]> git.proxmox.com Git - mirror_ubuntu-jammy-kernel.git/commit
ntfs: add sanity check on allocation size
authorDongliang Mu <mudongliangabcd@gmail.com>
Tue, 22 Mar 2022 21:38:39 +0000 (14:38 -0700)
committerStefan Bader <stefan.bader@canonical.com>
Wed, 27 Apr 2022 09:58:27 +0000 (11:58 +0200)
commit12af467e1b7dc9343a6b57ef5c70fa8d608efaae
tree4da5147b86122be79e265611c6a4740982dbef1f
parentb2193e91c2127075c60122af93822c385597d472
ntfs: add sanity check on allocation size

BugLink: https://bugs.launchpad.net/bugs/1969110
[ Upstream commit 714fbf2647b1a33d914edd695d4da92029c7e7c0 ]

ntfs_read_inode_mount invokes ntfs_malloc_nofs with zero allocation
size.  It triggers one BUG in the __ntfs_malloc function.

Fix this by adding sanity check on ni->attr_list_size.

Link: https://lkml.kernel.org/r/20220120094914.47736-1-dzm91@hust.edu.cn
Reported-by: syzbot+3c765c5248797356edaa@syzkaller.appspotmail.com
Signed-off-by: Dongliang Mu <mudongliangabcd@gmail.com>
Acked-by: Anton Altaparmakov <anton@tuxera.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
(cherry picked from commit 24ab2d4ef52c2dbb62a60844b87fc8872383407a)
Signed-off-by: Paolo Pisati <paolo.pisati@canonical.com>
fs/ntfs/inode.c