John Fastabend [Thu, 17 May 2018 21:06:40 +0000 (14:06 -0700)]
bpf: parse and verdict prog attach may race with bpf map update
In the sockmap design BPF programs (SK_SKB_STREAM_PARSER,
SK_SKB_STREAM_VERDICT and SK_MSG_VERDICT) are attached to the sockmap
map type and when a sock is added to the map the programs are used by
the socket. However, sockmap updates from both userspace and BPF
programs can happen concurrently with the attach and detach of these
programs.
To resolve this we use the bpf_prog_inc_not_zero and a READ_ONCE()
primitive to ensure the program pointer is not refeched and
possibly NULL'd before the refcnt increment. This happens inside
a RCU critical section so although the pointer reference in the map
object may be NULL (by a concurrent detach operation) the reference
from READ_ONCE will not be free'd until after grace period. This
ensures the object returned by READ_ONCE() is valid through the
RCU criticl section and safe to use as long as we "know" it may
be free'd shortly.
Daniel spotted a case in the sock update API where instead of using
the READ_ONCE() program reference we used the pointer from the
original map, stab->bpf_{verdict|parse|txmsg}. The problem with this
is the logic checks the object returned from the READ_ONCE() is not
NULL and then tries to reference the object again but using the
above map pointer, which may have already been NULL'd by a parallel
detach operation. If this happened bpf_porg_inc_not_zero could
dereference a NULL pointer.
Fix this by using variable returned by READ_ONCE() that is checked
for NULL.
Fixes: 2f857d04601a ("bpf: sockmap, remove STRPARSER map_flags and add multi-map support") Reported-by: Daniel Borkmann <daniel@iogearbox.net> Signed-off-by: John Fastabend <john.fastabend@gmail.com> Acked-by: Martin KaFai Lau <kafai@fb.com> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
John Fastabend [Thu, 17 May 2018 21:06:35 +0000 (14:06 -0700)]
bpf: sockmap update rollback on error can incorrectly dec prog refcnt
If the user were to only attach one of the parse or verdict programs
then it is possible a subsequent sockmap update could incorrectly
decrement the refcnt on the program. This happens because in the
rollback logic, after an error, we have to decrement the program
reference count when its been incremented. However, we only increment
the program reference count if the user has both a verdict and a
parse program. The reason for this is because, at least at the
moment, both are required for any one to be meaningful. The problem
fixed here is in the rollback path we decrement the program refcnt
even if only one existing. But we never incremented the refcnt in
the first place creating an imbalance.
This patch fixes the error path to handle this case.
Fixes: 2f857d04601a ("bpf: sockmap, remove STRPARSER map_flags and add multi-map support") Reported-by: Daniel Borkmann <daniel@iogearbox.net> Signed-off-by: John Fastabend <john.fastabend@gmail.com> Acked-by: Martin KaFai Lau <kafai@fb.com> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
selftests/bpf: check return value of fopen in test_verifier.c
Commit 0a6748740368 ("selftests/bpf: Only run tests if !bpf_disabled")
forgot to check return value of fopen.
This caused some confusion, when running test_verifier (from
tools/testing/selftests/bpf/) on an older kernel (< v4.4) as it will
simply seqfault.
This fix avoids the segfault and prints an error, but allow program to
continue. Given the sysctl was introduced in 1be7f75d1668 ("bpf:
enable non-root eBPF programs"), we know that the running kernel
cannot support unpriv, thus continue with unpriv_disabled = true.
Fixes: 0a6748740368 ("selftests/bpf: Only run tests if !bpf_disabled") Signed-off-by: Jesper Dangaard Brouer <brouer@redhat.com> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
William Tu [Thu, 17 May 2018 00:24:32 +0000 (17:24 -0700)]
erspan: fix invalid erspan version.
ERSPAN only support version 1 and 2. When packets send to an
erspan device which does not have proper version number set,
drop the packet. In real case, we observe multicast packets
sent to the erspan pernet device, erspan0, which does not have
erspan version configured.
Reported-by: Greg Rose <gvrose8192@gmail.com> Signed-off-by: William Tu <u9012063@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
David S. Miller [Thu, 17 May 2018 18:57:20 +0000 (14:57 -0400)]
Merge branch 'ibmvnic-Fix-bugs-and-memory-leaks'
Thomas Falcon says:
====================
ibmvnic: Fix bugs and memory leaks
This is a small patch series fixing up some bugs and memory leaks
in the ibmvnic driver. The first fix frees up previously allocated
memory that should be freed in case of an error. The second fixes
a reset case that was failing due to TX/RX queue IRQ's being
erroneously disabled without being enabled again. The final patch
fixes incorrect reallocated of statistics buffers during a device
reset, resulting in loss of statistics information and a memory leak.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Thomas Falcon [Wed, 16 May 2018 20:49:05 +0000 (15:49 -0500)]
ibmvnic: Fix statistics buffers memory leak
Move initialization of statistics buffers from ibmvnic_init function
into ibmvnic_probe. In the current state, ibmvnic_init will be called
again during a device reset, resulting in the allocation of new
buffers without freeing the old ones.
Signed-off-by: Thomas Falcon <tlfalcon@linux.vnet.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Thomas Falcon [Wed, 16 May 2018 20:49:04 +0000 (15:49 -0500)]
ibmvnic: Fix non-fatal firmware error reset
It is not necessary to disable interrupt lines here during a reset
to handle a non-fatal firmware error. Move that call within the code
block that handles the other cases that do require interrupts to be
disabled and re-enabled.
Signed-off-by: Thomas Falcon <tlfalcon@linux.vnet.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
David Ahern [Wed, 16 May 2018 20:36:40 +0000 (13:36 -0700)]
net/ipv4: Initialize proto and ports in flow struct
Updating the FIB tracepoint for the recent change to allow rules using
the protocol and ports exposed a few places where the entries in the flow
struct are not initialized.
For __fib_validate_source add the call to fib4_rules_early_flow_dissect
since it is invoked for the input path. For netfilter, add the memset on
the flow struct to avoid future problems like this. In ip_route_input_slow
need to set the fields if the skb dissection does not happen.
Fixes: bfff4862653b ("net: fib_rules: support for match on ip_proto, sport and dport") Signed-off-by: David Ahern <dsahern@gmail.com> Acked-by: Roopa Prabhu <roopa@cumulusnetworks.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Jason Wang [Wed, 16 May 2018 12:39:33 +0000 (20:39 +0800)]
tuntap: fix use after free during release
After commit b196d88aba8a ("tun: fix use after free for ptr_ring") we
need clean up tx ring during release(). But unfortunately, it tries to
do the cleanup blindly after socket were destroyed which will lead
another use-after-free. Fix this by doing the cleanup before dropping
the last reference of the socket in __tun_detach().
Reported-by: Andrei Vagin <avagin@virtuozzo.com> Acked-by: Andrei Vagin <avagin@virtuozzo.com> Fixes: b196d88aba8a ("tun: fix use after free for ptr_ring") Signed-off-by: Jason Wang <jasowang@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
David S. Miller [Wed, 16 May 2018 18:52:30 +0000 (14:52 -0400)]
Merge branch 'qed-LL2-fixes'
Michal Kalderon says:
====================
qed: LL2 fixes
This series fixes some issues in ll2 related to synchronization
and resource freeing
====================
Signed-off-by: Ariel Elior <Ariel.Elior@cavium.com> Signed-off-by: Michal Kalderon <Michal.Kalderon@cavium.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Michal Kalderon [Wed, 16 May 2018 11:44:40 +0000 (14:44 +0300)]
qed: Fix LL2 race during connection terminate
Stress on qedi/qedr load unload lead to list_del corruption.
This is due to ll2 connection terminate freeing resources without
verifying that no more ll2 processing will occur.
This patch unregisters the ll2 status block before terminating
the connection to assure this race does not occur.
Fixes: 1d6cff4fca4366 ("qed: Add iSCSI out of order packet handling") Signed-off-by: Ariel Elior <Ariel.Elior@cavium.com> Signed-off-by: Michal Kalderon <Michal.Kalderon@cavium.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Michal Kalderon [Wed, 16 May 2018 11:44:39 +0000 (14:44 +0300)]
qed: Fix possibility of list corruption during rmmod flows
The ll2 flows of flushing the txq/rxq need to be synchronized with the
regular fp processing. Caused list corruption during load/unload stress
tests.
Fixes: 0a7fb11c23c0f ("qed: Add Light L2 support") Signed-off-by: Ariel Elior <Ariel.Elior@cavium.com> Signed-off-by: Michal Kalderon <Michal.Kalderon@cavium.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Michal Kalderon [Wed, 16 May 2018 11:44:38 +0000 (14:44 +0300)]
qed: LL2 flush isles when connection is closed
Driver should free all pending isles once it gets a FLUSH cqe from FW.
Part of iSCSI out of order flow.
Fixes: 1d6cff4fca4366 ("qed: Add iSCSI out of order packet handling") Signed-off-by: Ariel Elior <Ariel.Elior@cavium.com> Signed-off-by: Michal Kalderon <Michal.Kalderon@cavium.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Davide Caratti [Wed, 16 May 2018 10:54:29 +0000 (12:54 +0200)]
net/sched: fix refcnt leak in the error path of tcf_vlan_init()
Similarly to what was done with commit a52956dfc503 ("net sched actions:
fix refcnt leak in skbmod"), fix the error path of tcf_vlan_init() to avoid
refcnt leaks when wrong value of TCA_VLAN_PUSH_VLAN_PROTOCOL is given.
Fixes: 5026c9b1bafc ("net sched: vlan action fix late binding") CC: Roman Mashak <mrv@mojatatu.com> Signed-off-by: Davide Caratti <dcaratti@redhat.com> Acked-by: Jamal Hadi Salim <jhs@mojatatu.com> Signed-off-by: David S. Miller <davem@davemloft.net>
net: 8390: ne: Fix accidentally removed RBTX4927 support
The configuration settings for RBTX4927 were accidentally removed,
leading to a silently broken network interface.
Re-add the missing settings to fix this.
Fixes: 8eb97ff5a4ec941d ("net: 8390: remove m32r specific bits") Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: David S. Miller <davem@davemloft.net>
David S. Miller [Wed, 16 May 2018 18:11:23 +0000 (14:11 -0400)]
Merge branch 'dsa-bcm_sf2-CFP-fixes'
Florian Fainelli says:
====================
net: dsa: bcm_sf2: CFP fixes
This patch series fixes a number of usability issues with the SF2 Compact Field
Processor code:
- we would not be properly bound checking the location when we let the kernel
automatically place rules with RX_CLS_LOC_ANY
- when using IPv6 rules and user space specifies a location identifier we
would be off by one in what the chain ID (within the Broadcom tag) indicates
- it would be possible to delete one of the two slices of an IPv6 while leaving
the other one programming leading to various problems
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Florian Fainelli [Tue, 15 May 2018 23:01:25 +0000 (16:01 -0700)]
net: dsa: bcm_sf2: Fix IPv6 rule half deletion
It was possible to delete only one half of an IPv6, which would leave
the second half still programmed and possibly in use. Instead of
checking for the unused bitmap, we need to check the unique bitmap, and
refuse any deletion that does not match that criteria. We also need to
move that check from bcm_sf2_cfp_rule_del_one() into its caller:
bcm_sf2_cfp_rule_del() otherwise we would not be able to delete second
halves anymore that would not pass the first test.
Fixes: ba0696c22e7c ("net: dsa: bcm_sf2: Add support for IPv6 CFP rules") Signed-off-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Florian Fainelli [Tue, 15 May 2018 23:01:24 +0000 (16:01 -0700)]
net: dsa: bcm_sf2: Fix IPv6 rules and chain ID
We had several issues that would make the programming of IPv6 rules both
inconsistent and error prone:
- the chain ID that we would be asking the hardware to put in the
packet's Broadcom tag would be off by one, it would return one of the
two indexes, but not the one user-space specified
- when an user specified a particular location to insert a CFP rule at,
we would not be returning the same index, which would be confusing if
nothing else
- finally, like IPv4, it would be possible to overflow the last entry by
re-programming it
Fix this by swapping the usage of rule_index[0] and rule_index[1] where
relevant in order to return a consistent and correct user-space
experience.
Fixes: ba0696c22e7c ("net: dsa: bcm_sf2: Add support for IPv6 CFP rules") Signed-off-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Florian Fainelli [Tue, 15 May 2018 23:01:23 +0000 (16:01 -0700)]
net: dsa: bcm_sf2: Fix RX_CLS_LOC_ANY overwrite for last rule
When we let the kernel pick up a rule location with RX_CLS_LOC_ANY, we
would be able to overwrite the last rules because of a number of issues.
The IPv4 code path would not be checking that rule_index is within
bounds, and it would also only be allowed to pick up rules from range
0..126 instead of the full 0..127 range. This would lead us to allow
overwriting the last rule when we let the kernel pick-up the location.
Fixes: 3306145866b6 ("net: dsa: bcm_sf2: Move IPv4 CFP processing to specific functions") Signed-off-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
The micrel KSZ9031 phy has a optional clock pin (CLK125_NDO) which can be
used as reference clock for the MAC unit. The clock signal must meet the
RGMII requirements to ensure the correct data transmission between the
MAC and the PHY. The KSZ9031 phy does not fulfill the duty cycle
requirement if the phy is configured as slave. For a complete
describtion look at the errata sheets: DS80000691D or DS80000692D.
The errata sheet recommends to force the phy into master mode whenever
there is a 1000Base-T link-up as work around. Only set the
"micrel,force-master" property if you use the phy reference clock provided
by CLK125_NDO pin as MAC reference clock in your application.
Attenation, this workaround is only usable if the link partner can
be configured to slave mode for 1000Base-T.
Signed-off-by: Markus Niebel <Markus.Niebel@tqs.de>
[m.felsch@pengutronix.de: fix dt-binding documentation]
[m.felsch@pengutronix.de: use already existing result var for read/write]
[m.felsch@pengutronix.de: add error handling]
[m.felsch@pengutronix.de: add more comments] Signed-off-by: Marco Felsch <m.felsch@pengutronix.de> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
Saeed Mahameed [Mon, 14 May 2018 22:38:10 +0000 (15:38 -0700)]
net/mlx5: Fix build break when CONFIG_SMP=n
Avoid using the kernel's irq_descriptor and return IRQ vector affinity
directly from the driver.
This fixes the following build break when CONFIG_SMP=n
include/linux/mlx5/driver.h: In function ‘mlx5_get_vector_affinity_hint’:
include/linux/mlx5/driver.h:1299:13: error:
‘struct irq_desc’ has no member named ‘affinity_hint’
Fixes: 6082d9c9c94a ("net/mlx5: Fix mlx5_get_vector_affinity function") Signed-off-by: Saeed Mahameed <saeedm@mellanox.com> CC: Randy Dunlap <rdunlap@infradead.org> CC: Guenter Roeck <linux@roeck-us.net> CC: Thomas Gleixner <tglx@linutronix.de> Tested-by: Israel Rukshin <israelr@mellanox.com> Reported-by: kbuild test robot <lkp@intel.com> Reported-by: Randy Dunlap <rdunlap@infradead.org> Tested-by: Randy Dunlap <rdunlap@infradead.org> Acked-by: Thomas Gleixner <tglx@linutronix.de> Tested-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: David S. Miller <davem@davemloft.net>
Keefe Liu [Mon, 14 May 2018 11:38:09 +0000 (19:38 +0800)]
ipvlan: call netdevice notifier when master mac address changed
When master device's mac has been changed, the commit 32c10bbfe914 ("ipvlan: always use the current L2 addr of the
master") makes the IPVlan devices's mac changed also, but it
doesn't do related works such as flush the IPVlan devices's
arp table.
Signed-off-by: Keefe Liu <liuqifa@huawei.com> Signed-off-by: David S. Miller <davem@davemloft.net>
hpreg@vmware.com [Mon, 14 May 2018 12:14:49 +0000 (08:14 -0400)]
vmxnet3: use DMA memory barriers where required
The gen bits must be read first from (resp. written last to) DMA memory.
The proper way to enforce this on Linux is to call dma_rmb() (resp.
dma_wmb()).
Signed-off-by: Regis Duchesne <hpreg@vmware.com> Acked-by: Ronak Doshi <doshir@vmware.com> Signed-off-by: David S. Miller <davem@davemloft.net>
hpreg@vmware.com [Mon, 14 May 2018 12:14:34 +0000 (08:14 -0400)]
vmxnet3: set the DMA mask before the first DMA map operation
The DMA mask must be set before, not after, the first DMA map operation, or
the first DMA map operation could in theory fail on some systems.
Fixes: b0eb57cb97e78 ("VMXNET3: Add support for virtual IOMMU") Signed-off-by: Regis Duchesne <hpreg@vmware.com> Acked-by: Ronak Doshi <doshir@vmware.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Kumar Sanghvi [Mon, 14 May 2018 10:57:34 +0000 (16:27 +0530)]
cxgb4: Correct ntuple mask validation for hash filters
Earlier code of doing bitwise AND with field width bits was wrong.
Instead, simplify code to calculate ntuple_mask based on supplied
fields and then compare with mask configured in hw - which is the
correct and simpler way to validate ntuple mask.
Fixes: 3eb8b62d5a26 ("cxgb4: add support to create hash-filters via tc-flower offload") Signed-off-by: Kumar Sanghvi <kumaras@chelsio.com> Signed-off-by: Ganesh Goudar <ganeshgr@chelsio.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Eric Biggers [Mon, 14 May 2018 00:01:30 +0000 (17:01 -0700)]
net/smc: check for missing nlattrs in SMC_PNETID messages
It's possible to crash the kernel in several different ways by sending
messages to the SMC_PNETID generic netlink family that are missing the
expected attributes:
- Missing SMC_PNETID_NAME => null pointer dereference when comparing
names.
- Missing SMC_PNETID_ETHNAME => null pointer dereference accessing
smc_pnetentry::ndev.
- Missing SMC_PNETID_IBNAME => null pointer dereference accessing
smc_pnetentry::smcibdev.
- Missing SMC_PNETID_IBPORT => out of bounds array access to
smc_ib_device::pattr[-1].
Fix it by validating that all expected attributes are present and that
SMC_PNETID_IBPORT is nonzero.
Reported-by: syzbot+5cd61039dc9b8bfa6e47@syzkaller.appspotmail.com Fixes: 6812baabf24d ("smc: establish pnet table management") Cc: <stable@vger.kernel.org> # v4.11+ Signed-off-by: Eric Biggers <ebiggers@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Tarick Bedeir [Sun, 13 May 2018 23:38:45 +0000 (16:38 -0700)]
net/mlx4_core: Fix error handling in mlx4_init_port_info.
Avoid exiting the function with a lingering sysfs file (if the first
call to device_create_file() fails while the second succeeds), and avoid
calling devlink_port_unregister() twice.
In other words, either mlx4_init_port_info() succeeds and returns zero, or
it fails, returns non-zero, and requires no cleanup.
Fixes: 096335b3f983 ("mlx4_core: Allow dynamic MTU configuration for IB ports") Signed-off-by: Tarick Bedeir <tarick@google.com> Reviewed-by: Leon Romanovsky <leonro@mellanox.com> Reviewed-by: Tariq Toukan <tariqt@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Jason Wang [Fri, 11 May 2018 02:49:25 +0000 (10:49 +0800)]
tun: fix use after free for ptr_ring
We used to initialize ptr_ring during TUNSETIFF, this is because its
size depends on the tx_queue_len of netdevice. And we try to clean it
up when socket were detached from netdevice. A race were spotted when
trying to do uninit during a read which will lead a use after free for
pointer ring. Solving this by always initialize a zero size ptr_ring
in open() and do resizing during TUNSETIFF, and then we can safely do
cleanup during close(). With this, there's no need for the workaround
that was introduced by commit 4df0bfc79904 ("tun: fix a memory leak
for tfile->tx_array").
Reported-by: syzbot+e8b902c3c3fadf0a9dba@syzkaller.appspotmail.com Cc: Eric Dumazet <eric.dumazet@gmail.com> Cc: Cong Wang <xiyou.wangcong@gmail.com> Cc: Michael S. Tsirkin <mst@redhat.com> Fixes: 1576d9860599 ("tun: switch to use skb array for tx") Signed-off-by: Jason Wang <jasowang@redhat.com> Acked-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
The following pull-request contains BPF updates for your *net* tree.
The main changes are:
1) Fix nfp to allow zero-length BPF capabilities, meaning the nfp
capability parsing loop will otherwise exit early if the last
capability is zero length and therefore driver will fail to probe
with an error such as:
nfp: BPF capabilities left after parsing, parsed:92 total length:100
nfp: invalid BPF capabilities at offset:92
Fix from Jakub.
2) libbpf's bpf_object__open() may return IS_ERR_OR_NULL() and not
just an error. Fix libbpf's bpf_prog_load_xattr() to handle that
case as well, also from Jakub.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
The following patchset contains Netfilter/IPVS fixes for your net tree,
they are:
1) Fix handling of simultaneous open TCP connection in conntrack,
from Jozsef Kadlecsik.
2) Insufficient sanitify check of xtables extension names, from
Florian Westphal.
3) Skip unnecessary synchronize_rcu() call when transaction log
is already empty, from Florian Westphal.
4) Incorrect destination mac validation in ebt_stp, from Stephen
Hemminger.
5) xtables module reference counter leak in nft_compat, from
Florian Westphal.
6) Incorrect connection reference counting logic in IPVS
one-packet scheduler, from Julian Anastasov.
7) Wrong stats for 32-bits CPU in IPVS, also from Julian.
8) Calm down sparse error in netfilter core, also from Florian.
9) Use nla_strlcpy to fix compilation warning in nfnetlink_acct
and nfnetlink_cthelper, again from Florian.
10) Missing module alias in icmp and icmp6 xtables extensions,
from Florian Westphal.
11) Base chain statistics in nf_tables may be unset/null, from Florian.
12) Fix handling of large matchinfo size in nft_compat, this includes
one preparation for before this fix. From Florian.
13) Fix bogus EBUSY error when deleting chains due to incorrect reference
counting from the preparation phase of the two-phase commit protocol.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Michal Kalderon [Sun, 13 May 2018 17:54:06 +0000 (20:54 +0300)]
qede: Fix ref-cnt usage count
Rebooting while qedr is loaded with a VLAN interface present
results in unregister_netdevice waiting for the usage count
to become free.
The fix is that rdma devices should be removed before unregistering
the netdevice, to assure all references to ndev are decreased.
Fixes: cee9fbd8e2e9 ("qede: Add qedr framework") Signed-off-by: Ariel Elior <ariel.elior@cavium.com> Signed-off-by: Michal Kalderon <michal.kalderon@cavium.com> Signed-off-by: David S. Miller <davem@davemloft.net>
This driver supports EISA devices in addition to PCI devices, and relied
on the legacy behavior of the pci_dma* shims to pass on a NULL pointer
to the DMA API, and the DMA API being able to handle that. When the
NULL forwarding broke the EISA support got broken. Fix this by converting
to the DMA API instead of the legacy PCI shims.
Fixes: 4167b2ad ("PCI: Remove NULL device handling from PCI DMA API") Reported-by: tedheadster <tedheadster@gmail.com> Tested-by: tedheadster <tedheadster@gmail.com> Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: David S. Miller <davem@davemloft.net>
Willem de Bruijn [Fri, 11 May 2018 17:24:25 +0000 (13:24 -0400)]
packet: in packet_snd start writing at link layer allocation
Packet sockets allow construction of packets shorter than
dev->hard_header_len to accommodate protocols with variable length
link layer headers. These packets are padded to dev->hard_header_len,
because some device drivers interpret that as a minimum packet size.
packet_snd reserves dev->hard_header_len bytes on allocation.
SOCK_DGRAM sockets call skb_push in dev_hard_header() to ensure that
link layer headers are stored in the reserved range. SOCK_RAW sockets
do the same in tpacket_snd, but not in packet_snd.
Syzbot was able to send a zero byte packet to a device with massive
116B link layer header, causing padding to cross over into skb_shinfo.
Fix this by writing from the start of the llheader reserved range also
in the case of packet_snd/SOCK_RAW.
Update skb_set_network_header to the new offset. This also corrects
it for SOCK_DGRAM, where it incorrectly double counted reserve due to
the skb_push in dev_hard_header.
Fixes: 9ed988cd5915 ("packet: validate variable length ll headers") Reported-by: syzbot+71d74a5406d02057d559@syzkaller.appspotmail.com Signed-off-by: Willem de Bruijn <willemb@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Colin Ian King [Wed, 9 May 2018 12:22:56 +0000 (13:22 +0100)]
netfilter: nf_tables: fix memory leak on error exit return
Currently the -EBUSY error return path is not free'ing resources
allocated earlier, leaving a memory leak. Fix this by exiting via the
error exit label err5 that performs the necessary resource clean
up.
Detected by CoverityScan, CID#1432975 ("Resource leak")
Fixes: 9744a6fcefcb ("netfilter: nf_tables: check if same extensions are set when adding elements") Signed-off-by: Colin Ian King <colin.king@canonical.com> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
1) Verify lengths of keys provided by the user is AF_KEY, from Kevin
Easton.
2) Add device ID for BCM89610 PHY. Thanks to Bhadram Varka.
3) Add Spectre guards to some ATM code, courtesy of Gustavo A. R.
Silva.
4) Fix infinite loop in NSH protocol code. To Eric Dumazet we are most
grateful for this fix.
5) Line up /proc/net/netlink headers properly. This fix from YU Bo, we
do appreciate.
6) Use after free in TLS code. Once again we are blessed by the
honorable Eric Dumazet with this fix.
7) Fix regression in TLS code causing stalls on partial TLS records.
This fix is bestowed upon us by Andrew Tomt.
8) Deal with too small MTUs properly in LLC code, another great gift
from Eric Dumazet.
9) Handle cached route flushing properly wrt. MTU locking in ipv4, to
Hangbin Liu we give thanks for this.
10) Fix regression in SO_BINDTODEVIC handling wrt. UDP socket demux.
Paolo Abeni, he gave us this.
11) Range check coalescing parameters in mlx4 driver, thank you Moshe
Shemesh.
12) Some ipv6 ICMP error handling fixes in rxrpc, from our good brother
David Howells.
13) Fix kexec on mlx5 by freeing IRQs in shutdown path. Daniel Juergens,
you're the best!
14) Don't send bonding RLB updates to invalid MAC addresses. Debabrata
Benerjee saved us!
15) Uh oh, we were leaking in udp_sendmsg and ping_v4_sendmsg. The ship
is now water tight, thanks to Andrey Ignatov.
16) IPSEC memory leak in ixgbe from Colin Ian King, man we've got holes
everywhere!
17) Fix error path in tcf_proto_create, Jiri Pirko what would we do
without you!
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (92 commits)
net sched actions: fix refcnt leak in skbmod
net: sched: fix error path in tcf_proto_create() when modules are not configured
net sched actions: fix invalid pointer dereferencing if skbedit flags missing
ixgbe: fix memory leak on ipsec allocation
ixgbevf: fix ixgbevf_xmit_frame()'s return type
ixgbe: return error on unsupported SFP module when resetting
ice: Set rq_last_status when cleaning rq
ipv4: fix memory leaks in udp_sendmsg, ping_v4_sendmsg
mlxsw: core: Fix an error handling path in 'mlxsw_core_bus_device_register()'
bonding: send learning packets for vlans on slave
bonding: do not allow rlb updates to invalid mac
net/mlx5e: Err if asked to offload TC match on frag being first
net/mlx5: E-Switch, Include VF RDMA stats in vport statistics
net/mlx5: Free IRQs in shutdown path
rxrpc: Trace UDP transmission failure
rxrpc: Add a tracepoint to log ICMP/ICMP6 and error messages
rxrpc: Fix the min security level for kernel calls
rxrpc: Fix error reception on AF_INET6 sockets
rxrpc: Fix missing start of call timeout
qed: fix spelling mistake: "taskelt" -> "tasklet"
...
Linus Torvalds [Fri, 11 May 2018 20:56:43 +0000 (13:56 -0700)]
Merge tag 'nfs-for-4.17-2' of git://git.linux-nfs.org/projects/anna/linux-nfs
Pull NFS client fixes from Anna Schumaker:
"These patches fix both a possible corruption during NFSoRDMA MR
recovery, and a sunrpc tracepoint crash.
Additionally, Trond has a new email address to put in the MAINTAINERS
file"
* tag 'nfs-for-4.17-2' of git://git.linux-nfs.org/projects/anna/linux-nfs:
Change Trond's email address in MAINTAINERS
sunrpc: Fix latency trace point crashes
xprtrdma: Fix list corruption / DMAR errors during MR recovery
Roman Mashak [Fri, 11 May 2018 18:35:33 +0000 (14:35 -0400)]
net sched actions: fix refcnt leak in skbmod
When application fails to pass flags in netlink TLV when replacing
existing skbmod action, the kernel will leak refcnt:
$ tc actions get action skbmod index 1
total acts 0
action order 0: skbmod pipe set smac 00:11:22:33:44:55
index 1 ref 1 bind 0
For example, at this point a buggy application replaces the action with
index 1 with new smac 00:aa:22:33:44:55, it fails because of zero flags,
however refcnt gets bumped:
$ tc actions get actions skbmod index 1
total acts 0
action order 0: skbmod pipe set smac 00:11:22:33:44:55
index 1 ref 2 bind 0
$
Tha patch fixes this by calling tcf_idr_release() on existing actions.
Fixes: 86da71b57383d ("net_sched: Introduce skbmod action") Signed-off-by: Roman Mashak <mrv@mojatatu.com> Acked-by: Cong Wang <xiyou.wangcong@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Linus Torvalds [Fri, 11 May 2018 20:36:06 +0000 (13:36 -0700)]
Merge tag 'ceph-for-4.17-rc5' of git://github.com/ceph/ceph-client
Pull ceph fixes from Ilya Dryomov:
"These patches fix two long-standing bugs in the DIO code path, one of
which is a crash trivially triggerable with splice()"
* tag 'ceph-for-4.17-rc5' of git://github.com/ceph/ceph-client:
ceph: fix iov_iter issues in ceph_direct_read_write()
libceph: add osd_req_op_extent_osd_data_bvecs()
ceph: fix rsize/wsize capping in ceph_direct_read_write()
Jiri Pirko [Fri, 11 May 2018 15:45:32 +0000 (17:45 +0200)]
net: sched: fix error path in tcf_proto_create() when modules are not configured
In case modules are not configured, error out when tp->ops is null
and prevent later null pointer dereference.
Fixes: 33a48927c193 ("sched: push TC filter protocol creation into a separate function") Signed-off-by: Jiri Pirko <jiri@mellanox.com> Acked-by: Cong Wang <xiyou.wangcong@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Linus Torvalds [Fri, 11 May 2018 20:14:24 +0000 (13:14 -0700)]
Merge tag 'sh-for-4.17-fixes' of git://git.libc.org/linux-sh
Pull arch/sh fixes from Rich Felker:
"Fixes for critical regressions and a build failure.
The regressions were introduced in 4.15 and 4.17-rc1 and prevented
booting on affected systems"
* tag 'sh-for-4.17-fixes' of git://git.libc.org/linux-sh:
sh: switch to NO_BOOTMEM
sh: mm: Fix unprotected access to struct device
sh: fix build failure for J2 cpu with SMP disabled
Linus Torvalds [Fri, 11 May 2018 20:09:04 +0000 (13:09 -0700)]
Merge tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux
Pull arm64 fixes from Will Deacon:
"There's a small memblock accounting problem when freeing the initrd
and a Spectre-v2 mitigation for NVIDIA Denver CPUs which just requires
a match on the CPU ID register.
Summary:
- Mitigate Spectre-v2 for NVIDIA Denver CPUs
- Free memblocks corresponding to freed initrd area"
* tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux:
arm64: capabilities: Add NVIDIA Denver CPU to bp_harden list
arm64: Add MIDR encoding for NVIDIA CPUs
arm64: To remove initrd reserved area entry from memblock
Linus Torvalds [Fri, 11 May 2018 20:07:22 +0000 (13:07 -0700)]
Merge tag 'powerpc-4.17-5' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux
Pull powerpc fixes from Michael Ellerman:
"One fix for an actual regression, the change to the SYSCALL_DEFINE
wrapper broke FTRACE_SYSCALLS for us due to a name mismatch. There's
also another commit to the same code to make sure we match all our
syscalls with various prefixes.
And then just one minor build fix, and the removal of an unused
variable that was removed and then snuck back in due to some rebasing.
Thanks to: Naveen N. Rao"
* tag 'powerpc-4.17-5' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux:
powerpc/pseries: Fix CONFIG_NUMA=n build
powerpc/trace/syscalls: Update syscall name matching logic to account for ppc_ prefix
powerpc/trace/syscalls: Update syscall name matching logic
powerpc/64: Remove unused paca->soft_enabled
Linus Torvalds [Fri, 11 May 2018 20:04:35 +0000 (13:04 -0700)]
Merge tag 'trace-v4.17-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace
Pull tracing fix from Steven Rostedt:
"Working on some new updates to trace filtering, I noticed that the
regex_match_front() test was updated to be limited to the size of the
pattern instead of the full test string.
But as the test string is not guaranteed to be nul terminated, it
still needs to consider the size of the test string"
* tag 'trace-v4.17-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace:
tracing: Fix regex_match_front() to not over compare the test string
The caller calls action's ->init() and passes pointer to "struct tc_action *a",
which later may be initialized to point at the existing action, otherwise
"struct tc_action *a" is still invalid, and therefore dereferencing it is an
error as happens in tcf_idr_release, where refcnt is decremented.
So in case of missing flags tcf_idr_release must be called only for
existing actions.
v2:
- prepare patch for net tree
Fixes: 5e1567aeb7fe ("net sched: skbedit action fix late binding") Signed-off-by: Roman Mashak <mrv@mojatatu.com> Acked-by: Cong Wang <xiyou.wangcong@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Colin Ian King [Wed, 9 May 2018 13:58:48 +0000 (14:58 +0100)]
ixgbe: fix memory leak on ipsec allocation
The error clean up path kfree's adapter->ipsec and should be
instead kfree'ing ipsec. Fix this. Also, the err1 error exit path
does not need to kfree ipsec because this failure path was for
the failed allocation of ipsec.
Detected by CoverityScan, CID#146424 ("Resource Leak")
Fixes: 63a67fe229ea ("ixgbe: add ipsec offload add and remove SA") Signed-off-by: Colin Ian King <colin.king@canonical.com> Acked-by: Shannon Nelson <shannon.nelson@oracle.com> Tested-by: Andrew Bowers <andrewx.bowers@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
The method ndo_start_xmit() is defined as returning an 'netdev_tx_t',
which is a typedef for an enum type, but the implementation in this
driver returns an 'int'.
Fix this by returning 'netdev_tx_t' in this driver too.
Signed-off-by: Luc Van Oostenryck <luc.vanoostenryck@gmail.com> Tested-by: Andrew Bowers <andrewx.bowers@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Emil Tantilov [Fri, 20 Apr 2018 00:06:57 +0000 (17:06 -0700)]
ixgbe: return error on unsupported SFP module when resetting
Add check for unsupported module and return the error code.
This fixes a Coverity hit due to unused return status from setup_sfp.
Signed-off-by: Emil Tantilov <emil.s.tantilov@intel.com> Tested-by: Andrew Bowers <andrewx.bowers@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Jeff Shaw [Wed, 18 Apr 2018 18:23:27 +0000 (11:23 -0700)]
ice: Set rq_last_status when cleaning rq
Prior to this commit, the rq_last_status was only set when hardware
responded with an error. This leads to rq_last_status being invalid
in the future when hardware eventually responds without error. This
commit resolves the issue by unconditionally setting rq_last_status
with the value returned in the descriptor.
Fixes: 940b61af02f4 ("ice: Initialize PF and setup miscellaneous
interrupt")
Signed-off-by: Jeff Shaw <jeffrey.b.shaw@intel.com> Signed-off-by: Anirudh Venkataramanan <anirudh.venkataramanan@intel.com> Tested-by: Tony Brelinski <tonyx.brelinski@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Rob Herring [Fri, 11 May 2018 13:45:59 +0000 (08:45 -0500)]
sh: switch to NO_BOOTMEM
Commit 0fa1c579349f ("of/fdt: use memblock_virt_alloc for early alloc")
inadvertently switched the DT unflattening allocations from memblock to
bootmem which doesn't work because the unflattening happens before
bootmem is initialized. Swapping the order of bootmem init and
unflattening could also fix this, but removing bootmem is desired. So
enable NO_BOOTMEM on SH like other architectures have done.
Fixes: 0fa1c579349f ("of/fdt: use memblock_virt_alloc for early alloc") Reported-by: Rich Felker <dalias@libc.org> Cc: Yoshinori Sato <ysato@users.sourceforge.jp> Signed-off-by: Rob Herring <robh@kernel.org> Signed-off-by: Rich Felker <dalias@libc.org>
Linus Torvalds [Fri, 11 May 2018 16:52:01 +0000 (09:52 -0700)]
mmap: introduce sane default mmap limits
The internal VM "mmap()" interfaces are based on the mmap target doing
everything using page indexes rather than byte offsets, because
traditionally (ie 32-bit) we had the situation that the byte offset
didn't fit in a register. So while the mmap virtual address was limited
by the word size of the architecture, the backing store was not.
So we're basically passing "pgoff" around as a page index, in order to
be able to describe backing store locations that are much bigger than
the word size (think files larger than 4GB etc).
But while this all makes a ton of sense conceptually, we've been dogged
by various drivers that don't really understand this, and internally
work with byte offsets, and then try to work with the page index by
turning it into a byte offset with "pgoff << PAGE_SHIFT".
Which obviously can overflow.
Adding the size of the mapping to it to get the byte offset of the end
of the backing store just exacerbates the problem, and if you then use
this overflow-prone value to check various limits of your device driver
mmap capability, you're just setting yourself up for problems.
The correct thing for drivers to do is to do their limit math in page
indices, the way the interface is designed. Because the generic mmap
code _does_ test that the index doesn't overflow, since that's what the
mmap code really cares about.
HOWEVER.
Finding and fixing various random drivers is a sisyphean task, so let's
just see if we can just make the core mmap() code do the limiting for
us. Realistically, the only "big" backing stores we need to care about
are regular files and block devices, both of which are known to do this
properly, and which have nice well-defined limits for how much data they
can access.
So let's special-case just those two known cases, and then limit other
random mmap users to a backing store that still fits in "unsigned long".
Realistically, that's not much of a limit at all on 64-bit, and on
32-bit architectures the only worry might be the GPU drivers, which can
have big physical address spaces.
To make it possible for drivers like that to say that they are 64-bit
clean, this patch does repurpose the "FMODE_UNSIGNED_OFFSET" bit in the
file flags to allow drivers to mark their file descriptors as safe in
the full 64-bit mmap address space.
[ The timing for doing this is less than optimal, and this should really
go in a merge window. But realistically, this needs wide testing more
than it needs anything else, and being main-line is the only way to do
that.
So the earlier the better, even if it's outside the proper development
cycle - Linus ]
Cc: Kees Cook <keescook@chromium.org> Cc: Dan Carpenter <dan.carpenter@oracle.com> Cc: Al Viro <viro@zeniv.linux.org.uk> Cc: Willy Tarreau <w@1wt.eu> Cc: Dave Airlie <airlied@redhat.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Linus Torvalds [Fri, 11 May 2018 16:49:02 +0000 (09:49 -0700)]
Merge tag 'pm-4.17-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull power management fixes from Rafael Wysocki:
"These fix two PCI power management regressions from the 4.13 cycle and
one cpufreq schedutil governor bug introduced during the 4.12 cycle,
drop a stale comment from the schedutil code and fix two mistakes in
docs.
Specifics:
- Restore device_may_wakeup() check in pci_enable_wake() removed
inadvertently during the 4.13 cycle to prevent systems from drawing
excessive power when suspended or off, among other things (Rafael
Wysocki).
- Fix pci_dev_run_wake() to properly handle devices that only can
signal PME# when in the D3cold power state (Kai Heng Feng).
- Fix the schedutil cpufreq governor to avoid using UINT_MAX as the
new CPU frequency in some cases due to a missing check (Rafael
Wysocki).
- Remove a stale comment regarding worker kthreads from the schedutil
cpufreq governor (Juri Lelli).
- Fix a copy-paste mistake in the intel_pstate driver documentation
(Juri Lelli).
- Fix a typo in the system sleep states documentation (Jonathan
Neuschäfer)"
* tag 'pm-4.17-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
PCI / PM: Check device_may_wakeup() in pci_enable_wake()
PCI / PM: Always check PME wakeup capability for runtime wakeup support
cpufreq: schedutil: Avoid using invalid next_freq
cpufreq: schedutil: remove stale comment
PM: docs: intel_pstate: fix Active Mode w/o HWP paragraph
PM: docs: sleep-states: Fix a typo ("includig")
Linus Torvalds [Fri, 11 May 2018 16:46:14 +0000 (09:46 -0700)]
Merge tag 'mtd/fixes-for-4.17-rc5' of git://git.infradead.org/linux-mtd
Pull mtd fixes from Boris Brezillon:
- make nand_soft_waitrdy() wait tWB before polling the status REG
- fix BCH write in the the Marvell NAND controller driver
- fix wrong picosec to msec conversion in the Marvell NAND controller
driver
- fix DMA handling in the TI OneNAND controllre driver
* tag 'mtd/fixes-for-4.17-rc5' of git://git.infradead.org/linux-mtd:
mtd: rawnand: Make sure we wait tWB before polling the STATUS reg
mtd: rawnand: marvell: fix command xtype in BCH write hook
mtd: rawnand: marvell: pass ms delay to wait_op
mtd: onenand: omap2: Disable DMA for HIGHMEM buffers
Linus Torvalds [Fri, 11 May 2018 16:18:02 +0000 (09:18 -0700)]
Merge tag 'drm-fixes-for-v4.17-rc5' of git://people.freedesktop.org/~airlied/linux
Pull drm fixes from Dave Airlie:
"nouveau, amdgpu, i915, vc4, omap, exynos and atomic fixes.
As last week seemed a bit slow, we got a few more fixes this week.
The main stuff is two weeks of fixes for amdgpu, some missing bits of
vega12 atom firmware support were added, and some power management
fixes.
Nouveau got two regression fixes for an DP MST deadlock and a random
oops fix.
i915 got an LVDS panel timeout fix 2 WARN fixes.
exynos fixed a pagefault issue in the mixer driver.
vc4 has an oops fix.
omap had a bunch of uninit var and error-checking fixes. Two atomic
modesetting state fixes.
One minor agp cleanup patch"
* tag 'drm-fixes-for-v4.17-rc5' of git://people.freedesktop.org/~airlied/linux: (30 commits)
drm/amd/pp: Fix performance drop on Fiji
drm/nouveau: Fix deadlock in nv50_mstm_register_connector()
drm/nouveau/ttm: don't dereference nvbo::cli, it can outlive client
agp: uninorth: make two functions static
drm/amd/pp: Refine the output of pp_power_profile_mode on VI
drm/amdgpu: Switch to interruptable wait to recover from ring hang.
drm/ttm: Use GFP_TRANSHUGE_LIGHT for allocating huge pages
drm/amd/display: Use kvzalloc for potentially large allocations
drm/amd/display: Don't return ddc result and read_bytes in same return value
drm/amd/display: Add get_firmware_info_v3_2 for VG12
drm/amd: Add BIOS smu_info v3_3 required struct def.
drm/amd/display: Add VG12 ASIC IDs
drm/vc4: Fix scaling of uni-planar formats
drm/exynos: hdmi: avoid duplicating drm_bridge_attach
drm/i915: Fix drm:intel_enable_lvds ERROR message in kernel log
drm/i915: Correctly populate user mode h/vdisplay with pipe src size during readout
drm/i915: Adjust eDP's logical vco in a reliable place.
drm/bridge/sii8620: add Kconfig dependency on extcon
drm/omap: handle alloc failures in omap_connector
drm/omap: add missing linefeeds to prints
...
There was a regression at some point from the intended functionality of
commit f60c3704e87d ("bonding: Fix alb mode to only use first level
vlans.")
Given the return value vlan_get_encap_level() we need to store the nest
level of the bond device, and then compare the vlan's encap level to
this. Without this, this check always fails and learning packets are
never sent.
In addition, this same commit caused a regression in the behavior of
balance_alb, which requires learning packets be sent for all interfaces
using the slave's mac in order to load balance properly. For vlan's
that have not set a user mac, we can send after checking one bit.
Otherwise we need send the set mac, albeit defeating rx load balancing
for that vlan.
Signed-off-by: Debabrata Banerjee <dbanerje@akamai.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Make sure multicast, broadcast, and zero mac's cannot be the output of rlb
updates, which should all be directed arps. Receive load balancing will be
collapsed if any of these happen, as the switch will broadcast.
Signed-off-by: Debabrata Banerjee <dbanerje@akamai.com> Signed-off-by: David S. Miller <davem@davemloft.net>
tracing: Fix regex_match_front() to not over compare the test string
The regex match function regex_match_front() in the tracing filter logic,
was fixed to test just the pattern length from testing the entire test
string. That is, it went from strncmp(str, r->pattern, len) to
strcmp(str, r->pattern, r->len).
The issue is that str is not guaranteed to be nul terminated, and if r->len
is greater than the length of str, it can access more memory than is
allocated.
The solution is to add a simple test if (len < r->len) return 0.
Jann Horn [Fri, 11 May 2018 00:19:01 +0000 (02:19 +0200)]
compat: fix 4-byte infoleak via uninitialized struct field
Commit 3a4d44b61625 ("ntp: Move adjtimex related compat syscalls to
native counterparts") removed the memset() in compat_get_timex(). Since
then, the compat adjtimex syscall can invoke do_adjtimex() with an
uninitialized ->tai.
If do_adjtimex() doesn't write to ->tai (e.g. because the arguments are
invalid), compat_put_timex() then copies the uninitialized ->tai field
to userspace.
Fix it by adding the memset() back.
Fixes: 3a4d44b61625 ("ntp: Move adjtimex related compat syscalls to native counterparts") Signed-off-by: Jann Horn <jannh@google.com> Acked-by: Kees Cook <keescook@chromium.org> Acked-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Roi Dayan [Thu, 22 Mar 2018 16:51:37 +0000 (18:51 +0200)]
net/mlx5e: Err if asked to offload TC match on frag being first
The HW doesn't support matching on frag first/later, return error if we are
asked to offload that.
Fixes: 3f7d0eb42d59 ("net/mlx5e: Offload TC matching on packets being IP fragments") Signed-off-by: Roi Dayan <roid@mellanox.com> Reviewed-by: Or Gerlitz <ogerlitz@mellanox.com> Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Daniel Jurgens [Mon, 26 Mar 2018 18:35:29 +0000 (13:35 -0500)]
net/mlx5: Free IRQs in shutdown path
Some platforms require IRQs to be free'd in the shutdown path. Otherwise
they will fail to be reallocated after a kexec.
Fixes: 8812c24d28f4 ("net/mlx5: Add fast unload support in shutdown flow") Signed-off-by: Daniel Jurgens <danielj@mellanox.com> Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
David Howells [Thu, 10 May 2018 22:26:00 +0000 (23:26 +0100)]
rxrpc: Fix error reception on AF_INET6 sockets
AF_RXRPC tries to turn on IP_RECVERR and IP_MTU_DISCOVER on the UDP socket
it just opened for communications with the outside world, regardless of the
type of socket. Unfortunately, this doesn't work with an AF_INET6 socket.
Fix this by turning on IPV6_RECVERR and IPV6_MTU_DISCOVER instead if the
socket is of the AF_INET6 family.
Without this, kAFS server and address rotation doesn't work correctly
because the algorithm doesn't detect received network errors.
Fixes: 75b54cb57ca3 ("rxrpc: Add IPv6 support") Signed-off-by: David Howells <dhowells@redhat.com>
David Howells [Thu, 10 May 2018 22:26:00 +0000 (23:26 +0100)]
rxrpc: Fix missing start of call timeout
The expect_rx_by call timeout is supposed to be set when a call is started
to indicate that we need to receive a packet by that point. This is
currently put back every time we receive a packet, but it isn't started
when we first send a packet. Without this, the call may wait forever if
the server doesn't deign to reply.
Fix this by setting the timeout upon a successful UDP sendmsg call for the
first DATA packet. The timeout is initiated only for initial transmission
and not for subsequent retries as we don't want the retry mechanism to
extend the timeout indefinitely.
Fixes: a158bdd3247b ("rxrpc: Fix call timeouts") Reported-by: Marc Dionne <marc.dionne@auristor.com> Signed-off-by: David Howells <dhowells@redhat.com>
Xin Long [Thu, 10 May 2018 09:34:13 +0000 (17:34 +0800)]
sctp: remove sctp_chunk_put from fail_mark err path in sctp_ulpevent_make_rcvmsg
In Commit 1f45f78f8e51 ("sctp: allow GSO frags to access the chunk too"),
it held the chunk in sctp_ulpevent_make_rcvmsg to access it safely later
in recvmsg. However, it also added sctp_chunk_put in fail_mark err path,
which is only triggered before holding the chunk.
syzbot reported a use-after-free crash happened on this err path, where
it shouldn't call sctp_chunk_put.
This patch simply removes this call.
Fixes: 1f45f78f8e51 ("sctp: allow GSO frags to access the chunk too") Reported-by: syzbot+141d898c5f24489db4aa@syzkaller.appspotmail.com Signed-off-by: Xin Long <lucien.xin@gmail.com> Acked-by: Neil Horman <nhorman@tuxdriver.com> Acked-by: Marcelo Ricardo Leitner <marcelo.leitner@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
The hyper-v transparent bonding should have used master_dev_link.
The netvsc device should look like a master bond device not
like the upper side of a tunnel.
This makes the semantics the same so that userspace applications
looking at network devices see the correct master relationshipship.
Fixes: 0c195567a8f6 ("netvsc: transparent VF management") Signed-off-by: Stephen Hemminger <stephen@networkplumber.org> Signed-off-by: David S. Miller <davem@davemloft.net>
David S. Miller [Thu, 10 May 2018 21:34:50 +0000 (17:34 -0400)]
Merge tag 'mac80211-for-davem-2018-05-09' of git://git.kernel.org/pub/scm/linux/kernel/git/jberg/mac80211
Johannes Berg says:
====================
We only have a few fixes this time:
* WMM element validation
* SAE timeout
* add-BA timeout
* docbook parsing
* a few memory leaks in error paths
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Local variable description: ----addr@___sys_recvmsg
Variable was created at:
___sys_recvmsg+0xd5/0x810 net/socket.c:2246
__sys_recvmsg net/socket.c:2328 [inline]
__do_sys_recvmsg net/socket.c:2338 [inline]
__se_sys_recvmsg net/socket.c:2335 [inline]
__x64_sys_recvmsg+0x325/0x460 net/socket.c:2335
Byte 19 of 32 is uninitialized
Fixes: 31c82a2d9d51 ("tipc: add second source address to recvmsg()/recvfrom()") Signed-off-by: Eric Dumazet <edumazet@google.com> Reported-by: syzbot <syzkaller@googlegroups.com> Cc: Jon Maloy <jon.maloy@ericsson.com> Cc: Ying Xue <ying.xue@windriver.com> Acked-by: Jon Maloy <jon.maloy@ericsson.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Davide Caratti [Wed, 9 May 2018 16:45:42 +0000 (18:45 +0200)]
tc-testing: fix tdc tests for 'bpf' action
- correct a typo in the value of 'matchPattern' of test 282d, potentially
causing false negative
- allow errors when 'teardown' executes '$TC action flush action bpf' in
test 282d, to fix false positive when it is run with act_bpf unloaded
- correct the value of 'matchPattern' in test e939, causing false positive
in case the BPF JIT is enabled
Fixes: 440ea4ae1828 ("tc-testing: add selftests for 'bpf' action") Signed-off-by: Davide Caratti <dcaratti@redhat.com> Acked-by: Lucas Bates <lucasb@mojatatu.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Moshe Shemesh [Wed, 9 May 2018 15:35:13 +0000 (18:35 +0300)]
net/mlx4_en: Verify coalescing parameters are in range
Add check of coalescing parameters received through ethtool are within
range of values supported by the HW.
Driver gets the coalescing rx/tx-usecs and rx/tx-frames as set by the
users through ethtool. The ethtool support up to 32 bit value for each.
However, mlx4 modify cq limits the coalescing time parameter and
coalescing frames parameters to 16 bits.
Return out of range error if user tries to set these parameters to
higher values.
Change type of sample-interval and adaptive_rx_coal parameters in mlx4
driver to u32 as the ethtool holds them as u32 and these parameters are
not limited due to mlx4 HW.
Fixes: c27a02cd94d6 ('mlx4_en: Add driver for Mellanox ConnectX 10GbE NIC') Signed-off-by: Moshe Shemesh <moshe@mellanox.com> Signed-off-by: Tariq Toukan <tariqt@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Ganesh Goudar [Wed, 9 May 2018 13:10:09 +0000 (18:40 +0530)]
cxgb4: zero the HMA memory
firmware expects HMA memory to be zeroed, use __GFP_ZERO
for HMA memory allocation.
Fixes: 8b4e6b3ca2ed ("cxgb4: Add HMA support") Signed-off-by: Ganesh Goudar <ganeshgr@chelsio.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Paolo Abeni [Wed, 9 May 2018 10:42:34 +0000 (12:42 +0200)]
udp: fix SO_BINDTODEVICE
Damir reported a breakage of SO_BINDTODEVICE for UDP sockets.
In absence of VRF devices, after commit fb74c27735f0 ("net:
ipv4: add second dif to udp socket lookups") the dif mismatch
isn't fatal anymore for UDP socket lookup with non null
sk_bound_dev_if, breaking SO_BINDTODEVICE semantics.
This changeset addresses the issue making the dif match mandatory
again in the above scenario.
Reported-by: Damir Mansurov <dnman@oktetlabs.ru> Fixes: fb74c27735f0 ("net: ipv4: add second dif to udp socket lookups") Fixes: 1801b570dd2a ("net: ipv6: add second dif to udp socket lookups") Signed-off-by: Paolo Abeni <pabeni@redhat.com> Acked-by: David Ahern <dsahern@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Hangbin Liu [Wed, 9 May 2018 10:06:44 +0000 (18:06 +0800)]
ipv4: reset fnhe_mtu_locked after cache route flushed
After route cache is flushed via ipv4_sysctl_rtcache_flush(), we forget
to reset fnhe_mtu_locked in rt_bind_exception(). When pmtu is updated
in __ip_rt_update_pmtu(), it will return directly since the pmtu is
still locked. e.g.
+ ip netns exec client ping 10.10.1.1 -c 1 -s 1400 -M do
PING 10.10.1.1 (10.10.1.1) 1400(1428) bytes of data.
>From 10.10.0.254 icmp_seq=1 Frag needed and DF set (mtu = 0)
Signed-off-by: David S. Miller <davem@davemloft.net>
Mohammed Gamal [Wed, 9 May 2018 08:17:34 +0000 (10:17 +0200)]
hv_netvsc: Fix net device attach on older Windows hosts
On older windows hosts the net_device instance is returned to
the caller of rndis_filter_device_add() without having the presence
bit set first. This would cause any subsequent calls to network device
operations (e.g. MTU change, channel change) to fail after the device
is detached once, returning -ENODEV.
Instead of returning the device instabce, we take the exit path where
we call netif_device_attach()
Fixes: 7b2ee50c0cd5 ("hv_netvsc: common detach logic") Signed-off-by: Mohammed Gamal <mgamal@redhat.com> Reviewed-by: Stephen Hemminger <sthemmin@microsoft.com> Signed-off-by: David S. Miller <davem@davemloft.net>
nfp: flower: remove headroom from max MTU calculation
Since commit 29a5dcae2790 ("nfp: flower: offload phys port MTU change") we
take encapsulation headroom into account when calculating the max allowed
MTU. This is unnecessary as the max MTU advertised by firmware should have
already accounted for encap headroom.
Subtracting headroom twice brings the max MTU below what's necessary for
some deployments.
Fixes: 29a5dcae2790 ("nfp: flower: offload phys port MTU change") Signed-off-by: Pieter Jansen van Vuuren <pieter.jansenvanvuuren@netronome.com> Reviewed-by: John Hurley <john.hurley@netronome.com> Reviewed-by: Jakub Kicinski <jakub.kicinski@netronome.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Colin Ian King <colin.king@canonical.com> Acked-by: Neil Horman <nhorman@tuxdriver.com> Signed-off-by: David S. Miller <davem@davemloft.net>
David S. Miller [Thu, 10 May 2018 19:22:36 +0000 (15:22 -0400)]
Merge branch 'qed-rdma-fixes'
Michal Kalderon says:
====================
qed*: Rdma fixes
This patch series include two fixes for bugs related to rdma.
The first has to do with loading the driver over an iWARP
device.
The second fixes a previous commit that added proper link
indication for iWARP / RoCE.
====================
Signed-off-by: Michal Kalderon <Michal.Kalderon@cavium.com> Signed-off-by: Sudarsana Kalluru <Sudarsana.Kalluru@cavium.com>
Michal Kalderon [Tue, 8 May 2018 18:29:19 +0000 (21:29 +0300)]
qede: Fix gfp flags sent to rdma event node allocation
A previous commit 4609adc27175 ("qede: Fix qedr link update")
added a flow that could allocate rdma event objects from an
interrupt path (link notification). Therefore the kzalloc call
should be done with GFP_ATOMIC.
fixes: 4609adc27175 ("qede: Fix qedr link update") Signed-off-by: Michal Kalderon <Michal.Kalderon@cavium.com> Signed-off-by: Sudarsana Kalluru <Sudarsana.Kalluru@cavium.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Michal Kalderon [Tue, 8 May 2018 18:29:18 +0000 (21:29 +0300)]
qed: Fix l2 initializations over iWARP personality
If qede driver was loaded on a device configured for iWARP
the l2 mutex wouldn't be allocated, and some l2 related
resources wouldn't be freed.
fixes: c851a9dc4359 ("qed: Introduce iWARP personality") Signed-off-by: Michal Kalderon <Michal.Kalderon@cavium.com> Signed-off-by: Sudarsana Kalluru <Sudarsana.Kalluru@cavium.com> Signed-off-by: David S. Miller <davem@davemloft.net>
projects / mirror_ubuntu-jammy-kernel.git / log