msm-4.14

mirror of https://github.com/rd-stuffs/msm-4.14.git synced 2025-02-20 11:45:48 +08:00

History

OGAWA Hirofumi 265b81a525 fat: fix uninit-memory access for partial initialized inode

commit bc87302a093f0eab45cd4e250c2021299f712ec6 upstream.

When get an error in the middle of reading an inode, some fields in the
inode might be still not initialized.  And then the evict_inode path may
access those fields via iput().

To fix, this makes sure that inode fields are initialized.

Reported-by: syzbot+9d82b8de2992579da5d0@syzkaller.appspotmail.com
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: OGAWA Hirofumi <hirofumi@mail.parknet.co.jp>
Cc: <stable@vger.kernel.org>
Link: http://lkml.kernel.org/r/871rqnreqx.fsf@mail.parknet.co.jp
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

2020-03-11 18:03:03 +01:00

cache.c

fat: validate ->i_start before using

2018-09-15 09:45:27 +02:00

dir.c

fat: work around race with userspace's read via blockdev while mounting

2019-10-07 18:55:12 +02:00

fat.h

fat: validate ->i_start before using

2018-09-15 09:45:27 +02:00

fatent.c

fat: work around race with userspace's read via blockdev while mounting