callee snd_ctl_add(..,emu->controls[i])
calls snd_ctl_add_replace(.., kcontrol,..). Inside snd_ctl_add_replace(),
if error happens, kcontrol will be freed by snd_ctl_free_one(kcontrol).
Then emu->controls[i] points to a freed memory, and the execution comes
to __error branch of snd_emu8000_create_mixer. The freed emu->controls[i]
is used in snd_ctl_remove(card, emu->controls[i]).

My patch set emu->controls[i] to NULL if snd_ctl_add() failed to avoid
the uaf.

Signed-off-by: Lv Yunlong <lyl2019@mail.ustc.edu.cn>
Cc: <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20210426131129.4796-1-lyl2019@mail.ustc.edu.cn
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Kamal Mostafa <kamal@canonical.com>
Signed-off-by: Stefan Bader <stefan.bader@canonical.com>
3 years agos390/archrandom: add parameter check for s390_arch_random_generate
Harald Freudenberger [Tue, 20 Apr 2021 06:23:12 +0000 (08:23 +0200)]
s390/archrandom: add parameter check for s390_arch_random_generate

BugLink: https://bugs.launchpad.net/bugs/1928825
[ Upstream commit 28096067686c5a5cbd4c35b079749bd805df5010 ]

A review of the code showed, that this function which is exposed
within the whole kernel should do a parameter check for the
amount of bytes requested. If this requested bytes is too high
an unsigned int overflow could happen causing this function to
try to memcpy a really big memory chunk.

This is not a security issue as there are only two invocations
of this function from arch/s390/include/asm/archrandom.h and both
are not exposed to userland.

Reported-by: Sven Schnelle <svens@linux.ibm.com>
Signed-off-by: Harald Freudenberger <freude@linux.ibm.com>
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: Kamal Mostafa <kamal@canonical.com>
Signed-off-by: Stefan Bader <stefan.bader@canonical.com>
3 years agoscsi: libfc: Fix a format specifier
Bart Van Assche [Thu, 15 Apr 2021 22:08:13 +0000 (15:08 -0700)]
scsi: libfc: Fix a format specifier

BugLink: https://bugs.launchpad.net/bugs/1928825
[ Upstream commit 90d6697810f06aceea9de71ad836a8c7669789cd ]

Since the 'mfs' member has been declared as 'u32' in include/scsi/libfc.h,
use the %u format specifier instead of %hu. This patch fixes the following
clang compiler warning:

warning: format specifies type
      'unsigned short' but the argument has type 'u32' (aka 'unsigned int')
      [-Wformat]
                             "lport->mfs:%hu\n", mfs, lport->mfs);
                                         ~~~          ^~~~~~~~~~
                                         %u

Link: https://lore.kernel.org/r/20210415220826.29438-8-bvanassche@acm.org
Cc: Hannes Reinecke <hare@suse.de>
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: Kamal Mostafa <kamal@canonical.com>
Signed-off-by: Stefan Bader <stefan.bader@canonical.com>
3 years agomfd: arizona: Fix rumtime PM imbalance on error
Dinghao Liu [Wed, 7 Apr 2021 05:11:49 +0000 (13:11 +0800)]
mfd: arizona: Fix rumtime PM imbalance on error

BugLink: https://bugs.launchpad.net/bugs/1928825
[ Upstream commit fe6df2b48043bbe1e852b2320501d3b169363c35 ]

pm_runtime_get_sync() will increase the rumtime PM counter
even it returns an error. Thus a pairing decrement is needed
to prevent refcount leak. Fix this by replacing this API with
pm_runtime_resume_and_get(), which will not change the runtime
PM counter on error.

Signed-off-by: Dinghao Liu <dinghao.liu@zju.edu.cn>
Acked-by: Charles Keepax <ckeepax@opensource.cirrus.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: Kamal Mostafa <kamal@canonical.com>
Signed-off-by: Stefan Bader <stefan.bader@canonical.com>
3 years agoscsi: lpfc: Remove unsupported mbox PORT_CAPABILITIES logic
James Smart [Mon, 12 Apr 2021 01:31:22 +0000 (18:31 -0700)]
scsi: lpfc: Remove unsupported mbox PORT_CAPABILITIES logic

BugLink: https://bugs.launchpad.net/bugs/1928825
[ Upstream commit b62232ba8caccaf1954e197058104a6478fac1af ]

SLI-4 does not contain a PORT_CAPABILITIES mailbox command (only SLI-3
does, and SLI-3 doesn't use it), yet there are SLI-4 code paths that have
code to issue the command.  The command will always fail.

Remove the code for the mailbox command and leave only the resulting
"failure path" logic.

Link: https://lore.kernel.org/r/20210412013127.2387-12-jsmart2021@gmail.com
Co-developed-by: Justin Tee <justin.tee@broadcom.com>
Signed-off-by: Justin Tee <justin.tee@broadcom.com>
Signed-off-by: James Smart <jsmart2021@gmail.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: Kamal Mostafa <kamal@canonical.com>
Signed-off-by: Stefan Bader <stefan.bader@canonical.com>
3 years agoscsi: lpfc: Fix error handling for mailboxes completed in MBX_POLL mode
James Smart [Mon, 12 Apr 2021 01:31:17 +0000 (18:31 -0700)]
scsi: lpfc: Fix error handling for mailboxes completed in MBX_POLL mode

BugLink: https://bugs.launchpad.net/bugs/1928825
[ Upstream commit 304ee43238fed517faa123e034b593905b8679f8 ]

In SLI-4, when performing a mailbox command with MBX_POLL, the driver uses
the BMBX register to send the command rather than the MQ. A flag is set
indicating the BMBX register is active and saves the mailbox job struct
(mboxq) in the mbox_active element of the adapter. The routine then waits
for completion or timeout. The mailbox job struct is not freed by the
routine. In cases of timeout, the adapter will be reset. The
lpfc_sli_mbox_sys_flush() routine will clean up the mbox in preparation for
the reset. It clears the BMBX active flag and marks the job structure as
MBX_NOT_FINISHED. But, it never frees the mboxq job structure. Expectation
in both normal completion and timeout cases is that the issuer of the mbx
command will free the structure.  Unfortunately, not all calling paths are
freeing the memory in cases of error.

All calling paths were looked at and updated, if missing, to free the mboxq
memory regardless of completion status.

Link: https://lore.kernel.org/r/20210412013127.2387-7-jsmart2021@gmail.com
Co-developed-by: Justin Tee <justin.tee@broadcom.com>
Signed-off-by: Justin Tee <justin.tee@broadcom.com>
Signed-off-by: James Smart <jsmart2021@gmail.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: Kamal Mostafa <kamal@canonical.com>
Signed-off-by: Stefan Bader <stefan.bader@canonical.com>
3 years agoscsi: lpfc: Fix crash when a REG_RPI mailbox fails triggering a LOGO response
James Smart [Mon, 12 Apr 2021 01:31:13 +0000 (18:31 -0700)]
scsi: lpfc: Fix crash when a REG_RPI mailbox fails triggering a LOGO response

BugLink: https://bugs.launchpad.net/bugs/1928825
[ Upstream commit fffd18ec6579c2d9c72b212169259062fe747888 ]

Fix a crash caused by a double put on the node when the driver completed an
ACC for an unsolicted abort on the same node.  The second put was executed
by lpfc_nlp_not_used() and is wrong because the completion routine executes
the nlp_put when the iocbq was released.  Additionally, the driver is
issuing a LOGO then immediately calls lpfc_nlp_set_state to put the node
into NPR.  This call does nothing.

Remove the lpfc_nlp_not_used call and additional set_state in the
completion routine.  Remove the lpfc_nlp_set_state post issue_logo.  Isn't
necessary.

Link: https://lore.kernel.org/r/20210412013127.2387-3-jsmart2021@gmail.com
Co-developed-by: Justin Tee <justin.tee@broadcom.com>
Signed-off-by: Justin Tee <justin.tee@broadcom.com>
Signed-off-by: James Smart <jsmart2021@gmail.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: Kamal Mostafa <kamal@canonical.com>
Signed-off-by: Stefan Bader <stefan.bader@canonical.com>
3 years agodrm/amdgpu: fix NULL pointer dereference
Guchun Chen [Tue, 30 Mar 2021 09:52:18 +0000 (17:52 +0800)]
drm/amdgpu: fix NULL pointer dereference

BugLink: https://bugs.launchpad.net/bugs/1928825
[ Upstream commit 3c3dc654333f6389803cdcaf03912e94173ae510 ]

ttm->sg needs to be checked before accessing its child member.

Call Trace:
 amdgpu_ttm_backend_destroy+0x12/0x70 [amdgpu]
 ttm_bo_cleanup_memtype_use+0x3a/0x60 [ttm]
 ttm_bo_release+0x17d/0x300 [ttm]
 amdgpu_bo_unref+0x1a/0x30 [amdgpu]
 amdgpu_amdkfd_gpuvm_alloc_memory_of_gpu+0x78b/0x8b0 [amdgpu]
 kfd_ioctl_alloc_memory_of_gpu+0x118/0x220 [amdgpu]
 kfd_ioctl+0x222/0x400 [amdgpu]
 ? kfd_dev_is_large_bar+0x90/0x90 [amdgpu]
 __x64_sys_ioctl+0x8e/0xd0
 ? __context_tracking_exit+0x52/0x90
 do_syscall_64+0x33/0x80
 entry_SYSCALL_64_after_hwframe+0x44/0xa9
RIP: 0033:0x7f97f264d317
Code: b3 66 90 48 8b 05 71 4b 2d 00 64 c7 00 26 00 00 00 48 c7 c0 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 b8 10 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d 41 4b 2d 00 f7 d8 64 89 01 48
RSP: 002b:00007ffdb402c338 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007f97f3cc63a0 RCX: 00007f97f264d317
RDX: 00007ffdb402c380 RSI: 00000000c0284b16 RDI: 0000000000000003
RBP: 00007ffdb402c380 R08: 00007ffdb402c428 R09: 00000000c4000004
R10: 00000000c4000004 R11: 0000000000000246 R12: 00000000c0284b16
R13: 0000000000000003 R14: 00007f97f3cc63a0 R15: 00007f8836200000

Signed-off-by: Guchun Chen <guchun.chen@amd.com>
Acked-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: Kamal Mostafa <kamal@canonical.com>
Signed-off-by: Stefan Bader <stefan.bader@canonical.com>
3 years agoamdgpu: avoid incorrect %hu format string
Arnd Bergmann [Mon, 22 Mar 2021 11:54:42 +0000 (12:54 +0100)]
amdgpu: avoid incorrect %hu format string

BugLink: https://bugs.launchpad.net/bugs/1928825
[ Upstream commit 7d98d416c2cc1c1f7d9508e887de4630e521d797 ]

clang points out that the %hu format string does not match the type
of the variables here:

drivers/gpu/drm/amd/amdgpu/amdgpu_uvd.c:263:7: warning: format specifies type 'unsigned short' but the argument has type 'unsigned int' [-Wformat]
                                  version_major, version_minor);
                                  ^~~~~~~~~~~~~
include/drm/drm_print.h:498:19: note: expanded from macro 'DRM_ERROR'
        __drm_err(fmt, ##__VA_ARGS__)
                  ~~~    ^~~~~~~~~~~

Change it to a regular %u, the same way a previous patch did for
another instance of the same warning.

Reviewed-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Tom Rix <trix@redhat.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: Kamal Mostafa <kamal@canonical.com>
Signed-off-by: Stefan Bader <stefan.bader@canonical.com>
3 years agodrm/amdkfd: Fix cat debugfs hang_hws file causes system crash bug
Qu Huang [Sun, 21 Mar 2021 08:28:18 +0000 (16:28 +0800)]
drm/amdkfd: Fix cat debugfs hang_hws file causes system crash bug

BugLink: https://bugs.launchpad.net/bugs/1928825
[ Upstream commit d73610211eec8aa027850982b1a48980aa1bc96e ]

Here is the system crash log:
[ 1272.884438] BUG: unable to handle kernel NULL pointer dereference at
(null)
[ 1272.884444] IP: [<          (null)>]           (null)
[ 1272.884447] PGD 825b09067 PUD 8267c8067 PMD 0
[ 1272.884452] Oops: 0010 [#1] SMP
[ 1272.884509] CPU: 13 PID: 3485 Comm: cat Kdump: loaded Tainted: G
[ 1272.884515] task: ffff9a38dbd4d140 ti: ffff9a37cd3b8000 task.ti:
ffff9a37cd3b8000
[ 1272.884517] RIP: 0010:[<0000000000000000>]  [<          (null)>]
(null)
[ 1272.884520] RSP: 0018:ffff9a37cd3bbe68  EFLAGS: 00010203
[ 1272.884522] RAX: 0000000000000000 RBX: 0000000000000000 RCX:
0000000000014d5f
[ 1272.884524] RDX: fffffffffffffff4 RSI: 0000000000000001 RDI:
ffff9a38aca4d200
[ 1272.884526] RBP: ffff9a37cd3bbed0 R08: ffff9a38dcd5f1a0 R09:
ffff9a31ffc07300
[ 1272.884527] R10: ffff9a31ffc07300 R11: ffffffffaddd5e9d R12:
ffff9a38b4e0fb00
[ 1272.884529] R13: 0000000000000001 R14: ffff9a37cd3bbf18 R15:
ffff9a38aca4d200
[ 1272.884532] FS:  00007feccaa67740(0000) GS:ffff9a38dcd40000(0000)
knlGS:0000000000000000
[ 1272.884534] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 1272.884536] CR2: 0000000000000000 CR3: 00000008267c0000 CR4:
00000000003407e0
[ 1272.884537] Call Trace:
[ 1272.884544]  [<ffffffffade68940>] ? seq_read+0x130/0x440
[ 1272.884548]  [<ffffffffade40f8f>] vfs_read+0x9f/0x170
[ 1272.884552]  [<ffffffffade41e4f>] SyS_read+0x7f/0xf0
[ 1272.884557]  [<ffffffffae374ddb>] system_call_fastpath+0x22/0x27
[ 1272.884558] Code:  Bad RIP value.
[ 1272.884562] RIP  [<          (null)>]           (null)
[ 1272.884564]  RSP <ffff9a37cd3bbe68>
[ 1272.884566] CR2: 0000000000000000

Signed-off-by: Qu Huang <jinsdb@126.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: Kamal Mostafa <kamal@canonical.com>
Signed-off-by: Stefan Bader <stefan.bader@canonical.com>
3 years agodrm/msm/mdp5: Do not multiply vclk line count by 100
Marijn Suijten [Tue, 6 Apr 2021 21:47:25 +0000 (23:47 +0200)]
drm/msm/mdp5: Do not multiply vclk line count by 100

BugLink: https://bugs.launchpad.net/bugs/1928825
[ Upstream commit 377569f82ea8228c421cef4da33e056a900b58ca ]

Neither vtotal nor drm_mode_vrefresh contain a value that is
premultiplied by 100 making the x100 variable name incorrect and
resulting in vclks_line to become 100 times larger than it is supposed
to be.  The hardware counts 100 clockticks too many before tearcheck,
leading to severe panel issues on at least the Sony Xperia lineup.

This is likely an artifact from the original MDSS DSI panel driver where
the calculation [1] corrected for a premultiplied reference framerate by
100 [2].  It does not appear that the above values were ever
premultiplied in the history of the DRM MDP5 driver.

With this change applied the value written to the SYNC_CONFIG_VSYNC
register is now identical to downstream kernels.

[1]: https://source.codeaurora.org/quic/la/kernel/msm-3.18/tree/drivers/video/msm/mdss/mdss_mdp_intf_cmd.c?h=LA.UM.8.6.c26-02400-89xx.0#n288
[2]: https://source.codeaurora.org/quic/la/kernel/msm-3.18/tree/drivers/video/msm/mdss/mdss_dsi_panel.c?h=LA.UM.8.6.c26-02400-89xx.0#n1648

Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@somainline.org>
Signed-off-by: Marijn Suijten <marijn.suijten@somainline.org>
Link: https://lore.kernel.org/r/20210406214726.131534-3-marijn.suijten@somainline.org
Signed-off-by: Rob Clark <robdclark@chromium.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: Kamal Mostafa <kamal@canonical.com>
Signed-off-by: Stefan Bader <stefan.bader@canonical.com>
3 years agodrm/msm/mdp5: Configure PP_SYNC_HEIGHT to double the vtotal
Marijn Suijten [Tue, 6 Apr 2021 21:47:24 +0000 (23:47 +0200)]
drm/msm/mdp5: Configure PP_SYNC_HEIGHT to double the vtotal

BugLink: https://bugs.launchpad.net/bugs/1928825
[ Upstream commit 2ad52bdb220de5ab348098e3482b01235d15a842 ]

Leaving this at a close-to-maximum register value 0xFFF0 means it takes
very long for the MDSS to generate a software vsync interrupt when the
hardware TE interrupt doesn't arrive.  Configuring this to double the
vtotal (like some downstream kernels) leads to a frame to take at most
twice before the vsync signal, until hardware TE comes up.

In this case the hardware interrupt responsible for providing this
signal - "disp-te" gpio - is not hooked up to the mdp5 vsync/pp logic at
all.  This solves severe panel update issues observed on at least the
Xperia Loire and Tone series, until said gpio is properly hooked up to
an irq.

Suggested-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@somainline.org>
Signed-off-by: Marijn Suijten <marijn.suijten@somainline.org>
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@somainline.org>
Link: https://lore.kernel.org/r/20210406214726.131534-2-marijn.suijten@somainline.org
Signed-off-by: Rob Clark <robdclark@chromium.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: Kamal Mostafa <kamal@canonical.com>
Signed-off-by: Stefan Bader <stefan.bader@canonical.com>
3 years agosched/fair: Ignore percpu threads for imbalance pulls
Lingutla Chandrasekhar [Wed, 7 Apr 2021 22:06:26 +0000 (23:06 +0100)]
sched/fair: Ignore percpu threads for imbalance pulls

BugLink: https://bugs.launchpad.net/bugs/1928825
[ Upstream commit 9bcb959d05eeb564dfc9cac13a59843a4fb2edf2 ]

During load balance, LBF_SOME_PINNED will be set if any candidate task
cannot be detached due to CPU affinity constraints. This can result in
setting env->sd->parent->sgc->group_imbalance, which can lead to a group
being classified as group_imbalanced (rather than any of the other, lower
group_type) when balancing at a higher level.

In workloads involving a single task per CPU, LBF_SOME_PINNED can often be
set due to per-CPU kthreads being the only other runnable tasks on any
given rq. This results in changing the group classification during
load-balance at higher levels when in reality there is nothing that can be
done for this affinity constraint: per-CPU kthreads, as the name implies,
don't get to move around (modulo hotplug shenanigans).

It's not as clear for userspace tasks - a task could be in an N-CPU cpuset
with N-1 offline CPUs, making it an "accidental" per-CPU task rather than
an intended one. KTHREAD_IS_PER_CPU gives us an indisputable signal which
we can leverage here to not set LBF_SOME_PINNED.

Note that the aforementioned classification to group_imbalance (when
nothing can be done) is especially problematic on big.LITTLE systems, which
have a topology the likes of:

  DIE [          ]
  MC  [    ][    ]
       0  1  2  3
       L  L  B  B

  arch_scale_cpu_capacity(L) < arch_scale_cpu_capacity(B)

Here, setting LBF_SOME_PINNED due to a per-CPU kthread when balancing at MC
level on CPUs [0-1] will subsequently prevent CPUs [2-3] from classifying
the [0-1] group as group_misfit_task when balancing at DIE level. Thus, if
CPUs [0-1] are running CPU-bound (misfit) tasks, ill-timed per-CPU kthreads
can significantly delay the upgmigration of said misfit tasks. Systems
relying on ASYM_PACKING are likely to face similar issues.

Signed-off-by: Lingutla Chandrasekhar <clingutla@codeaurora.org>
[Use kthread_is_per_cpu() rather than p->nr_cpus_allowed]
[Reword changelog]
Signed-off-by: Valentin Schneider <valentin.schneider@arm.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Reviewed-by: Dietmar Eggemann <dietmar.eggemann@arm.com>
Reviewed-by: Vincent Guittot <vincent.guittot@linaro.org>
Link: https://lkml.kernel.org/r/20210407220628.3798191-2-valentin.schneider@arm.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: Kamal Mostafa <kamal@canonical.com>
Signed-off-by: Stefan Bader <stefan.bader@canonical.com>
3 years agomedia: gscpa/stv06xx: fix memory leak
Hans Verkuil [Thu, 8 Apr 2021 10:31:20 +0000 (12:31 +0200)]
media: gscpa/stv06xx: fix memory leak

BugLink: https://bugs.launchpad.net/bugs/1928825
[ Upstream commit 4f4e6644cd876c844cdb3bea2dd7051787d5ae25 ]

For two of the supported sensors the stv06xx driver allocates memory which
is stored in sd->sensor_priv. This memory is freed on a disconnect, but if
the probe() fails, then it isn't freed and so this leaks memory.

Add a new probe_error() op that drivers can use to free any allocated
memory in case there was a probe failure.

Thanks to Pavel Skripkin <paskripkin@gmail.com> for discovering the cause
of the memory leak.

Reported-and-tested-by: syzbot+e7f4c64a4248a0340c37@syzkaller.appspotmail.com
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: Kamal Mostafa <kamal@canonical.com>
Signed-off-by: Stefan Bader <stefan.bader@canonical.com>
3 years agomedia: dvb-usb: fix memory leak in dvb_usb_adapter_init
Pavel Skripkin [Sun, 28 Mar 2021 19:32:19 +0000 (21:32 +0200)]
media: dvb-usb: fix memory leak in dvb_usb_adapter_init

BugLink: https://bugs.launchpad.net/bugs/1928825
[ Upstream commit b7cd0da982e3043f2eec7235ac5530cb18d6af1d ]

syzbot reported memory leak in dvb-usb. The problem was
in invalid error handling in dvb_usb_adapter_init().

for (n = 0; n < d->props.num_adapters; n++) {
....
if ((ret = dvb_usb_adapter_stream_init(adap)) ||
(ret = dvb_usb_adapter_dvb_init(adap, adapter_nrs)) ||
(ret = dvb_usb_adapter_frontend_init(adap))) {
return ret;
}
...
d->num_adapters_initialized++;
...
}

In case of error in dvb_usb_adapter_dvb_init() or
dvb_usb_adapter_dvb_init() d->num_adapters_initialized won't be
incremented, but dvb_usb_adapter_exit() relies on it:

for (n = 0; n < d->num_adapters_initialized; n++)

So, allocated objects won't be freed.

Signed-off-by: Pavel Skripkin <paskripkin@gmail.com>
Reported-by: syzbot+3c2be7424cea3b932b0e@syzkaller.appspotmail.com
Signed-off-by: Sean Young <sean@mess.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: Kamal Mostafa <kamal@canonical.com>
Signed-off-by: Stefan Bader <stefan.bader@canonical.com>
3 years agomedia: platform: sti: Fix runtime PM imbalance in regs_show
Dinghao Liu [Wed, 7 Apr 2021 05:43:13 +0000 (07:43 +0200)]
media: platform: sti: Fix runtime PM imbalance in regs_show

BugLink: https://bugs.launchpad.net/bugs/1928825
[ Upstream commit 69306a947b3ae21e0d1cbfc9508f00fec86c7297 ]

pm_runtime_get_sync() will increase the runtime PM counter
even it returns an error. Thus a pairing decrement is needed
to prevent refcount leak. Fix this by replacing this API with
pm_runtime_resume_and_get(), which will not change the runtime
PM counter on error.

Signed-off-by: Dinghao Liu <dinghao.liu@zju.edu.cn>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: Kamal Mostafa <kamal@canonical.com>
Signed-off-by: Stefan Bader <stefan.bader@canonical.com>
3 years agomedia: i2c: adv7842: fix possible use-after-free in adv7842_remove()
Yang Yingliang [Tue, 6 Apr 2021 13:50:53 +0000 (15:50 +0200)]
media: i2c: adv7842: fix possible use-after-free in adv7842_remove()

BugLink: https://bugs.launchpad.net/bugs/1928825
[ Upstream commit 4a15275b6a18597079f18241c87511406575179a ]

This driver's remove path calls cancel_delayed_work(). However, that
function does not wait until the work function finishes. This means
that the callback function may still be running after the driver's
remove function has finished, which would result in a use-after-free.

Fix by calling cancel_delayed_work_sync(), which ensures that
the work is properly cancelled, no longer running, and unable
to re-schedule itself.

Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Yang Yingliang <yangyingliang@huawei.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: Kamal Mostafa <kamal@canonical.com>
Signed-off-by: Stefan Bader <stefan.bader@canonical.com>
3 years agomedia: i2c: tda1997: Fix possible use-after-free in tda1997x_remove()
Yang Yingliang [Tue, 6 Apr 2021 13:49:45 +0000 (15:49 +0200)]
media: i2c: tda1997: Fix possible use-after-free in tda1997x_remove()

BugLink: https://bugs.launchpad.net/bugs/1928825
[ Upstream commit 7f820ab5d4eebfe2d970d32a76ae496a6c286f0f ]

This driver's remove path calls cancel_delayed_work(). However, that
function does not wait until the work function finishes. This means
that the callback function may still be running after the driver's
remove function has finished, which would result in a use-after-free.

Fix by calling cancel_delayed_work_sync(), which ensures that
the work is properly cancelled, no longer running, and unable
to re-schedule itself.

Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Yang Yingliang <yangyingliang@huawei.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: Kamal Mostafa <kamal@canonical.com>
Signed-off-by: Stefan Bader <stefan.bader@canonical.com>
3 years agomedia: i2c: adv7511-v4l2: fix possible use-after-free in adv7511_remove()
Yang Yingliang [Tue, 6 Apr 2021 13:48:12 +0000 (15:48 +0200)]
media: i2c: adv7511-v4l2: fix possible use-after-free in adv7511_remove()

BugLink: https://bugs.launchpad.net/bugs/1928825
[ Upstream commit 2c9541720c66899adf6f3600984cf3ef151295ad ]

This driver's remove path calls cancel_delayed_work(). However, that
function does not wait until the work function finishes. This means
that the callback function may still be running after the driver's
remove function has finished, which would result in a use-after-free.

Fix by calling cancel_delayed_work_sync(), which ensures that
the work is properly cancelled, no longer running, and unable
to re-schedule itself.

Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Yang Yingliang <yangyingliang@huawei.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: Kamal Mostafa <kamal@canonical.com>
Signed-off-by: Stefan Bader <stefan.bader@canonical.com>
3 years agomedia: adv7604: fix possible use-after-free in adv76xx_remove()
Yang Yingliang [Tue, 6 Apr 2021 13:42:46 +0000 (15:42 +0200)]
media: adv7604: fix possible use-after-free in adv76xx_remove()

BugLink: https://bugs.launchpad.net/bugs/1928825
[ Upstream commit fa56f5f1fe31c2050675fa63b84963ebd504a5b3 ]

This driver's remove path calls cancel_delayed_work(). However, that
function does not wait until the work function finishes. This means
that the callback function may still be running after the driver's
remove function has finished, which would result in a use-after-free.

Fix by calling cancel_delayed_work_sync(), which ensures that
the work is properly cancelled, no longer running, and unable
to re-schedule itself.

Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Yang Yingliang <yangyingliang@huawei.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: Kamal Mostafa <kamal@canonical.com>
Signed-off-by: Stefan Bader <stefan.bader@canonical.com>
3 years agomedia: tc358743: fix possible use-after-free in tc358743_remove()
Yang Yingliang [Tue, 6 Apr 2021 13:39:29 +0000 (15:39 +0200)]
media: tc358743: fix possible use-after-free in tc358743_remove()

BugLink: https://bugs.launchpad.net/bugs/1928825
[ Upstream commit 6107a4fdf8554a7aa9488bdc835bb010062fa8a9 ]

This driver's remove path calls cancel_delayed_work(). However, that
function does not wait until the work function finishes. This means
that the callback function may still be running after the driver's
remove function has finished, which would result in a use-after-free.

Fix by calling cancel_delayed_work_sync(), which ensures that
the work is properly cancelled, no longer running, and unable
to re-schedule itself.

Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Yang Yingliang <yangyingliang@huawei.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: Kamal Mostafa <kamal@canonical.com>
Signed-off-by: Stefan Bader <stefan.bader@canonical.com>
3 years agopower: supply: s3c_adc_battery: fix possible use-after-free in s3c_adc_bat_remove()
Yang Yingliang [Wed, 7 Apr 2021 09:19:03 +0000 (17:19 +0800)]
power: supply: s3c_adc_battery: fix possible use-after-free in s3c_adc_bat_remove()

BugLink: https://bugs.launchpad.net/bugs/1928825
[ Upstream commit 68ae256945d2abe9036a7b68af4cc65aff79d5b7 ]

This driver's remove path calls cancel_delayed_work(). However, that
function does not wait until the work function finishes. This means
that the callback function may still be running after the driver's
remove function has finished, which would result in a use-after-free.

Fix by calling cancel_delayed_work_sync(), which ensures that
the work is properly cancelled, no longer running, and unable
to re-schedule itself.

Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Yang Yingliang <yangyingliang@huawei.com>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: Kamal Mostafa <kamal@canonical.com>
Signed-off-by: Stefan Bader <stefan.bader@canonical.com>
3 years agopower: supply: generic-adc-battery: fix possible use-after-free in gab_remove()
Yang Yingliang [Wed, 7 Apr 2021 09:17:06 +0000 (17:17 +0800)]
power: supply: generic-adc-battery: fix possible use-after-free in gab_remove()

BugLink: https://bugs.launchpad.net/bugs/1928825
[ Upstream commit b6cfa007b3b229771d9588970adb4ab3e0487f49 ]

This driver's remove path calls cancel_delayed_work(). However, that
function does not wait until the work function finishes. This means
that the callback function may still be running after the driver's
remove function has finished, which would result in a use-after-free.

Fix by calling cancel_delayed_work_sync(), which ensures that
the work is properly cancelled, no longer running, and unable
to re-schedule itself.

Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Yang Yingliang <yangyingliang@huawei.com>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: Kamal Mostafa <kamal@canonical.com>
Signed-off-by: Stefan Bader <stefan.bader@canonical.com>
3 years agoclk: socfpga: arria10: Fix memory leak of socfpga_clk on error return
Colin Ian King [Tue, 6 Apr 2021 17:01:15 +0000 (18:01 +0100)]
clk: socfpga: arria10: Fix memory leak of socfpga_clk on error return

BugLink: https://bugs.launchpad.net/bugs/1928825
[ Upstream commit 657d4d1934f75a2d978c3cf2086495eaa542e7a9 ]

There is an error return path that is not kfree'ing socfpga_clk leading
to a memory leak. Fix this by adding in the missing kfree call.

Addresses-Coverity: ("Resource leak")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Link: https://lore.kernel.org/r/20210406170115.430990-1-colin.king@canonical.com
Acked-by: Dinh Nguyen <dinguyen@kernel.org>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: Kamal Mostafa <kamal@canonical.com>
Signed-off-by: Stefan Bader <stefan.bader@canonical.com>
3 years agomedia: vivid: update EDID
Hans Verkuil [Thu, 25 Mar 2021 07:48:21 +0000 (08:48 +0100)]
media: vivid: update EDID

BugLink: https://bugs.launchpad.net/bugs/1928825
[ Upstream commit 443ec4bbc6116f6f492a7a1282bfd8422c862158 ]

The EDID had a few mistakes as reported by edid-decode:

Block 1, CTA-861 Extension Block:
  Video Data Block: For improved preferred timing interoperability, set 'Native detailed modes' to 1.
  Video Capability Data Block: S_PT is equal to S_IT and S_CE, so should be set to 0 instead.

Fixed those.

Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: Kamal Mostafa <kamal@canonical.com>
Signed-off-by: Stefan Bader <stefan.bader@canonical.com>
3 years agomedia: em28xx: fix memory leak
Muhammad Usama Anjum [Wed, 24 Mar 2021 18:07:53 +0000 (19:07 +0100)]
media: em28xx: fix memory leak

BugLink: https://bugs.launchpad.net/bugs/1928825
[ Upstream commit 0ae10a7dc8992ee682ff0b1752ff7c83d472eef1 ]

If some error occurs, URB buffers should also be freed. If they aren't
freed with the dvb here, the em28xx_dvb_fini call doesn't frees the URB
buffers as dvb is set to NULL. The function in which error occurs should
do all the cleanup for the allocations it had done.

Tested the patch with the reproducer provided by syzbot. This patch
fixes the memleak.

Reported-by: syzbot+889397c820fa56adf25d@syzkaller.appspotmail.com
Signed-off-by: Muhammad Usama Anjum <musamaanjum@gmail.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: Kamal Mostafa <kamal@canonical.com>
Signed-off-by: Stefan Bader <stefan.bader@canonical.com>
3 years agoscsi: scsi_dh_alua: Remove check for ASC 24h in alua_rtpg()
Ewan D. Milne [Wed, 31 Mar 2021 20:11:54 +0000 (16:11 -0400)]
scsi: scsi_dh_alua: Remove check for ASC 24h in alua_rtpg()

BugLink: https://bugs.launchpad.net/bugs/1928825
[ Upstream commit bc3f2b42b70eb1b8576e753e7d0e117bbb674496 ]

Some arrays return ILLEGAL_REQUEST with ASC 00h if they don't support the
RTPG extended header so remove the check for INVALID FIELD IN CDB.

Link: https://lore.kernel.org/r/20210331201154.20348-1-emilne@redhat.com
Reviewed-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: Ewan D. Milne <emilne@redhat.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: Kamal Mostafa <kamal@canonical.com>
Signed-off-by: Stefan Bader <stefan.bader@canonical.com>
3 years agoscsi: smartpqi: Add new PCI IDs
Kevin Barnett [Thu, 11 Mar 2021 20:17:48 +0000 (14:17 -0600)]
scsi: smartpqi: Add new PCI IDs

BugLink: https://bugs.launchpad.net/bugs/1928825
[ Upstream commit 75fbeacca3ad30835e903002dba98dd909b4dfff ]

Add support for newer hardware.

Link: https://lore.kernel.org/r/161549386882.25025.2594251735886014958.stgit@brunhilda
Reviewed-by: Scott Benesh <scott.benesh@microchip.com>
Reviewed-by: Scott Teel <scott.teel@microchip.com>
Acked-by: Martin Wilck <mwilck@suse.com>
Signed-off-by: Kevin Barnett <kevin.barnett@microchip.com>
Signed-off-by: Don Brace <don.brace@microchip.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: Kamal Mostafa <kamal@canonical.com>
Signed-off-by: Stefan Bader <stefan.bader@canonical.com>
3 years agoscsi: smartpqi: Correct request leakage during reset operations
Murthy Bhat [Thu, 11 Mar 2021 20:15:03 +0000 (14:15 -0600)]
scsi: smartpqi: Correct request leakage during reset operations

BugLink: https://bugs.launchpad.net/bugs/1928825
[ Upstream commit b622a601a13ae5974c5b0aeecb990c224b8db0d9 ]

While failing queued I/Os in TMF path, there was a request leak and hence
stale entries in request pool with ref count being non-zero. In shutdown
path we have a BUG_ON to catch stuck I/O either in firmware or in the
driver. The stale requests caused a system crash. The I/O request pool
leakage also lead to a significant performance drop.

Link: https://lore.kernel.org/r/161549370379.25025.12793264112620796062.stgit@brunhilda
Reviewed-by: Scott Teel <scott.teel@microchip.com>
Reviewed-by: Scott Benesh <scott.benesh@microchip.com>
Reviewed-by: Kevin Barnett <kevin.barnett@microchip.com>
Signed-off-by: Murthy Bhat <Murthy.Bhat@microchip.com>
Signed-off-by: Don Brace <don.brace@microchip.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: Kamal Mostafa <kamal@canonical.com>
Signed-off-by: Stefan Bader <stefan.bader@canonical.com>
3 years agoata: ahci: Disable SXS for Hisilicon Kunpeng920
Xingui Yang [Fri, 12 Mar 2021 10:24:36 +0000 (18:24 +0800)]
ata: ahci: Disable SXS for Hisilicon Kunpeng920

BugLink: https://bugs.launchpad.net/bugs/1928825
[ Upstream commit 234e6d2c18f5b080cde874483c4c361f3ae7cffe ]

On Hisilicon Kunpeng920, ESP is set to 1 by default for all ports of
SATA controller. In some scenarios, some ports are not external SATA ports,
and it cause disks connected to these ports to be identified as removable
disks. So disable the SXS capability on the software side to prevent users
from mistakenly considering non-removable disks as removable disks and
performing related operations.

Signed-off-by: Xingui Yang <yangxingui@huawei.com>
Signed-off-by: Luo Jiaxing <luojiaxing@huawei.com>
Reviewed-by: John Garry <john.garry@huawei.com>
Link: https://lore.kernel.org/r/1615544676-61926-1-git-send-email-luojiaxing@huawei.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: Kamal Mostafa <kamal@canonical.com>
Signed-off-by: Stefan Bader <stefan.bader@canonical.com>
3 years agommc: sdhci-pci: Add PCI IDs for Intel LKF
Adrian Hunter [Mon, 22 Mar 2021 05:53:56 +0000 (07:53 +0200)]
mmc: sdhci-pci: Add PCI IDs for Intel LKF

BugLink: https://bugs.launchpad.net/bugs/1928825
[ Upstream commit ee629112be8b4eff71d4d3d108a28bc7dc877e13 ]

Add PCI IDs for Intel LKF eMMC and SD card host controllers.

Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Link: https://lore.kernel.org/r/20210322055356.24923-1-adrian.hunter@intel.com
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: Kamal Mostafa <kamal@canonical.com>
Signed-off-by: Stefan Bader <stefan.bader@canonical.com>
3 years agoscsi: qla2xxx: Fix use after free in bsg
Quinn Tran [Mon, 29 Mar 2021 08:52:22 +0000 (01:52 -0700)]
scsi: qla2xxx: Fix use after free in bsg

BugLink: https://bugs.launchpad.net/bugs/1928825
[ Upstream commit 2ce35c0821afc2acd5ee1c3f60d149f8b2520ce8 ]

On bsg command completion, bsg_job_done() was called while qla driver
continued to access the bsg_job buffer. bsg_job_done() would free up
resources that ended up being reused by other task while the driver
continued to access the buffers. As a result, driver was reading garbage
data.

localhost kernel: BUG: KASAN: use-after-free in sg_next+0x64/0x80
localhost kernel: Read of size 8 at addr ffff8883228a3330 by task swapper/26/0
localhost kernel:
localhost kernel: CPU: 26 PID: 0 Comm: swapper/26 Kdump:
loaded Tainted: G          OE    --------- -  - 4.18.0-193.el8.x86_64+debug #1
localhost kernel: Hardware name: HP ProLiant DL360
Gen9/ProLiant DL360 Gen9, BIOS P89 08/12/2016
localhost kernel: Call Trace:
localhost kernel: <IRQ>
localhost kernel: dump_stack+0x9a/0xf0
localhost kernel: print_address_description.cold.3+0x9/0x23b
localhost kernel: kasan_report.cold.4+0x65/0x95
localhost kernel: debug_dma_unmap_sg.part.12+0x10d/0x2d0
localhost kernel: qla2x00_bsg_sp_free+0xaf6/0x1010 [qla2xxx]

Link: https://lore.kernel.org/r/20210329085229.4367-6-njavali@marvell.com
Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com>
Signed-off-by: Quinn Tran <qutran@marvell.com>
Signed-off-by: Saurav Kashyap <skashyap@marvell.com>
Signed-off-by: Nilesh Javali <njavali@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: Kamal Mostafa <kamal@canonical.com>
Signed-off-by: Stefan Bader <stefan.bader@canonical.com>
3 years agodrm/vkms: fix misuse of WARN_ON
Dmitry Vyukov [Sat, 20 Mar 2021 13:28:40 +0000 (14:28 +0100)]
drm/vkms: fix misuse of WARN_ON

BugLink: https://bugs.launchpad.net/bugs/1928825
[ Upstream commit b4142fc4d52d051d4d8df1fb6c569e5b445d369e ]

vkms_vblank_simulate() uses WARN_ON for timing-dependent condition
(timer overrun). This is a mis-use of WARN_ON, WARN_ON must be used
to denote kernel bugs. Use pr_warn() instead.

Signed-off-by: Dmitry Vyukov <dvyukov@google.com>
Reported-by: syzbot+4fc21a003c8332eb0bdd@syzkaller.appspotmail.com
Cc: Rodrigo Siqueira <rodrigosiqueiramelo@gmail.com>
Cc: Melissa Wen <melissa.srw@gmail.com>
Cc: Haneen Mohammed <hamohammed.sa@gmail.com>
Cc: Daniel Vetter <daniel@ffwll.ch>
Cc: David Airlie <airlied@linux.ie>
Cc: dri-devel@lists.freedesktop.org
Cc: linux-kernel@vger.kernel.org
Acked-by: Melissa Wen <melissa.srw@gmail.com>
Signed-off-by: Melissa Wen <melissa.srw@gmail.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20210320132840.1315853-1-dvyukov@google.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: Kamal Mostafa <kamal@canonical.com>
Signed-off-by: Stefan Bader <stefan.bader@canonical.com>
3 years agoscsi: qla2xxx: Always check the return value of qla24xx_get_isp_stats()
Bart Van Assche [Sat, 20 Mar 2021 23:23:58 +0000 (16:23 -0700)]
scsi: qla2xxx: Always check the return value of qla24xx_get_isp_stats()

BugLink: https://bugs.launchpad.net/bugs/1928825
[ Upstream commit a2b2cc660822cae08c351c7f6b452bfd1330a4f7 ]

This patch fixes the following Coverity warning:

    CID 361199 (#1 of 1): Unchecked return value (CHECKED_RETURN)
    3. check_return: Calling qla24xx_get_isp_stats without checking return
    value (as is done elsewhere 4 out of 5 times).

Link: https://lore.kernel.org/r/20210320232359.941-7-bvanassche@acm.org
Cc: Quinn Tran <qutran@marvell.com>
Cc: Mike Christie <michael.christie@oracle.com>
Cc: Himanshu Madhani <himanshu.madhani@oracle.com>
Cc: Daniel Wagner <dwagner@suse.de>
Cc: Lee Duncan <lduncan@suse.com>
Reviewed-by: Daniel Wagner <dwagner@suse.de>
Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com>
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: Kamal Mostafa <kamal@canonical.com>
Signed-off-by: Stefan Bader <stefan.bader@canonical.com>
3 years agodrm/amd/display: fix dml prefetch validation
Dmytro Laktyushkin [Thu, 4 Mar 2021 16:04:26 +0000 (11:04 -0500)]
drm/amd/display: fix dml prefetch validation

BugLink: https://bugs.launchpad.net/bugs/1928825
[ Upstream commit 8ee0fea4baf90e43efe2275de208a7809f9985bc ]

Incorrect variable used, missing initialization during validation.

Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Dmytro Laktyushkin <Dmytro.Laktyushkin@amd.com>
Reviewed-by: Eric Bernstein <Eric.Bernstein@amd.com>
Acked-by: Solomon Chiu <solomon.chiu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: Kamal Mostafa <kamal@canonical.com>
Signed-off-by: Stefan Bader <stefan.bader@canonical.com>
3 years agodrm/amd/display: Fix UBSAN warning for not a valid value for type '_Bool'
Anson Jacob [Tue, 2 Mar 2021 21:16:36 +0000 (16:16 -0500)]
drm/amd/display: Fix UBSAN warning for not a valid value for type '_Bool'

BugLink: https://bugs.launchpad.net/bugs/1928825
[ Upstream commit 6a30a92997eee49554f72b462dce90abe54a496f ]

[Why]
dc_cursor_position do not initialise position.translate_by_source when
crtc or plane->state->fb is NULL. UBSAN caught this error in
dce110_set_cursor_position, as the value was garbage.

[How]
Initialise dc_cursor_position structure elements to 0 in handle_cursor_update
before calling get_cursor_position.

Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Bug: https://gitlab.freedesktop.org/drm/amd/-/issues/1471
Reported-by: Lyude Paul <lyude@redhat.com>
Signed-off-by: Anson Jacob <Anson.Jacob@amd.com>
Reviewed-by: Aurabindo Jayamohanan Pillai <Aurabindo.Pillai@amd.com>
Acked-by: Solomon Chiu <solomon.chiu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: Kamal Mostafa <kamal@canonical.com>
Signed-off-by: Stefan Bader <stefan.bader@canonical.com>
3 years agodrm/amdgpu : Fix asic reset regression issue introduce by 8f211fe8ac7c4f
shaoyunl [Tue, 9 Mar 2021 15:30:15 +0000 (10:30 -0500)]
drm/amdgpu : Fix asic reset regression issue introduce by 8f211fe8ac7c4f

BugLink: https://bugs.launchpad.net/bugs/1928825
[ Upstream commit c8941550aa66b2a90f4b32c45d59e8571e33336e ]

This recent change introduce SDMA interrupt info printing with irq->process function.
These functions do not require a set function to enable/disable the irq

Signed-off-by: shaoyunl <shaoyun.liu@amd.com>
Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: Kamal Mostafa <kamal@canonical.com>
Signed-off-by: Stefan Bader <stefan.bader@canonical.com>
3 years agodrm/amdkfd: Fix UBSAN shift-out-of-bounds warning
Anson Jacob [Wed, 3 Mar 2021 17:33:15 +0000 (12:33 -0500)]
drm/amdkfd: Fix UBSAN shift-out-of-bounds warning

BugLink: https://bugs.launchpad.net/bugs/1928825
[ Upstream commit 50e2fc36e72d4ad672032ebf646cecb48656efe0 ]

If get_num_sdma_queues or get_num_xgmi_sdma_queues is 0, we end up
doing a shift operation where the number of bits shifted equals
number of bits in the operand. This behaviour is undefined.

Set num_sdma_queues or num_xgmi_sdma_queues to ULLONG_MAX, if the
count is >= number of bits in the operand.

Bug: https://gitlab.freedesktop.org/drm/amd/-/issues/1472

Reported-by: Lyude Paul <lyude@redhat.com>
Signed-off-by: Anson Jacob <Anson.Jacob@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com>
Tested-by: Lyude Paul <lyude@redhat.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: Kamal Mostafa <kamal@canonical.com>
Signed-off-by: Stefan Bader <stefan.bader@canonical.com>
3 years agodrm/amdgpu: mask the xgmi number of hops reported from psp to kfd
Jonathan Kim [Wed, 27 Jan 2021 20:24:59 +0000 (15:24 -0500)]
drm/amdgpu: mask the xgmi number of hops reported from psp to kfd

BugLink: https://bugs.launchpad.net/bugs/1928825
[ Upstream commit 4ac5617c4b7d0f0a8f879997f8ceaa14636d7554 ]

The psp supplies the link type in the upper 2 bits of the psp xgmi node
information num_hops field.  With a new link type, Aldebaran has these
bits set to a non-zero value (1 = xGMI3) so the KFD topology will report
the incorrect IO link weights without proper masking.
The actual number of hops is located in the 3 least significant bits of
this field so mask if off accordingly before passing it to the KFD.

Signed-off-by: Jonathan Kim <jonathan.kim@amd.com>
Reviewed-by: Amber Lin <amber.lin@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: Kamal Mostafa <kamal@canonical.com>
Signed-off-by: Stefan Bader <stefan.bader@canonical.com>
3 years agopower: supply: Use IRQF_ONESHOT
dongjian [Mon, 22 Mar 2021 11:21:33 +0000 (19:21 +0800)]
power: supply: Use IRQF_ONESHOT

BugLink: https://bugs.launchpad.net/bugs/1928825
[ Upstream commit 2469b836fa835c67648acad17d62bc805236a6ea ]

Fixes coccicheck error:

drivers/power/supply/pm2301_charger.c:1089:7-27: ERROR:
drivers/power/supply/lp8788-charger.c:502:8-28: ERROR:
drivers/power/supply/tps65217_charger.c:239:8-33: ERROR:
drivers/power/supply/tps65090-charger.c:303:8-33: ERROR:

Threaded IRQ with no primary handler requested without IRQF_ONESHOT

Signed-off-by: dongjian <dongjian@yulong.com>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: Kamal Mostafa <kamal@canonical.com>
Signed-off-by: Stefan Bader <stefan.bader@canonical.com>
3 years agomedia: gspca/sq905.c: fix uninitialized variable
Hans Verkuil [Thu, 11 Mar 2021 14:46:40 +0000 (15:46 +0100)]
media: gspca/sq905.c: fix uninitialized variable

BugLink: https://bugs.launchpad.net/bugs/1928825
[ Upstream commit eaaea4681984c79d2b2b160387b297477f0c1aab ]

act_len can be uninitialized if usb_bulk_msg() returns an error.
Set it to 0 to avoid a KMSAN error.

Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Reported-by: syzbot+a4e309017a5f3a24c7b3@syzkaller.appspotmail.com
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: Kamal Mostafa <kamal@canonical.com>
Signed-off-by: Stefan Bader <stefan.bader@canonical.com>
3 years agomedia: media/saa7164: fix saa7164_encoder_register() memory leak bugs
Daniel Niv [Thu, 11 Mar 2021 02:53:00 +0000 (03:53 +0100)]
media: media/saa7164: fix saa7164_encoder_register() memory leak bugs

BugLink: https://bugs.launchpad.net/bugs/1928825
[ Upstream commit c759b2970c561e3b56aa030deb13db104262adfe ]

Add a fix for the memory leak bugs that can occur when the
saa7164_encoder_register() function fails.
The function allocates memory without explicitly freeing
it when errors occur.
Add a better error handling that deallocate the unused buffers before the
function exits during a fail.

Signed-off-by: Daniel Niv <danielniv3@gmail.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: Kamal Mostafa <kamal@canonical.com>
Signed-off-by: Stefan Bader <stefan.bader@canonical.com>
3 years agoextcon: arizona: Fix various races on driver unbind
Hans de Goede [Sun, 7 Mar 2021 15:17:57 +0000 (16:17 +0100)]
extcon: arizona: Fix various races on driver unbind

BugLink: https://bugs.launchpad.net/bugs/1928825
[ Upstream commit e5b499f6fb17bc95a813e85d0796522280203806 ]

We must free/disable all interrupts and cancel all pending works
before doing further cleanup.

Before this commit arizona_extcon_remove() was doing several
register writes to shut things down before disabling the IRQs
and it was cancelling only 1 of the 3 different works used.

Move all the register-writes shutting things down to after
the disabling of the IRQs and add the 2 missing
cancel_delayed_work_sync() calls.

This fixes various possible races on driver unbind. One of which
would always trigger on devices using the mic-clamp feature for
jack detection. The ARIZONA_MICD_CLAMP_MODE_MASK update was
done before disabling the IRQs, causing:
1. arizona_jackdet() to run
2. detect a jack being inserted (clamp disabled means jack inserted)
3. call arizona_start_mic() which:
3.1 Enables the MICVDD regulator
3.2 takes a pm_runtime_reference

And this was all happening after the ARIZONA_MICD_ENA bit clearing,
which would undo 3.1 and 3.2 because the ARIZONA_MICD_CLAMP_MODE_MASK
update was being done after the ARIZONA_MICD_ENA bit clearing.

So this means that arizona_extcon_remove() would exit with
1. MICVDD enabled and 2. The pm_runtime_reference being unbalanced.

MICVDD still being enabled caused the following oops when the
regulator is released by the devm framework:

[ 2850.745757] ------------[ cut here ]------------
[ 2850.745827] WARNING: CPU: 2 PID: 2098 at drivers/regulator/core.c:2123 _regulator_put.part.0+0x19f/0x1b0
[ 2850.745835] Modules linked in: extcon_arizona ...
...
[ 2850.746909] Call Trace:
[ 2850.746932]  regulator_put+0x2d/0x40
[ 2850.746946]  release_nodes+0x22a/0x260
[ 2850.746984]  __device_release_driver+0x190/0x240
[ 2850.747002]  driver_detach+0xd4/0x120
...
[ 2850.747337] ---[ end trace f455dfd7abd9781f ]---

Note this oops is just one of various theoretically possible races caused
by the wrong ordering inside arizona_extcon_remove(), this fixes the
ordering fixing all possible races, including the reported oops.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Acked-by: Charles Keepax <ckeepax@opensource.cirrus.com>
Tested-by: Charles Keepax <ckeepax@opensource.cirrus.com>
Acked-by: Chanwoo Choi <cw00.choi@samsung.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: Kamal Mostafa <kamal@canonical.com>
Signed-off-by: Stefan Bader <stefan.bader@canonical.com>
3 years agoextcon: arizona: Fix some issues when HPDET IRQ fires after the jack has been unplugged
Hans de Goede [Sun, 7 Mar 2021 15:17:56 +0000 (16:17 +0100)]
extcon: arizona: Fix some issues when HPDET IRQ fires after the jack has been unplugged

BugLink: https://bugs.launchpad.net/bugs/1928825
[ Upstream commit c309a3e8793f7e01c4a4ec7960658380572cb576 ]

When the jack is partially inserted and then removed again it may be
removed while the hpdet code is running. In this case the following
may happen:

1. The "JACKDET rise" or ""JACKDET fall" IRQ triggers
2. arizona_jackdet runs and takes info->lock
3. The "HPDET" IRQ triggers
4. arizona_hpdet_irq runs, blocks on info->lock
5. arizona_jackdet calls arizona_stop_mic() and clears info->hpdet_done
6. arizona_jackdet releases info->lock
7. arizona_hpdet_irq now can continue running and:
7.1 Calls arizona_start_mic() (if a mic was detected)
7.2 sets info->hpdet_done

Step 7 is undesirable / a bug:
7.1 causes the device to stay in a high power-state (with MICVDD enabled)
7.2 causes hpdet to not run on the next jack insertion, which in turn
    causes the EXTCON_JACK_HEADPHONE state to never get set

This fixes both issues by skipping these 2 steps when arizona_hpdet_irq
runs after the jack has been unplugged.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Acked-by: Charles Keepax <ckeepax@opensource.cirrus.com>
Tested-by: Charles Keepax <ckeepax@opensource.cirrus.com>
Acked-by: Chanwoo Choi <cw00.choi@samsung.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: Kamal Mostafa <kamal@canonical.com>
Signed-off-by: Stefan Bader <stefan.bader@canonical.com>
3 years agopower: supply: bq27xxx: fix power_avg for newer ICs
Matthias Schiffer [Wed, 3 Mar 2021 09:54:19 +0000 (10:54 +0100)]
power: supply: bq27xxx: fix power_avg for newer ICs

BugLink: https://bugs.launchpad.net/bugs/1928825
[ Upstream commit c4d57c22ac65bd503716062a06fad55a01569cac ]

On all newer bq27xxx ICs, the AveragePower register contains a signed
value; in addition to handling the raw value as unsigned, the driver
code also didn't convert it to µW as expected.

At least for the BQ28Z610, the reference manual incorrectly states that
the value is in units of 1mW and not 10mW. I have no way of knowing
whether the manuals of other supported ICs contain the same error, or if
there are models that actually use 1mW. At least, the new code shouldn't
be *less* correct than the old version for any device.

power_avg is removed from the cache structure, se we don't have to
extend it to store both a signed value and an error code. Always getting
an up-to-date value may be desirable anyways, as it avoids inconsistent
current and power readings when switching between charging and
discharging.

Signed-off-by: Matthias Schiffer <matthias.schiffer@ew.tq-group.com>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: Kamal Mostafa <kamal@canonical.com>
Signed-off-by: Stefan Bader <stefan.bader@canonical.com>
3 years agomedia: imx: capture: Return -EPIPE from __capture_legacy_try_fmt()
Laurent Pinchart [Mon, 15 Feb 2021 04:26:47 +0000 (05:26 +0100)]
media: imx: capture: Return -EPIPE from __capture_legacy_try_fmt()

BugLink: https://bugs.launchpad.net/bugs/1928825
[ Upstream commit cc271b6754691af74d710b761eaf027e3743e243 ]

The correct return code to report an invalid pipeline configuration is
-EPIPE. Return it instead of -EINVAL from __capture_legacy_try_fmt()
when the capture format doesn't match the media bus format of the
connected subdev.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Rui Miguel Silva <rmfrfs@gmail.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: Kamal Mostafa <kamal@canonical.com>
Signed-off-by: Stefan Bader <stefan.bader@canonical.com>
3 years agomedia: drivers: media: pci: sta2x11: fix Kconfig dependency on GPIOLIB
Julian Braha [Thu, 25 Feb 2021 08:06:58 +0000 (09:06 +0100)]
media: drivers: media: pci: sta2x11: fix Kconfig dependency on GPIOLIB

BugLink: https://bugs.launchpad.net/bugs/1928825
[ Upstream commit 24df8b74c8b2fb42c49ffe8585562da0c96446ff ]

When STA2X11_VIP is enabled, and GPIOLIB is disabled,
Kbuild gives the following warning:

WARNING: unmet direct dependencies detected for VIDEO_ADV7180
  Depends on [n]: MEDIA_SUPPORT [=y] && GPIOLIB [=n] && VIDEO_V4L2 [=y] && I2C [=y]
  Selected by [y]:
  - STA2X11_VIP [=y] && MEDIA_SUPPORT [=y] && MEDIA_PCI_SUPPORT [=y] && MEDIA_CAMERA_SUPPORT [=y] && PCI [=y] && VIDEO_V4L2 [=y] && VIRT_TO_BUS [=y] && I2C [=y] && (STA2X11 [=n] || COMPILE_TEST [=y]) && MEDIA_SUBDRV_AUTOSELECT [=y]

This is because STA2X11_VIP selects VIDEO_ADV7180
without selecting or depending on GPIOLIB,
despite VIDEO_ADV7180 depending on GPIOLIB.

Signed-off-by: Julian Braha <julianbraha@gmail.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: Kamal Mostafa <kamal@canonical.com>
Signed-off-by: Stefan Bader <stefan.bader@canonical.com>
3 years agomedia: ite-cir: check for receive overflow
Sean Young [Mon, 22 Feb 2021 08:08:35 +0000 (09:08 +0100)]
media: ite-cir: check for receive overflow

BugLink: https://bugs.launchpad.net/bugs/1928825
[ Upstream commit 28c7afb07ccfc0a939bb06ac1e7afe669901c65a ]

It's best if this condition is reported.

Signed-off-by: Sean Young <sean@mess.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: Kamal Mostafa <kamal@canonical.com>
Signed-off-by: Stefan Bader <stefan.bader@canonical.com>
3 years agoscsi: target: pscsi: Fix warning in pscsi_complete_cmd()
Chaitanya Kulkarni [Sun, 28 Feb 2021 05:56:26 +0000 (21:56 -0800)]
scsi: target: pscsi: Fix warning in pscsi_complete_cmd()

BugLink: https://bugs.launchpad.net/bugs/1928825
[ Upstream commit fd48c056a32ed6e7754c7c475490f3bed54ed378 ]

This fixes a compilation warning in pscsi_complete_cmd():

     drivers/target/target_core_pscsi.c: In function ‘pscsi_complete_cmd’:
     drivers/target/target_core_pscsi.c:624:5: warning: suggest braces around empty body in an ‘if’ statement [-Wempty-body]
     ; /* XXX: TCM_LOGICAL_UNIT_COMMUNICATION_FAILURE */

Link: https://lore.kernel.org/r/20210228055645.22253-5-chaitanya.kulkarni@wdc.com
Reviewed-by: Mike Christie <michael.christie@oracle.com>
Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com>
Signed-off-by: Chaitanya Kulkarni <chaitanya.kulkarni@wdc.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: Kamal Mostafa <kamal@canonical.com>
Signed-off-by: Stefan Bader <stefan.bader@canonical.com>
3 years agoscsi: lpfc: Fix pt2pt connection does not recover after LOGO
James Smart [Mon, 1 Mar 2021 17:18:06 +0000 (09:18 -0800)]
scsi: lpfc: Fix pt2pt connection does not recover after LOGO

BugLink: https://bugs.launchpad.net/bugs/1928825
[ Upstream commit bd4f5100424d17d4e560d6653902ef8e49b2fc1f ]

On a pt2pt setup, between 2 initiators, if one side issues a a LOGO, there
is no relogin attempt. The FC specs are grey in this area on which port
(higher wwn or not) is to re-login.

As there is no spec guidance, unconditionally re-PLOGI after the logout to
ensure a login is re-established.

Link: https://lore.kernel.org/r/20210301171821.3427-8-jsmart2021@gmail.com
Co-developed-by: Dick Kennedy <dick.kennedy@broadcom.com>
Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com>
Signed-off-by: James Smart <jsmart2021@gmail.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: Kamal Mostafa <kamal@canonical.com>
Signed-off-by: Stefan Bader <stefan.bader@canonical.com>
3 years agoscsi: lpfc: Fix incorrect dbde assignment when building target abts wqe
James Smart [Mon, 1 Mar 2021 17:18:00 +0000 (09:18 -0800)]
scsi: lpfc: Fix incorrect dbde assignment when building target abts wqe

BugLink: https://bugs.launchpad.net/bugs/1928825
[ Upstream commit 9302154c07bff4e7f7f43c506a1ac84540303d06 ]

The wqe_dbde field indicates whether a Data BDE is present in Words 0:2 and
should therefore should be clear in the abts request wqe. By setting the
bit we can be misleading fw into error cases.

Clear the wqe_dbde field.

Link: https://lore.kernel.org/r/20210301171821.3427-2-jsmart2021@gmail.com
Co-developed-by: Dick Kennedy <dick.kennedy@broadcom.com>
Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com>
Signed-off-by: James Smart <jsmart2021@gmail.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: Kamal Mostafa <kamal@canonical.com>
Signed-off-by: Stefan Bader <stefan.bader@canonical.com>
3 years agodrm/amd/display: Don't optimize bandwidth before disabling planes
Aric Cyr [Fri, 12 Feb 2021 23:13:59 +0000 (18:13 -0500)]
drm/amd/display: Don't optimize bandwidth before disabling planes

BugLink: https://bugs.launchpad.net/bugs/1928825
[ Upstream commit 6ad98e8aeb0106f453bb154933e8355849244990 ]

[Why]
There is a window of time where we optimize bandwidth due to no streams
enabled will enable PSTATE changing but HUBPs are not disabled yet.
This results in underflow counter increasing in some hotplug scenarios.

[How]
Set the optimize-bandwidth flag for later processing once all the HUBPs
are properly disabled.

Signed-off-by: Aric Cyr <aric.cyr@amd.com>
Acked-by: Bindu Ramamurthy <bindu.r@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: Kamal Mostafa <kamal@canonical.com>
Signed-off-by: Stefan Bader <stefan.bader@canonical.com>
3 years agodrm/amd/display: Check for DSC support instead of ASIC revision
Eryk Brol [Tue, 9 Feb 2021 22:09:52 +0000 (17:09 -0500)]
drm/amd/display: Check for DSC support instead of ASIC revision

BugLink: https://bugs.launchpad.net/bugs/1928825
[ Upstream commit 349a19b2f1b01e713268c7de9944ad669ccdf369 ]

[why]
This check for ASIC revision is no longer useful and causes
lightup issues after a topology change in MST DSC scenario.
In this case, DSC configs should be recalculated for the new
topology. This check prevented that from happening on certain
ASICs that do, in fact, support DSC.

[how]
Change the ASIC revision to instead check if DSC is supported.

Signed-off-by: Eryk Brol <eryk.brol@amd.com>
Acked-by: Bindu Ramamurthy <bindu.r@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: Kamal Mostafa <kamal@canonical.com>
Signed-off-by: Stefan Bader <stefan.bader@canonical.com>
3 years agodrm/qxl: release shadow on shutdown
Gerd Hoffmann [Thu, 4 Feb 2021 14:57:06 +0000 (15:57 +0100)]
drm/qxl: release shadow on shutdown

BugLink: https://bugs.launchpad.net/bugs/1928825
[ Upstream commit 4ca77c513537700d3fae69030879f781dde1904c ]

In case we have a shadow surface on shutdown release
it so it doesn't leak.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Acked-by: Thomas Zimmermann <tzimmermann@suse.de>
Link: http://patchwork.freedesktop.org/patch/msgid/20210204145712.1531203-6-kraxel@redhat.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: Kamal Mostafa <kamal@canonical.com>
Signed-off-by: Stefan Bader <stefan.bader@canonical.com>
3 years agodrm: Added orientation quirk for OneGX1 Pro
Jared Baldridge [Wed, 20 Jan 2021 20:56:26 +0000 (12:56 -0800)]
drm: Added orientation quirk for OneGX1 Pro

BugLink: https://bugs.launchpad.net/bugs/1928825
[ Upstream commit 81ad7f9f78e4ff80e95be8282423f511b84f1166 ]

The OneGX1 Pro has a fairly unique combination of generic strings,
but we additionally match on the BIOS date just to be safe.

Signed-off-by: Jared Baldridge <jrb@expunge.us>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/41288ccb-1012-486b-81c1-a24c31850c91@www.fastmail.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: Kamal Mostafa <kamal@canonical.com>
Signed-off-by: Stefan Bader <stefan.bader@canonical.com>
3 years agobtrfs: convert logic BUG_ON()'s in replace_path to ASSERT()'s
Josef Bacik [Fri, 12 Mar 2021 20:25:21 +0000 (15:25 -0500)]
btrfs: convert logic BUG_ON()'s in replace_path to ASSERT()'s

BugLink: https://bugs.launchpad.net/bugs/1928825
[ Upstream commit 7a9213a93546e7eaef90e6e153af6b8fc7553f10 ]

A few BUG_ON()'s in replace_path are purely to keep us from making
logical mistakes, so replace them with ASSERT()'s.

Reviewed-by: Qu Wenruo <wqu@suse.com>
Signed-off-by: Josef Bacik <josef@toxicpanda.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: Kamal Mostafa <kamal@canonical.com>
Signed-off-by: Stefan Bader <stefan.bader@canonical.com>
3 years agoplatform/x86: intel_pmc_core: Don't use global pmcdev in quirks
David E. Box [Sat, 17 Apr 2021 03:12:44 +0000 (20:12 -0700)]
platform/x86: intel_pmc_core: Don't use global pmcdev in quirks

BugLink: https://bugs.launchpad.net/bugs/1928825
[ Upstream commit c9f86d6ca6b5e23d30d16ade4b9fff5b922a610a ]

The DMI callbacks, used for quirks, currently access the PMC by getting
the address a global pmc_dev struct. Instead, have the callbacks set a
global quirk specific variable. In probe, after calling dmi_check_system(),
pass pmc_dev to a function that will handle each quirk if its variable
condition is met. This allows removing the global pmc_dev later.

Signed-off-by: David E. Box <david.e.box@linux.intel.com>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Reviewed-by: Rajneesh Bhardwaj <irenic.rajneesh@gmail.com>
Link: https://lore.kernel.org/r/20210417031252.3020837-2-david.e.box@linux.intel.com
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: Kamal Mostafa <kamal@canonical.com>
Signed-off-by: Stefan Bader <stefan.bader@canonical.com>
3 years agocrypto: omap-aes - Fix PM reference leak on omap-aes.c
Shixin Liu [Thu, 8 Apr 2021 07:18:39 +0000 (15:18 +0800)]
crypto: omap-aes - Fix PM reference leak on omap-aes.c

BugLink: https://bugs.launchpad.net/bugs/1928825
[ Upstream commit 1f34cc4a8da34fbb250efb928f9b8c6fe7ee0642 ]

pm_runtime_get_sync will increment pm usage counter even it failed.
Forgetting to putting operation will result in reference leak here.
Fix it by replacing it with pm_runtime_resume_and_get to keep usage
counter balanced.

Signed-off-by: Shixin Liu <liushixin2@huawei.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: Kamal Mostafa <kamal@canonical.com>
Signed-off-by: Stefan Bader <stefan.bader@canonical.com>
3 years agocrypto: stm32/cryp - Fix PM reference leak on stm32-cryp.c
Shixin Liu [Thu, 8 Apr 2021 07:18:36 +0000 (15:18 +0800)]
crypto: stm32/cryp - Fix PM reference leak on stm32-cryp.c

BugLink: https://bugs.launchpad.net/bugs/1928825
[ Upstream commit 747bf30fd944f02f341b5f3bc7d97a13f2ae2fbe ]

pm_runtime_get_sync will increment pm usage counter even it failed.
Forgetting to putting operation will result in reference leak here.
Fix it by replacing it with pm_runtime_resume_and_get to keep usage
counter balanced.

Signed-off-by: Shixin Liu <liushixin2@huawei.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: Kamal Mostafa <kamal@canonical.com>
Signed-off-by: Stefan Bader <stefan.bader@canonical.com>
3 years agocrypto: stm32/hash - Fix PM reference leak on stm32-hash.c
Shixin Liu [Thu, 8 Apr 2021 07:18:35 +0000 (15:18 +0800)]
crypto: stm32/hash - Fix PM reference leak on stm32-hash.c

BugLink: https://bugs.launchpad.net/bugs/1928825
[ Upstream commit 1cb3ad701970e68f18a9e5d090baf2b1b703d729 ]

pm_runtime_get_sync will increment pm usage counter even it failed.
Forgetting to putting operation will result in reference leak here.
Fix it by replacing it with pm_runtime_resume_and_get to keep usage
counter balanced.

Signed-off-by: Shixin Liu <liushixin2@huawei.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: Kamal Mostafa <kamal@canonical.com>
Signed-off-by: Stefan Bader <stefan.bader@canonical.com>
3 years agophy: phy-twl4030-usb: Fix possible use-after-free in twl4030_usb_remove()
Yang Yingliang [Wed, 7 Apr 2021 09:27:16 +0000 (17:27 +0800)]
phy: phy-twl4030-usb: Fix possible use-after-free in twl4030_usb_remove()

BugLink: https://bugs.launchpad.net/bugs/1928825
[ Upstream commit e1723d8b87b73ab363256e7ca3af3ddb75855680 ]

This driver's remove path calls cancel_delayed_work(). However, that
function does not wait until the work function finishes. This means
that the callback function may still be running after the driver's
remove function has finished, which would result in a use-after-free.

Fix by calling cancel_delayed_work_sync(), which ensures that
the work is properly cancelled, no longer running, and unable
to re-schedule itself.

Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Yang Yingliang <yangyingliang@huawei.com>
Link: https://lore.kernel.org/r/20210407092716.3270248-1-yangyingliang@huawei.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: Kamal Mostafa <kamal@canonical.com>
Signed-off-by: Stefan Bader <stefan.bader@canonical.com>
3 years agointel_th: Consistency and off-by-one fix
Pavel Machek [Wed, 14 Apr 2021 17:12:49 +0000 (20:12 +0300)]
intel_th: Consistency and off-by-one fix

BugLink: https://bugs.launchpad.net/bugs/1928825
[ Upstream commit 18ffbc47d45a1489b664dd68fb3a7610a6e1dea3 ]

Consistently use "< ... +1" in for loops.

Fix of-by-one in for_each_set_bit().

Signed-off-by: Pavel Machek <pavel@denx.de>
Signed-off-by: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Link: https://lore.kernel.org/lkml/20190724095841.GA6952@amd/
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/20210414171251.14672-6-alexander.shishkin@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: Kamal Mostafa <kamal@canonical.com>
Signed-off-by: Stefan Bader <stefan.bader@canonical.com>
3 years agotty: n_gsm: check error while registering tty devices
Hillf Danton [Mon, 12 Apr 2021 03:57:58 +0000 (11:57 +0800)]
tty: n_gsm: check error while registering tty devices

BugLink: https://bugs.launchpad.net/bugs/1928825
[ Upstream commit 0a360e8b65d62fe1a994f0a8da4f8d20877b2100 ]

Add the error path for registering tty devices and roll back in case of error
in bid to avoid the UAF like the below one reported.

Plus syzbot reported general protection fault in cdev_del() on Sep 24, 2020
and both cases are down to the kobject_put() in tty_cdev_add().

 ------------[ cut here ]------------
 refcount_t: underflow; use-after-free.
 WARNING: CPU: 1 PID: 8923 at lib/refcount.c:28
 refcount_warn_saturate+0x1cf/0x210 -origin/lib/refcount.c:28
 Modules linked in:
 CPU: 1 PID: 8923 Comm: executor Not tainted 5.12.0-rc5+ #8
 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS
 1.13.0-1ubuntu1.1 04/01/2014
 RIP: 0010:refcount_warn_saturate+0x1cf/0x210 -origin/lib/refcount.c:28
 Code: 4f ff ff ff e8 32 fa b5 fe 48 c7 c7 3d f8 f6 86 e8 d6 ab c6 fe
 c6 05 7c 34 67 04 01 48 c7 c7 68 f8 6d 86 31 c0 e8 81 2e 9d fe <0f> 0b
 e9 22 ff ff ff e8 05 fa b5 fe 48 c7 c7 3e f8 f6 86 e8 a9 ab
 RSP: 0018:ffffc90001633c60 EFLAGS: 00010246
 RAX: 15d08b2e34b77800 RBX: 0000000000000003 RCX: ffff88804c056c80
 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
 RBP: 0000000000000003 R08: ffffffff813767aa R09: 0001ffffffffffff
 R10: 0001ffffffffffff R11: ffff88804c056c80 R12: ffff888040b7d000
 R13: ffff88804c206938 R14: ffff88804c206900 R15: ffff888041b18488
 FS:  00000000022c9940(0000) GS:ffff88807ec00000(0000) knlGS:0000000000000000
 CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
 CR2: 00007f9f9b122008 CR3: 0000000044b4b000 CR4: 0000000000750ee0
 PKRU: 55555554
 Call Trace:
  __refcount_sub_and_test -origin/./include/linux/refcount.h:283 [inline]
  __refcount_dec_and_test -origin/./include/linux/refcount.h:315 [inline]
  refcount_dec_and_test -origin/./include/linux/refcount.h:333 [inline]
  kref_put -origin/./include/linux/kref.h:64 [inline]
  kobject_put+0x17b/0x180 -origin/lib/kobject.c:753
  cdev_del+0x4b/0x50 -origin/fs/char_dev.c:597
  tty_unregister_device+0x99/0xd0 -origin/drivers/tty/tty_io.c:3343
  gsmld_detach_gsm -origin/drivers/tty/n_gsm.c:2409 [inline]
  gsmld_close+0x6c/0x140 -origin/drivers/tty/n_gsm.c:2478
  tty_ldisc_close -origin/drivers/tty/tty_ldisc.c:488 [inline]
  tty_ldisc_kill -origin/drivers/tty/tty_ldisc.c:636 [inline]
  tty_ldisc_release+0x1b6/0x400 -origin/drivers/tty/tty_ldisc.c:809
  tty_release_struct+0x19/0xb0 -origin/drivers/tty/tty_io.c:1714
  tty_release+0x9ad/0xa00 -origin/drivers/tty/tty_io.c:1885
  __fput+0x260/0x4e0 -origin/fs/file_table.c:280
  ____fput+0x11/0x20 -origin/fs/file_table.c:313
  task_work_run+0x8e/0x110 -origin/kernel/task_work.c:140
  tracehook_notify_resume -origin/./include/linux/tracehook.h:189 [inline]
  exit_to_user_mode_loop -origin/kernel/entry/common.c:174 [inline]
  exit_to_user_mode_prepare+0x16b/0x1a0 -origin/kernel/entry/common.c:208
  __syscall_exit_to_user_mode_work -origin/kernel/entry/common.c:290 [inline]
  syscall_exit_to_user_mode+0x20/0x40 -origin/kernel/entry/common.c:301
  do_syscall_64+0x45/0x80 -origin/arch/x86/entry/common.c:56
  entry_SYSCALL_64_after_hwframe+0x44/0xae

Reported-by: syzbot+c49fe6089f295a05e6f8@syzkaller.appspotmail.com
Reported-and-tested-by: Hao Sun <sunhao.th@gmail.com>
Signed-off-by: Hillf Danton <hdanton@sina.com>
Link: https://lore.kernel.org/r/20210412035758.1974-1-hdanton@sina.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: Kamal Mostafa <kamal@canonical.com>
Signed-off-by: Stefan Bader <stefan.bader@canonical.com>
3 years agousb: core: hub: Fix PM reference leak in usb_port_resume()
Bixuan Cui [Thu, 8 Apr 2021 13:08:31 +0000 (21:08 +0800)]
usb: core: hub: Fix PM reference leak in usb_port_resume()

BugLink: https://bugs.launchpad.net/bugs/1928825
[ Upstream commit 025f97d188006eeee4417bb475a6878d1e0eed3f ]

pm_runtime_get_sync will increment pm usage counter even it failed.
thus a pairing decrement is needed.
Fix it by replacing it with pm_runtime_resume_and_get to keep usage
counter balanced.

Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Bixuan Cui <cuibixuan@huawei.com>
Link: https://lore.kernel.org/r/20210408130831.56239-1-cuibixuan@huawei.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: Kamal Mostafa <kamal@canonical.com>
Signed-off-by: Stefan Bader <stefan.bader@canonical.com>
3 years agousb: musb: fix PM reference leak in musb_irq_work()
Bixuan Cui [Thu, 8 Apr 2021 09:18:36 +0000 (17:18 +0800)]
usb: musb: fix PM reference leak in musb_irq_work()

BugLink: https://bugs.launchpad.net/bugs/1928825
[ Upstream commit 9535b99533904e9bc1607575aa8e9539a55435d7 ]

pm_runtime_get_sync will increment pm usage counter even it failed.
thus a pairing decrement is needed.
Fix it by replacing it with pm_runtime_resume_and_get to keep usage
counter balanced.

Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Bixuan Cui <cuibixuan@huawei.com>
Link: https://lore.kernel.org/r/20210408091836.55227-1-cuibixuan@huawei.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: Kamal Mostafa <kamal@canonical.com>
Signed-off-by: Stefan Bader <stefan.bader@canonical.com>
3 years agospi: qup: fix PM reference leak in spi_qup_remove()
Wang Li [Fri, 9 Apr 2021 09:54:58 +0000 (09:54 +0000)]
spi: qup: fix PM reference leak in spi_qup_remove()

BugLink: https://bugs.launchpad.net/bugs/1928825
[ Upstream commit cec77e0a249892ceb10061bf17b63f9fb111d870 ]

pm_runtime_get_sync will increment pm usage counter even it failed.
Forgetting to putting operation will result in reference leak here.
Fix it by replacing it with pm_runtime_resume_and_get to keep usage
counter balanced.

Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Wang Li <wangli74@huawei.com>
Reviewed-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Link: https://lore.kernel.org/r/20210409095458.29921-1-wangli74@huawei.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: Kamal Mostafa <kamal@canonical.com>
Signed-off-by: Stefan Bader <stefan.bader@canonical.com>
3 years agospi: omap-100k: Fix reference leak to master
Wei Yongjun [Fri, 9 Apr 2021 08:29:54 +0000 (08:29 +0000)]
spi: omap-100k: Fix reference leak to master

BugLink: https://bugs.launchpad.net/bugs/1928825
[ Upstream commit a23faea76d4cf5f75decb574491e66f9ecd707e7 ]

Call spi_master_get() holds the reference count to master device, thus
we need an additional spi_master_put() call to reduce the reference
count, otherwise we will leak a reference to master.

This commit fix it by removing the unnecessary spi_master_get().

Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com>
Link: https://lore.kernel.org/r/20210409082954.2906933-1-weiyongjun1@huawei.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: Kamal Mostafa <kamal@canonical.com>
Signed-off-by: Stefan Bader <stefan.bader@canonical.com>
3 years agospi: dln2: Fix reference leak to master
Wei Yongjun [Fri, 9 Apr 2021 08:29:55 +0000 (08:29 +0000)]
spi: dln2: Fix reference leak to master

BugLink: https://bugs.launchpad.net/bugs/1928825
[ Upstream commit 9b844b087124c1538d05f40fda8a4fec75af55be ]

Call spi_master_get() holds the reference count to master device, thus
we need an additional spi_master_put() call to reduce the reference
count, otherwise we will leak a reference to master.

This commit fix it by removing the unnecessary spi_master_get().

Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com>
Link: https://lore.kernel.org/r/20210409082955.2907950-1-weiyongjun1@huawei.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: Kamal Mostafa <kamal@canonical.com>
Signed-off-by: Stefan Bader <stefan.bader@canonical.com>
3 years agoxhci: fix potential array out of bounds with several interrupters
Mathias Nyman [Tue, 6 Apr 2021 07:02:07 +0000 (10:02 +0300)]
xhci: fix potential array out of bounds with several interrupters

BugLink: https://bugs.launchpad.net/bugs/1928825
[ Upstream commit 286fd02fd54b6acab65809549cf5fb3f2a886696 ]

The Max Interrupters supported by the controller is given in a 10bit
wide bitfield, but the driver uses a fixed 128 size array to index these
interrupters.

Klockwork reports a possible array out of bounds case which in theory
is possible. In practice this hasn't been hit as a common number of Max
Interrupters for new controllers is 8, not even close to 128.

This needs to be fixed anyway

Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Link: https://lore.kernel.org/r/20210406070208.3406266-4-mathias.nyman@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: Kamal Mostafa <kamal@canonical.com>
Signed-off-by: Stefan Bader <stefan.bader@canonical.com>
3 years agoxhci: check control context is valid before dereferencing it.
Mathias Nyman [Tue, 6 Apr 2021 07:02:06 +0000 (10:02 +0300)]
xhci: check control context is valid before dereferencing it.

BugLink: https://bugs.launchpad.net/bugs/1928825
[ Upstream commit 597899d2f7c5619c87185ee7953d004bd37fd0eb ]

Don't dereference ctrl_ctx before checking it's valid.
Issue reported by Klockwork

Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Link: https://lore.kernel.org/r/20210406070208.3406266-3-mathias.nyman@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: Kamal Mostafa <kamal@canonical.com>
Signed-off-by: Stefan Bader <stefan.bader@canonical.com>
3 years agousb: xhci-mtk: support quirk to disable usb2 lpm
Chunfeng Yun [Wed, 31 Mar 2021 09:05:53 +0000 (17:05 +0800)]
usb: xhci-mtk: support quirk to disable usb2 lpm

BugLink: https://bugs.launchpad.net/bugs/1928825
[ Upstream commit bee1f89aad2a51cd3339571bc8eadbb0dc88a683 ]

The xHCI driver support usb2 HW LPM by default, here add support
XHCI_HW_LPM_DISABLE quirk, then we can disable usb2 lpm when
need it.

Signed-off-by: Chunfeng Yun <chunfeng.yun@mediatek.com>
Link: https://lore.kernel.org/r/1617181553-3503-4-git-send-email-chunfeng.yun@mediatek.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: Kamal Mostafa <kamal@canonical.com>
Signed-off-by: Stefan Bader <stefan.bader@canonical.com>
3 years agoperf/arm_pmu_platform: Fix error handling
Robin Murphy [Fri, 26 Mar 2021 16:02:41 +0000 (16:02 +0000)]
perf/arm_pmu_platform: Fix error handling

BugLink: https://bugs.launchpad.net/bugs/1928825
[ Upstream commit e338cb6bef254821a8c095018fd27254d74bfd6a ]

If we're aborting after failing to register the PMU device,
we probably don't want to leak the IRQs that we've claimed.

Signed-off-by: Robin Murphy <robin.murphy@arm.com>
Link: https://lore.kernel.org/r/53031a607fc8412a60024bfb3bb8cd7141f998f5.1616774562.git.robin.murphy@arm.com
Signed-off-by: Will Deacon <will@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: Kamal Mostafa <kamal@canonical.com>
Signed-off-by: Stefan Bader <stefan.bader@canonical.com>
3 years agotee: optee: do not check memref size on return from Secure World
Jerome Forissier [Mon, 22 Mar 2021 10:40:37 +0000 (11:40 +0100)]
tee: optee: do not check memref size on return from Secure World

BugLink: https://bugs.launchpad.net/bugs/1928825
[ Upstream commit c650b8dc7a7910eb25af0aac1720f778b29e679d ]

When Secure World returns, it may have changed the size attribute of the
memory references passed as [in/out] parameters. The GlobalPlatform TEE
Internal Core API specification does not restrict the values that this
size can take. In particular, Secure World may increase the value to be
larger than the size of the input buffer to indicate that it needs more.

Therefore, the size check in optee_from_msg_param() is incorrect and
needs to be removed. This fixes a number of failed test cases in the
GlobalPlatform TEE Initial Configuratiom Test Suite v2_0_0_0-2017_06_09
when OP-TEE is compiled without dynamic shared memory support
(CFG_CORE_DYN_SHM=n).

Reviewed-by: Sumit Garg <sumit.garg@linaro.org>
Suggested-by: Jens Wiklander <jens.wiklander@linaro.org>
Signed-off-by: Jerome Forissier <jerome@forissier.org>
Signed-off-by: Jens Wiklander <jens.wiklander@linaro.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: Kamal Mostafa <kamal@canonical.com>
Signed-off-by: Stefan Bader <stefan.bader@canonical.com>
3 years agox86/build: Propagate $(CLANG_FLAGS) to $(REALMODE_FLAGS)
John Millikin [Fri, 26 Mar 2021 00:04:33 +0000 (17:04 -0700)]
x86/build: Propagate $(CLANG_FLAGS) to $(REALMODE_FLAGS)

BugLink: https://bugs.launchpad.net/bugs/1928825
[ Upstream commit 8abe7fc26ad8f28bfdf78adbed56acd1fa93f82d ]

When cross-compiling with Clang, the `$(CLANG_FLAGS)' variable
contains additional flags needed to build C and assembly sources
for the target platform. Normally this variable is automatically
included in `$(KBUILD_CFLAGS)' via the top-level Makefile.

The x86 real-mode makefile builds `$(REALMODE_CFLAGS)' from a
plain assignment and therefore drops the Clang flags. This causes
Clang to not recognize x86-specific assembler directives:

  arch/x86/realmode/rm/header.S:36:1: error: unknown directive
  .type real_mode_header STT_OBJECT ; .size real_mode_header, .-real_mode_header
  ^

Explicit propagation of `$(CLANG_FLAGS)' to `$(REALMODE_CFLAGS)',
which is inherited by real-mode make rules, fixes cross-compilation
with Clang for x86 targets.

Relevant flags:

* `--target' sets the target architecture when cross-compiling. This
  flag must be set for both compilation and assembly (`KBUILD_AFLAGS')
  to support architecture-specific assembler directives.

* `-no-integrated-as' tells clang to assemble with GNU Assembler
  instead of its built-in LLVM assembler. This flag is set by default
  unless `LLVM_IAS=1' is set, because the LLVM assembler can't yet
  parse certain GNU extensions.

Signed-off-by: John Millikin <john@john-millikin.com>
Signed-off-by: Nathan Chancellor <nathan@kernel.org>
Signed-off-by: Borislav Petkov <bp@suse.de>
Acked-by: Ard Biesheuvel <ardb@kernel.org>
Tested-by: Sedat Dilek <sedat.dilek@gmail.com>
Link: https://lkml.kernel.org/r/20210326000435.4785-2-nathan@kernel.org
Signed-off-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: Kamal Mostafa <kamal@canonical.com>
Signed-off-by: Stefan Bader <stefan.bader@canonical.com>
3 years agoPCI: PM: Do not read power state in pci_enable_device_flags()
Rafael J. Wysocki [Tue, 16 Mar 2021 15:51:40 +0000 (16:51 +0100)]
PCI: PM: Do not read power state in pci_enable_device_flags()

BugLink: https://bugs.launchpad.net/bugs/1928825
[ Upstream commit 4514d991d99211f225d83b7e640285f29f0755d0 ]

It should not be necessary to update the current_state field of
struct pci_dev in pci_enable_device_flags() before calling
do_pci_enable_device() for the device, because none of the
code between that point and the pci_set_power_state() call in
do_pci_enable_device() invoked later depends on it.

Moreover, doing that is actively harmful in some cases.  For example,
if the given PCI device depends on an ACPI power resource whose _STA
method initially returns 0 ("off"), but the config space of the PCI
device is accessible and the power state retrieved from the
PCI_PM_CTRL register is D0, the current_state field in the struct
pci_dev representing that device will get out of sync with the
power.state of its ACPI companion object and that will lead to
power management issues going forward.

To avoid such issues it is better to leave the current_state value
as is until it is changed to PCI_D0 by do_pci_enable_device() as
appropriate.  However, the power state of the device is not changed
to PCI_D0 if it is already enabled when pci_enable_device_flags()
gets called for it, so update its current_state in that case, but
use pci_update_current_state() covering platform PM too for that.

Link: https://lore.kernel.org/lkml/20210314000439.3138941-1-luzmaximilian@gmail.com/
Reported-by: Maximilian Luz <luzmaximilian@gmail.com>
Tested-by: Maximilian Luz <luzmaximilian@gmail.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Reviewed-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: Kamal Mostafa <kamal@canonical.com>
Signed-off-by: Stefan Bader <stefan.bader@canonical.com>
3 years agousb: xhci: Fix port minor revision
Thinh Nguyen [Thu, 11 Mar 2021 03:43:21 +0000 (19:43 -0800)]
usb: xhci: Fix port minor revision

BugLink: https://bugs.launchpad.net/bugs/1928825
[ Upstream commit 64364bc912c01b33bba6c22e3ccb849bfca96398 ]

Some hosts incorrectly use sub-minor version for minor version (i.e.
0x02 instead of 0x20 for bcdUSB 0x320 and 0x01 for bcdUSB 0x310).
Currently the xHCI driver works around this by just checking for minor
revision > 0x01 for USB 3.1 everywhere. With the addition of USB 3.2,
checking this gets a bit cumbersome. Since there is no USB release with
bcdUSB 0x301 to 0x309, we can assume that sub-minor version 01 to 09 is
incorrect. Let's try to fix this and use the minor revision that matches
with the USB/xHCI spec to help with the version checking within the
driver.

Acked-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Signed-off-by: Thinh Nguyen <Thinh.Nguyen@synopsys.com>
Link: https://lore.kernel.org/r/ed330e95a19dc367819c5b4d78bf7a541c35aa0a.1615432770.git.Thinh.Nguyen@synopsys.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: Kamal Mostafa <kamal@canonical.com>
Signed-off-by: Stefan Bader <stefan.bader@canonical.com>
3 years agousb: dwc3: gadget: Ignore EP queue requests during bus reset
Wesley Cheng [Fri, 19 Mar 2021 09:31:25 +0000 (02:31 -0700)]
usb: dwc3: gadget: Ignore EP queue requests during bus reset

BugLink: https://bugs.launchpad.net/bugs/1928825
[ Upstream commit 71ca43f30df9c642970f9dc9b2d6f463f4967e7b ]

The current dwc3_gadget_reset_interrupt() will stop any active
transfers, but only addresses blocking of EP queuing for while we are
coming from a disconnected scenario, i.e. after receiving the disconnect
event.  If the host decides to issue a bus reset on the device, the
connected parameter will still be set to true, allowing for EP queuing
to continue while we are disabling the functions.  To avoid this, set the
connected flag to false until the stop active transfers is complete.

Signed-off-by: Wesley Cheng <wcheng@codeaurora.org>
Link: https://lore.kernel.org/r/1616146285-19149-3-git-send-email-wcheng@codeaurora.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: Kamal Mostafa <kamal@canonical.com>
Signed-off-by: Stefan Bader <stefan.bader@canonical.com>
3 years agousb: gadget: f_uac1: validate input parameters
Ruslan Bilovol [Mon, 1 Mar 2021 11:49:34 +0000 (13:49 +0200)]
usb: gadget: f_uac1: validate input parameters

BugLink: https://bugs.launchpad.net/bugs/1928825
[ Upstream commit a59c68a6a3d1b18e2494f526eb19893a34fa6ec6 ]

Currently user can configure UAC1 function with
parameters that violate UAC1 spec or are not supported
by UAC1 gadget implementation.

This can lead to incorrect behavior if such gadget
is connected to the host - like enumeration failure
or other issues depending on host's UAC1 driver
implementation, bringing user to a long hours
of debugging the issue.

Instead of silently accept these parameters, throw
an error if they are not valid.

Signed-off-by: Ruslan Bilovol <ruslan.bilovol@gmail.com>
Link: https://lore.kernel.org/r/1614599375-8803-5-git-send-email-ruslan.bilovol@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: Kamal Mostafa <kamal@canonical.com>
Signed-off-by: Stefan Bader <stefan.bader@canonical.com>
3 years agousb: gadget: f_uac2: validate input parameters
Ruslan Bilovol [Mon, 1 Mar 2021 11:49:33 +0000 (13:49 +0200)]
usb: gadget: f_uac2: validate input parameters

BugLink: https://bugs.launchpad.net/bugs/1928825
[ Upstream commit 3713d5ceb04d5ab6a5e2b86dfca49170053f3a5e ]

Currently user can configure UAC2 function with
parameters that violate UAC2 spec or are not supported
by UAC2 gadget implementation.

This can lead to incorrect behavior if such gadget
is connected to the host - like enumeration failure
or other issues depending on host's UAC2 driver
implementation, bringing user to a long hours
of debugging the issue.

Instead of silently accept these parameters, throw
an error if they are not valid.

Signed-off-by: Ruslan Bilovol <ruslan.bilovol@gmail.com>
Link: https://lore.kernel.org/r/1614599375-8803-4-git-send-email-ruslan.bilovol@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: Kamal Mostafa <kamal@canonical.com>
Signed-off-by: Stefan Bader <stefan.bader@canonical.com>
3 years agogenirq/matrix: Prevent allocation counter corruption
Vitaly Kuznetsov [Fri, 19 Mar 2021 11:18:23 +0000 (12:18 +0100)]
genirq/matrix: Prevent allocation counter corruption

BugLink: https://bugs.launchpad.net/bugs/1928825
[ Upstream commit c93a5e20c3c2dabef8ea360a3d3f18c6f68233ab ]

When irq_matrix_free() is called for an unallocated vector the
managed_allocated and total_allocated counters get out of sync with the
real state of the matrix. Later, when the last interrupt is freed, these
counters will underflow resulting in UINTMAX because the counters are
unsigned.

While this is certainly a problem of the calling code, this can be catched
in the allocator by checking the allocation bit for the to be freed vector
which simplifies debugging.

An example of the problem described above:
https://lore.kernel.org/lkml/20210318192819.636943062@linutronix.de/

Add the missing sanity check and emit a warning when it triggers.

Suggested-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Link: https://lore.kernel.org/r/20210319111823.1105248-1-vkuznets@redhat.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: Kamal Mostafa <kamal@canonical.com>
Signed-off-by: Stefan Bader <stefan.bader@canonical.com>
3 years agousb: webcam: Invalid size of Processing Unit Descriptor
Pawel Laszczak [Mon, 15 Mar 2021 07:17:48 +0000 (08:17 +0100)]
usb: webcam: Invalid size of Processing Unit Descriptor

BugLink: https://bugs.launchpad.net/bugs/1928825
[ Upstream commit 6a154ec9ef6762c774cd2b50215c7a8f0f08a862 ]

According with USB Device Class Definition for Video Device the
Processing Unit Descriptor bLength should be 12 (10 + bmControlSize),
but it has 11.

Invalid length caused that Processing Unit Descriptor Test Video form
CV tool failed. To fix this issue patch adds bmVideoStandards into
uvc_processing_unit_descriptor structure.

The bmVideoStandards field was added in UVC 1.1 and it wasn't part of
UVC 1.0a.

Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Pawel Laszczak <pawell@cadence.com>
Reviewed-by: Peter Chen <peter.chen@kernel.org>
Link: https://lore.kernel.org/r/20210315071748.29706-1-pawell@gli-login.cadence.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: Kamal Mostafa <kamal@canonical.com>
Signed-off-by: Stefan Bader <stefan.bader@canonical.com>
3 years agousb: gadget: uvc: add bInterval checking for HS mode
Pawel Laszczak [Mon, 8 Mar 2021 12:53:38 +0000 (13:53 +0100)]
usb: gadget: uvc: add bInterval checking for HS mode

BugLink: https://bugs.launchpad.net/bugs/1928825
[ Upstream commit 26adde04acdff14a1f28d4a5dce46a8513a3038b ]

Patch adds extra checking for bInterval passed by configfs.
The 5.6.4 chapter of USB Specification (rev. 2.0) say:
"A high-bandwidth endpoint must specify a period of 1x125 µs
(i.e., a bInterval value of 1)."

The issue was observed during testing UVC class on CV.
I treat this change as improvement because we can control
bInterval by configfs.

Reviewed-by: Peter Chen <peter.chen@kernel.org>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Pawel Laszczak <pawell@cadence.com>
Link: https://lore.kernel.org/r/20210308125338.4824-1-pawell@gli-login.cadence.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: Kamal Mostafa <kamal@canonical.com>
Signed-off-by: Stefan Bader <stefan.bader@canonical.com>
3 years agocrypto: qat - fix unmap invalid dma address
Hui Tang [Fri, 5 Mar 2021 06:35:01 +0000 (14:35 +0800)]
crypto: qat - fix unmap invalid dma address

BugLink: https://bugs.launchpad.net/bugs/1928825
[ Upstream commit 792b32fad548281e1b7fe14df9063a96c54b32a2 ]

'dma_mapping_error' return a negative value if 'dma_addr' is equal to
'DMA_MAPPING_ERROR' not zero, so fix initialization of 'dma_addr'.

Signed-off-by: Hui Tang <tanghui20@huawei.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: Kamal Mostafa <kamal@canonical.com>
Signed-off-by: Stefan Bader <stefan.bader@canonical.com>
3 years agocrypto: api - check for ERR pointers in crypto_destroy_tfm()
Ard Biesheuvel [Tue, 2 Mar 2021 20:33:03 +0000 (21:33 +0100)]
crypto: api - check for ERR pointers in crypto_destroy_tfm()

BugLink: https://bugs.launchpad.net/bugs/1928825
[ Upstream commit 83681f2bebb34dbb3f03fecd8f570308ab8b7c2c ]

Given that crypto_alloc_tfm() may return ERR pointers, and to avoid
crashes on obscure error paths where such pointers are presented to
crypto_destroy_tfm() (such as [0]), add an ERR_PTR check there
before dereferencing the second argument as a struct crypto_tfm
pointer.

[0] https://lore.kernel.org/linux-crypto/000000000000de949705bc59e0f6@google.com/

Reported-by: syzbot+12cf5fbfdeba210a89dd@syzkaller.appspotmail.com
Reviewed-by: Eric Biggers <ebiggers@google.com>
Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: Kamal Mostafa <kamal@canonical.com>
Signed-off-by: Stefan Bader <stefan.bader@canonical.com>
3 years agospi: ath79: remove spi-master setup and cleanup assignment
David Bauer [Wed, 3 Mar 2021 16:08:37 +0000 (17:08 +0100)]
spi: ath79: remove spi-master setup and cleanup assignment

BugLink: https://bugs.launchpad.net/bugs/1928825
[ Upstream commit ffb597b2bd3cd78b9bfb68f536743cd46dbb2cc4 ]

This removes the assignment of setup and cleanup functions for the ath79
target. Assigning the setup-method will lead to 'setup_transfer' not
being assigned in spi_bitbang_init. Because of this, performing any
TX/RX operation will lead to a kernel oops.

Also drop the redundant cleanup assignment, as it's also assigned in
spi_bitbang_init.

Signed-off-by: David Bauer <mail@david-bauer.net>
Link: https://lore.kernel.org/r/20210303160837.165771-2-mail@david-bauer.net
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: Kamal Mostafa <kamal@canonical.com>
Signed-off-by: Stefan Bader <stefan.bader@canonical.com>
3 years agospi: ath79: always call chipselect function
David Bauer [Wed, 3 Mar 2021 16:08:36 +0000 (17:08 +0100)]
spi: ath79: always call chipselect function

BugLink: https://bugs.launchpad.net/bugs/1928825
[ Upstream commit 19e2132174583beb90c1bd3e9c842bc6d5c944d1 ]

spi-bitbang has to call the chipselect function on the ath79 SPI driver
in order to communicate with the SPI slave device, as the ath79 SPI
driver has three dedicated chipselect lines but can also be used with
GPIOs for the CS lines.

Fixes commit 4a07b8bcd503 ("spi: bitbang: Make chipselect callback optional")

Signed-off-by: David Bauer <mail@david-bauer.net>
Link: https://lore.kernel.org/r/20210303160837.165771-1-mail@david-bauer.net
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: Kamal Mostafa <kamal@canonical.com>
Signed-off-by: Stefan Bader <stefan.bader@canonical.com>
3 years agostaging: wimax/i2400m: fix byte-order issue
karthik alapati [Sun, 21 Feb 2021 15:31:05 +0000 (21:01 +0530)]
staging: wimax/i2400m: fix byte-order issue

BugLink: https://bugs.launchpad.net/bugs/1928825
[ Upstream commit 0c37baae130df39b19979bba88bde2ee70a33355 ]

fix sparse byte-order warnings by converting host byte-order
type to __le16 byte-order types before assigning to hdr.length

Signed-off-by: karthik alapati <mail@karthek.com>
Link: https://lore.kernel.org/r/0ae5c5c4c646506d8be871e7be5705542671a1d5.1613921277.git.mail@karthek.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: Kamal Mostafa <kamal@canonical.com>
Signed-off-by: Stefan Bader <stefan.bader@canonical.com>
3 years agobus: ti-sysc: Probe for l4_wkup and l4_cfg interconnect devices first
Tony Lindgren [Mon, 8 Mar 2021 09:35:07 +0000 (11:35 +0200)]
bus: ti-sysc: Probe for l4_wkup and l4_cfg interconnect devices first

BugLink: https://bugs.launchpad.net/bugs/1928825
[ Upstream commit 4700a00755fb5a4bb5109128297d6fd2d1272ee6 ]

We want to probe l4_wkup and l4_cfg interconnect devices first to avoid
issues with missing resources. Otherwise we attempt to probe l4_per
devices first causing pointless deferred probe and also annoyingh
renumbering of the MMC devices for example.

Signed-off-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: Kamal Mostafa <kamal@canonical.com>
Signed-off-by: Stefan Bader <stefan.bader@canonical.com>