Jan Kara cdd33d54e7 fat: fix uninitialized field in nostale filehandles ... [ Upstream commit fde2497d2b ] When fat_encode_fh_nostale() encodes file handle without a parent it stores only first 10 bytes of the file handle. However the length of the file handle must be a multiple of 4 so the file handle is actually 12 bytes long and the last two bytes remain uninitialized. This is not great at we potentially leak uninitialized information with the handle to userspace. Properly initialize the full handle length. Link: https://lkml.kernel.org/r/20240205122626.13701-1-jack@suse.cz Reported-by: syzbot+3ce5dea5b1539ff36769@syzkaller.appspotmail.com Fixes: ea3983ace6 ("fat: restructure export_operations") Signed-off-by: Jan Kara <jack@suse.cz> Acked-by: OGAWA Hirofumi <hirofumi@mail.parknet.co.jp> Cc: Amir Goldstein <amir73il@gmail.com> Cc: <stable@vger.kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Sasha Levin <sashal@kernel.org>		2024-04-03 15:32:06 +02:00
..
.kunitconfig	fat: Add KUnit tests for checksums and timestamps	2021-08-13 13:13:18 -06:00
cache.c	fat: new inline functions to determine the FAT variant (32, 16 or 12)	2019-01-04 13:13:47 -08:00
dir.c	Change calling conventions for filldir_t	2022-08-17 17:25:04 -04:00
fat_test.c	fat: Add KUnit tests for checksums and timestamps	2021-08-13 13:13:18 -06:00
fat.h	fs: drop the timespec64 argument from update_time	2023-08-11 09:04:57 +02:00
fatent.c	fat: add ratelimit to fat*_ent_bread()	2022-04-29 14:38:02 -07:00
file.c	fs: pass the request_mask to generic_fillattr	2023-08-09 08:56:36 +02:00
inode.c	fat: convert to new timestamp accessors	2023-10-18 14:08:03 +02:00
Kconfig	fs: add CONFIG_BUFFER_HEAD	2023-08-02 09:13:09 -06:00
Makefile	fat: Add KUnit tests for checksums and timestamps	2021-08-13 13:13:18 -06:00
misc.c	fat: convert to new timestamp accessors	2023-10-18 14:08:03 +02:00
namei_msdos.c	fs: port ->rename() to pass mnt_idmap	2023-01-19 09:24:26 +01:00
namei_vfat.c	There is no particular theme here - mainly quick hits all over the tree.	2023-02-23 17:55:40 -08:00
nfs.c	fat: fix uninitialized field in nostale filehandles	2024-04-03 15:32:06 +02:00