kernel-fxtec-pro1x/fs/ntfs
Rustam Kovhaev dff5d77411 ntfs: add check for mft record size in superblock
[ Upstream commit 4f8c94022f0bc3babd0a124c0a7dcdd7547bd94e ]

Number of bytes allocated for mft record should be equal to the mft record
size stored in ntfs superblock as reported by syzbot, userspace might
trigger out-of-bounds read by dereferencing ctx->attr in ntfs_attr_find()

Reported-by: syzbot+aed06913f36eff9b544e@syzkaller.appspotmail.com
Signed-off-by: Rustam Kovhaev <rkovhaev@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Tested-by: syzbot+aed06913f36eff9b544e@syzkaller.appspotmail.com
Acked-by: Anton Altaparmakov <anton@tuxera.com>
Link: https://syzkaller.appspot.com/bug?extid=aed06913f36eff9b544e
Link: https://lkml.kernel.org/r/20200824022804.226242-1-rkovhaev@gmail.com
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2020-10-30 10:38:28 +01:00
..
aops.c
aops.h
attrib.c
attrib.h
bitmap.c
bitmap.h
collate.c
collate.h
compress.c
debug.c
debug.h
dir.c
dir.h
endian.h
file.c
index.c
index.h
inode.c
inode.h
Kconfig
layout.h
lcnalloc.c
lcnalloc.h
logfile.c
logfile.h
Makefile
malloc.h
mft.c
mft.h
mst.c
namei.c
ntfs.h
quota.c
quota.h
runlist.c
runlist.h
super.c
sysctl.c
sysctl.h
time.h
types.h
unistr.c
upcase.c
usnjrnl.c
usnjrnl.h
volume.h