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Anirudh Rayabharam 158859083d ext4: fix kernel infoleak via ext4_extent_header 
commit ce3aba43599f0b50adbebff133df8d08a3d5fffe upstream.

Initialize eh_generation of struct ext4_extent_header to prevent leaking
info to userspace. Fixes KMSAN kernel-infoleak bug reported by syzbot at:
http://syzkaller.appspot.com/bug?id=78e9ad0e6952a3ca16e8234724b2fa92d041b9b8

Mot-CRs-fixed: (CR)
CVE-Fixed: CVE-2022-0850
Bug: 245406696

Change-Id: I7136669bc3fa829a870111dcfb5ebb1914149531
Cc: stable@kernel.org
Reported-by: syzbot+2dcfeaf8cb49b05e8f1a@syzkaller.appspotmail.com
Fixes: a86c618126 ("[PATCH] ext3: add extent map support")
Signed-off-by: Anirudh Rayabharam <mail@anirudhrb.com>
Link: https://lore.kernel.org/r/20210506185655.7118-1-mail@anirudhrb.com
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Gajjala Chakradhar <gajjalac@motorola.com>
Reviewed-on: https://gerrit.mot.com/2480182
SME-Granted: SME Approvals Granted
SLTApproved: Slta Waiver
Tested-by: Jira Key
Reviewed-by: Konstantin Makariev <kmakariev@motorola.com>
Submit-Approved: Jira Key
2023-06-01 00:54:34 -03:00
..
9p
9P: Cast to loff_t before multiplying
2020-11-05 11:08:53 +01:00
adfs
fs/adfs: super: fix use-after-free bug
2019-08-06 19:06:49 +02:00
affs
affs: fix basic permission bits to actually work
2020-09-09 19:04:30 +02:00
afs
Merge android-4.19-stable.146 (443485d) into msm-4.19
2020-10-16 11:06:31 +05:30
autofs
autofs: fix a leak in autofs_expire_indirect()
2019-12-13 08:51:01 +01:00
befs
…
bfs
bfs: add sanity check at bfs_fill_super()
2018-12-01 09:37:27 +01:00
btrfs
btrfs: tree-checker: fix the error message for transid error
2020-11-10 12:35:57 +01:00
cachefiles
cachefiles: Handle readpage error correctly
2020-11-05 11:08:54 +01:00
ceph
ceph: promote to unsigned long long before shifting
2020-11-05 11:08:53 +01:00
cifs
cifs: handle -EINTR in cifs_setattr
2020-11-05 11:08:44 +01:00
coda
coda: add error handling for fget
2019-08-06 19:06:51 +02:00
configfs
configfs: fix config_item refcnt leak in configfs_rmdir()
2020-05-27 17:37:32 +02:00
cramfs
Cramfs: fix abad comparison when wrap-arounds occur
2018-11-13 11:08:55 -08:00
crypto
fs: crypto: Setting IV_INO_LBLK_32 flag only to F2FS
2023-02-24 19:56:10 -08:00
debugfs
debugfs: fix use-after-free on symlink traversal
2019-05-08 07:21:48 +02:00
devpts
fs/devpts: always delete dcache dentry-s in dput()
2019-03-23 20:09:59 +01:00
dlm
fs: dlm: fix configfs memory leak
2020-10-30 10:38:28 +01:00
ecryptfs
ecryptfs: replace BUG_ON with error handling code
2020-02-28 16:38:59 +01:00
efivarfs
efivarfs: Replace invalid slashes with exclamation marks in dentries.
2020-11-05 11:08:32 +01:00
efs
…
exofs
Merge android-4.19-q.88 (47d86d5) into msm-4.19
2020-01-28 03:20:43 -08:00
exportfs
exportfs: fix 'passing zero to ERR_PTR()' warning
2020-01-27 14:50:02 +01:00
ext2
ext2: don't update mtime on COW faults
2020-09-09 19:04:28 +02:00
ext4
ext4: fix kernel infoleak via ext4_extent_header
2023-06-01 00:54:34 -03:00
f2fs
f2fs: guarantee to write dirty data when enabling checkpoint back
2022-07-08 16:37:35 +05:30
fat
fat: don't allow to mount if the FAT length == 0
2020-06-22 09:05:08 +02:00
freevxfs
…
fscache
fscache: fix race between enablement and dropping of object
2018-12-17 09:24:40 +01:00
fuse
fuse:Porting fuse passthrough feature
2023-06-01 00:51:08 -03:00
gfs2
Merge android-4.19-stable.157 (8ee67bc) into msm-4.19
2020-12-18 18:35:06 +05:30
hfs
fs/hfs/extent.c: fix array out of bounds read of array extent
2019-12-01 09:17:10 +01:00
hfsplus
hfsplus: fix crash and filesystem corruption when deleting files
2020-04-17 10:48:52 +02:00
hostfs
…
hpfs
…
hugetlbfs
Merge 4.19.45 into android-4.19-q
2019-05-22 08:01:49 +02:00
incfs
ANDROID: Incremental fs: Set credentials before reading/writing
2021-06-18 16:58:31 +05:30
isofs
…
jbd2
jbd2: abort journal if free a async write error metadata buffer
2020-09-03 11:24:24 +02:00
jffs2
Merge 4.19.142 into android-4.19-stable
2020-08-26 11:07:03 +02:00
jfs
jfs: fix bogus variable self-initialization
2020-01-27 14:50:33 +01:00
kernfs
Merge android-4.19-stable.125 (a483478) into msm-4.19
2020-09-20 23:45:10 +05:30
lockd
lockd: fix decoding of TEST results
2019-12-13 08:51:59 +01:00
minix
fs/minix: remove expected error message in block_to_path()
2020-08-21 11:05:38 +02:00
nfs
Merge android-4.19-stable.157 (8ee67bc) into msm-4.19
2020-12-18 18:35:06 +05:30
nfs_common
…
nfsd
NFSD: Add missing NFSv2 .pc_func methods
2020-11-05 11:08:52 +01:00
nilfs2
nilfs2: fix null pointer dereference at nilfs_segctor_do_construct()
2020-06-22 09:05:03 +02:00
nls
…
notify
Merge android-4.19-stable.157 (8ee67bc) into msm-4.19
2020-12-18 18:35:06 +05:30
ntfs
ntfs: add check for mft record size in superblock
2020-10-30 10:38:28 +01:00
ocfs2
ocfs2: change slot number type s16 to u16
2020-08-21 11:05:33 +02:00
omfs
…
openpromfs
…
orangefs
help_next should increase position index
2020-02-24 08:34:53 +01:00
overlayfs
Merge 4.19.134 into android-4.19-stable
2020-07-22 13:03:12 +02:00
proc
fs:proc:abort reclaim once process goes to foreground
2023-06-01 00:48:51 -03:00
pstore
pstore: Fix linking when crypto API disabled
2020-08-19 08:15:04 +02:00
qnx4
…
qnx6
…
quota
quota: clear padding in v2r1_mem2diskdqb()
2020-10-29 09:55:12 +01:00
ramfs
ramfs: fix nommu mmap with gaps in the page cache
2020-10-30 10:38:21 +01:00
reiserfs
reiserfs: Fix memory leak in reiserfs_parse_options()
2020-10-30 10:38:31 +01:00
romfs
romfs: fix uninitialized memory leak in romfs_dev_read()
2020-08-26 10:30:59 +02:00
sdcardfs
sdcardfs: don't depend on reserved_mb to check free space
2023-06-01 00:47:10 -03:00
squashfs
…
sysfs
…
sysv
sysv: return 'err' instead of 0 in __sysv_write_inode
2018-12-17 09:24:30 +01:00
tracefs
…
ubifs
Merge 4.19.155 into android-4.19-stable
2020-11-05 14:02:27 +01:00
udf
udf: Fix memory leak when mounting
2020-11-05 11:08:50 +01:00
ufs
fs/ufs: avoid potential u32 multiplication overflow
2020-08-21 11:05:38 +02:00
unicode
FROMLIST: unicode: Add utf8_casefold_hash
2020-02-28 03:35:36 +00:00
verity
fs-verity: remove unnecessary extern keywords
2020-06-16 14:07:40 -07:00
xfs
Merge 4.19.155 into android-4.19-stable
2020-11-05 14:02:27 +01:00
aio.c
aio: fix use-after-free due to missing POLLFREE handling
2022-02-28 19:11:35 +05:30
anon_inodes.c
…
attr.c
Restore sdcardfs feature
2020-08-21 15:15:18 +05:30
bad_inode.c
…
binfmt_aout.c
…
binfmt_elf_fdpic.c
…
binfmt_elf.c
fs/binfmt_elf.c: allocate initialized memory in fill_thread_core_info()
2020-06-03 08:19:41 +02:00
binfmt_em86.c
…
binfmt_flat.c
fs/binfmt_flat.c: make load_flat_shared_library() work
2019-07-03 13:14:44 +02:00
binfmt_misc.c
…
binfmt_script.c
exec: load_script: Do not exec truncated interpreter path
2019-11-06 13:05:37 +01:00
block_dev.c
Merge 4.19.149 into android-4.19-stable
2020-10-01 16:49:05 +02:00
buffer.c
Merge android-4.19-stable.157 (8ee67bc) into msm-4.19
2020-12-18 18:35:06 +05:30
char_dev.c
chardev: Avoid potential use-after-free in 'chrdev_open()'
2020-01-24 14:28:27 +05:30
compat_binfmt_elf.c
…
compat_ioctl.c
fix compat handling of FICLONERANGE, FIDEDUPERANGE and FS_IOC_FIEMAP
2020-01-09 10:19:07 +01:00
compat.c
…
coredump.c
coredump: fix crash when umh is disabled
2020-09-08 01:59:16 -07:00
d_path.c
ANDROID: fs: Export d_absolute_path
2018-08-28 17:10:42 +05:30
dax.c
dax: pass NOWAIT flag to iomap_apply
2020-03-05 16:42:12 +01:00
dcache.c
fs, fscrypt: clear DCACHE_ENCRYPTED_NAME when unaliasing directory
2020-11-05 11:08:35 +01:00
dcookies.c
…
direct-io.c
ANDROID: fscrypt: handle direct I/O with IV_INO_LBLK_32
2020-07-27 14:49:02 +05:30
drop_caches.c
fs: avoid softlockups in s_inodes iterators
2020-01-12 12:17:20 +01:00
eventfd.c
eventfd: track eventfd_signal() recursion depth
2020-02-11 04:34:08 -08:00
eventpoll.c
Merge 4.19.150 into android-4.19-stable
2020-10-07 08:45:35 +02:00
exec.c
FROMLIST: mm: multi-gen LRU: support page table walks
2023-06-01 00:50:54 -03:00
fcntl.c
…
fhandle.c
…
file_table.c
fs: add fget_many() and fput_many()
2023-06-01 00:51:10 -03:00
file.c
fget: check that the fd still exists after getting a ref to it
2023-06-01 00:51:10 -03:00
filesystems.c
fs/filesystems.c: downgrade user-reachable WARN_ONCE() to pr_warn_once()
2020-04-17 10:48:51 +02:00
fs_pin.c
…
fs_struct.c
Restore sdcardfs feature
2020-08-21 15:15:18 +05:30
fs-writeback.c
writeback: Fix sync livelock due to b_dirty_time processing
2020-09-03 11:24:28 +02:00
inode.c
Restore sdcardfs feature
2020-08-21 15:15:18 +05:30
internal.h
Restore sdcardfs feature
2020-08-21 15:15:18 +05:30
ioctl.c
vfs: fix FIGETBSZ ioctl on an overlayfs file
2018-11-21 09:19:14 +01:00
iomap.c
File and metadata encryption changes from android-4.19.96-107
2020-04-21 06:19:04 -07:00
Kconfig
Restore sdcardfs feature
2020-08-21 15:15:18 +05:30
Kconfig.binfmt
…
libfs.c
Merge remote-tracking branch 'aosp/upstream-f2fs-stable-linux-4.19.y' into android-4.19-stable
2020-06-15 13:24:58 -07:00
locks.c
locks: print unsigned ino in /proc/locks
2020-01-09 10:19:00 +01:00
Makefile
Restore sdcardfs feature
2020-08-21 15:15:18 +05:30
mbcache.c
…
mount.h
…
mpage.c
f2fs: fix build error on android tracepoints
2019-08-17 00:18:14 +00:00
namei.c
Restore sdcardfs feature
2020-08-21 15:15:18 +05:30
namespace.c
Merge android-4.19-stable.125 (a483478) into msm-4.19
2020-09-20 23:45:10 +05:30
no-block.c
…
nsfs.c
dcache: sort the freeing-without-RCU-delay mess for good.
2019-05-25 18:23:26 +02:00
open.c
Restore sdcardfs feature
2020-08-21 15:15:18 +05:30
pipe.c
fs: prevent page refcount overflow in pipe_buf_get
2019-05-04 09:20:11 +02:00
pnode.c
Merge 4.19.120 into android-4.19
2020-05-03 08:48:02 +02:00
pnode.h
ANDROID: mnt: Add filesystem private data to mount points
2018-12-05 09:48:13 -08:00
posix_acl.c
…
proc_namespace.c
ANDROID: vfs: Allow filesystems to access their private mount data
2018-12-05 09:48:13 -08:00
read_write.c
Merge android-4.19-stable.136 (204dd19) into msm-4.19
2020-10-14 20:04:29 +05:30
readdir.c
filldir[64]: remove WARN_ON_ONCE() for bad directory entries
2020-01-04 19:13:26 +01:00
select.c
…
seq_file.c
seq_file: disallow extremely large seq buffer allocations
2021-12-07 12:47:09 +05:30
signalfd.c
signalfd: use wake_up_pollfree()
2022-02-28 19:00:41 +05:30
splice.c
splice: only read in as much information as there is pipe buffer space
2019-12-17 20:35:43 +01:00
stack.c
…
stat.c
…
statfs.c
vfs: Fix EOVERFLOW testing in put_compat_statfs64
2019-10-11 18:21:39 +02:00
super.c
Merge crypto changes from android-4.19.79-95 into msm-4.19
2020-04-24 15:21:22 -07:00
sync.c
ANDROID: taskstats: track fsync syscalls
2018-12-05 09:48:12 -08:00
timerfd.c
alarmtimer: add debug to identify alarmtimers
2023-06-01 00:47:13 -03:00
userfaultfd.c
Merge android-4.19.95 (5da1114) into msm-4.19
2020-03-27 10:48:20 -07:00
utimes.c
Restore sdcardfs feature
2020-08-21 15:15:18 +05:30
xattr.c
Merge android-4.19-stable.146 (443485d) into msm-4.19
2020-10-16 11:06:31 +05:30