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android_kernel_xiaomi_sm8450/fs
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Ye Bin 091f85db4c ext4: fix uninititialized value in 'ext4_evict_inode' 
[ Upstream commit 7ea71af94eaaaf6d9aed24bc94a05b977a741cb9 ]

Syzbot found the following issue:
=====================================================
BUG: KMSAN: uninit-value in ext4_evict_inode+0xdd/0x26b0 fs/ext4/inode.c:180
 ext4_evict_inode+0xdd/0x26b0 fs/ext4/inode.c:180
 evict+0x365/0x9a0 fs/inode.c:664
 iput_final fs/inode.c:1747 [inline]
 iput+0x985/0xdd0 fs/inode.c:1773
 __ext4_new_inode+0xe54/0x7ec0 fs/ext4/ialloc.c:1361
 ext4_mknod+0x376/0x840 fs/ext4/namei.c:2844
 vfs_mknod+0x79d/0x830 fs/namei.c:3914
 do_mknodat+0x47d/0xaa0
 __do_sys_mknodat fs/namei.c:3992 [inline]
 __se_sys_mknodat fs/namei.c:3989 [inline]
 __ia32_sys_mknodat+0xeb/0x150 fs/namei.c:3989
 do_syscall_32_irqs_on arch/x86/entry/common.c:112 [inline]
 __do_fast_syscall_32+0xa2/0x100 arch/x86/entry/common.c:178
 do_fast_syscall_32+0x33/0x70 arch/x86/entry/common.c:203
 do_SYSENTER_32+0x1b/0x20 arch/x86/entry/common.c:246
 entry_SYSENTER_compat_after_hwframe+0x70/0x82

Uninit was created at:
 __alloc_pages+0x9f1/0xe80 mm/page_alloc.c:5578
 alloc_pages+0xaae/0xd80 mm/mempolicy.c:2285
 alloc_slab_page mm/slub.c:1794 [inline]
 allocate_slab+0x1b5/0x1010 mm/slub.c:1939
 new_slab mm/slub.c:1992 [inline]
 ___slab_alloc+0x10c3/0x2d60 mm/slub.c:3180
 __slab_alloc mm/slub.c:3279 [inline]
 slab_alloc_node mm/slub.c:3364 [inline]
 slab_alloc mm/slub.c:3406 [inline]
 __kmem_cache_alloc_lru mm/slub.c:3413 [inline]
 kmem_cache_alloc_lru+0x6f3/0xb30 mm/slub.c:3429
 alloc_inode_sb include/linux/fs.h:3117 [inline]
 ext4_alloc_inode+0x5f/0x860 fs/ext4/super.c:1321
 alloc_inode+0x83/0x440 fs/inode.c:259
 new_inode_pseudo fs/inode.c:1018 [inline]
 new_inode+0x3b/0x430 fs/inode.c:1046
 __ext4_new_inode+0x2a7/0x7ec0 fs/ext4/ialloc.c:959
 ext4_mkdir+0x4d5/0x1560 fs/ext4/namei.c:2992
 vfs_mkdir+0x62a/0x870 fs/namei.c:4035
 do_mkdirat+0x466/0x7b0 fs/namei.c:4060
 __do_sys_mkdirat fs/namei.c:4075 [inline]
 __se_sys_mkdirat fs/namei.c:4073 [inline]
 __ia32_sys_mkdirat+0xc4/0x120 fs/namei.c:4073
 do_syscall_32_irqs_on arch/x86/entry/common.c:112 [inline]
 __do_fast_syscall_32+0xa2/0x100 arch/x86/entry/common.c:178
 do_fast_syscall_32+0x33/0x70 arch/x86/entry/common.c:203
 do_SYSENTER_32+0x1b/0x20 arch/x86/entry/common.c:246
 entry_SYSENTER_compat_after_hwframe+0x70/0x82

CPU: 1 PID: 4625 Comm: syz-executor.2 Not tainted 6.1.0-rc4-syzkaller-62821-gcb231e2f67ec #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022
=====================================================

Now, 'ext4_alloc_inode()' didn't init 'ei->i_flags'. If new inode failed
before set 'ei->i_flags' in '__ext4_new_inode()', then do 'iput()'. As after
6bc0d63dad7f commit will access 'ei->i_flags' in 'ext4_evict_inode()' which
will lead to access uninit-value.
To solve above issue just init 'ei->i_flags' in 'ext4_alloc_inode()'.

Reported-by: syzbot+57b25da729eb0b88177d@syzkaller.appspotmail.com
Signed-off-by: Ye Bin <yebin10@huawei.com>
Fixes: 6bc0d63dad7f ("ext4: remove EA inode entry from mbcache on inode eviction")
Reviewed-by: Jan Kara <jack@suse.cz>
Reviewed-by: Eric Biggers <ebiggers@google.com>
Link: https://lore.kernel.org/r/20221117073603.2598882-1-yebin@huaweicloud.com
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Cc: stable@kernel.org
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-01-18 11:44:57 +01:00
..
9p 9p: missing chunk of "fs/9p: Don't update file type when updating file attributes" 2022-06-22 14:13:12 +02:00
adfs Merge branch 'work.misc' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2020-10-24 12:26:05 -07:00
affs fs/affs: release old buffer head on error path 2021-03-04 11:38:37 +01:00
afs afs: Fix lost servers_outstanding count 2023-01-14 10:16:22 +01:00
autofs autofs: harden ioctl table 2020-10-16 11:11:22 -07:00
befs [PATCH] reduce boilerplate in fsid handling 2020-09-18 16:45:50 -04:00
bfs bfs: don't use WARNING: string when it's just info. 2021-01-06 14:56:52 +01:00
btrfs btrfs: replace strncpy() with strscpy() 2023-01-14 10:16:40 +01:00
cachefiles fs/cachefiles: Remove wait_bit_key layout dependency 2021-03-30 14:32:07 +02:00
ceph ceph: switch to vfs_inode_has_locks() to fix file lock bug 2023-01-14 10:16:47 +01:00
cifs cifs: Fix uninitialized memory read for smb311 posix symlink create 2023-01-18 11:44:54 +01:00
coda
configfs configfs: fix possible memory leak in configfs_create_dir() 2023-01-14 10:15:37 +01:00
cramfs [PATCH] reduce boilerplate in fsid handling 2020-09-18 16:45:50 -04:00
crypto fscrypt: fix keyring memory leak on mount failure 2022-11-10 18:14:25 +01:00
debugfs debugfs: fix error when writing negative value to atomic_t debugfs file 2023-01-14 10:15:19 +01:00
devpts fsnotify: fix fsnotify hooks in pseudo filesystems 2022-02-01 17:25:39 +01:00
dlm fs: dlm: handle -EBUSY first in lock arg validation 2022-10-26 13:25:08 +02:00
ecryptfs Revert "ecryptfs: replace BUG_ON with error handling code" 2021-05-26 12:06:55 +02:00
efivarfs efivarfs: revert "fix memory leak in efivarfs_create()" 2020-11-25 16:55:02 +01:00
efs [PATCH] reduce boilerplate in fsid handling 2020-09-18 16:45:50 -04:00
erofs erofs: avoid consecutive detection for Highmem memory 2022-08-21 15:15:35 +02:00
exfat exfat: check if cluster num is valid 2022-06-06 08:42:42 +02:00
exportfs
ext2 ext2: Add more validity checks for inode counts 2022-08-21 15:15:28 +02:00
ext4 ext4: fix uninititialized value in 'ext4_evict_inode' 2023-01-18 11:44:57 +01:00
f2fs f2fs: should put a page when checking the summary info 2023-01-14 10:16:27 +01:00
fat fat: add ratelimit to fat*_ent_bread() 2022-06-09 10:20:58 +02:00
freevxfs
fscache fscache: Fix cookie key hashing 2021-09-18 13:40:15 +02:00
fuse fuse: always revalidate if exclusive create 2022-12-19 12:27:31 +01:00
gfs2 gfs2: Switch from strlcpy to strscpy 2022-11-25 17:45:56 +01:00
hfs hfs/hfsplus: avoid WARN_ON() for sanity check, use proper error handling 2023-01-14 10:16:50 +01:00
hfsplus hfs/hfsplus: use WARN_ON for sanity check 2023-01-14 10:16:50 +01:00
hostfs hostfs: fix memory handling in follow_link() 2021-04-14 08:42:06 +02:00
hpfs [PATCH] reduce boilerplate in fsid handling 2020-09-18 16:45:50 -04:00
hugetlbfs hugetlbfs: fix null-ptr-deref in hugetlbfs_parse_param() 2023-01-14 10:16:20 +01:00
iomap xfs: use current->journal_info for detecting transaction recursion 2022-07-07 17:52:19 +02:00
isofs isofs: Fix out of bound access for corrupted isofs image 2021-11-12 14:58:33 +01:00
jbd2 jbd2: add miss release buffer head in fc_do_one_pass() 2022-10-26 13:25:13 +02:00
jffs2 jffs2: fix memory leak in jffs2_do_fill_super 2022-06-14 18:32:35 +02:00
jfs fs: jfs: fix shift-out-of-bounds in dbDiscardAG 2023-01-14 10:16:14 +01:00
kernfs kernfs: fix use-after-free in __kernfs_remove 2022-11-03 23:57:50 +09:00
lockd lockd: lockd server-side shouldn't set fl_ops 2021-09-18 13:40:30 +02:00
minix minix: fix bug when opening a file with O_DIRECT 2022-04-13 21:01:01 +02:00
nfs NFSv4.x: Fail client initialisation if state manager thread can't run 2023-01-14 10:15:38 +01:00
nfs_common nfs_common: need lock during iterate through the list 2020-12-30 11:53:45 +01:00
nfsd nfsd: fix handling of readdir in v4root vs. mount upcall timeout 2023-01-14 10:16:49 +01:00
nilfs2 nilfs2: fix shift-out-of-bounds due to too large exponent of block size 2023-01-14 10:16:14 +01:00
nls
notify fsnotify: fix wrong lockdep annotations 2022-06-09 10:21:03 +02:00
ntfs ntfs: check overflow when iterating ATTR_RECORDs 2022-11-25 17:45:57 +01:00
ocfs2 ocfs2: fix memory leak in ocfs2_mount_volume() 2023-01-14 10:15:19 +01:00
omfs fs: omfs: use kmemdup() rather than kmalloc+memcpy 2020-09-22 23:39:45 -04:00
openpromfs
orangefs orangefs: Fix kmemleak in orangefs_{kernel,client}_debug_init() 2023-01-14 10:16:20 +01:00
overlayfs ovl: Use ovl mounter's fsuid and fsgid in ovl_link() 2023-01-14 10:16:26 +01:00
proc Revert "proc: don't allow async path resolution of /proc/self components" 2023-01-04 11:39:24 +01:00
pstore pstore/zone: Use GFP_ATOMIC to allocate zone buffer 2023-01-14 10:16:26 +01:00
qnx4 qnx4: work around gcc false positive warning bug 2021-09-30 10:11:08 +02:00
qnx6 [PATCH] reduce boilerplate in fsid handling 2020-09-18 16:45:50 -04:00
quota ext4: fix bug_on in __es_tree_search caused by bad quota inode 2023-01-14 10:16:38 +01:00
ramfs ramfs: fix nommu mmap with gaps in the page cache 2020-10-16 11:11:22 -07:00
reiserfs reiserfs: Add missing calls to reiserfs_security_free() 2023-01-14 10:16:23 +01:00
romfs Merge branch 'work.misc' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2020-10-24 12:26:05 -07:00
squashfs squashfs: fix divide error in calculate_skip() 2021-05-19 10:13:10 +02:00
sysfs sysfs: Add sysfs_emit and sysfs_emit_at to format sysfs output 2020-10-02 12:02:30 +02:00
sysv fs: sysv: Fix sysv_nblocks() returns wrong value 2023-01-14 10:15:22 +01:00
tracefs tracefs: Only clobber mode/uid/gid on remount if asked 2022-09-20 12:38:31 +02:00
ubifs ubifs: Rectify space amount budget for mkdir/tmpfile operations 2022-04-13 21:00:53 +02:00
udf udf: Fix extension of the last extent in the file 2023-01-14 10:16:48 +01:00
ufs Merge branch 'work.misc' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2020-10-24 12:26:05 -07:00
unicode unicode: Add utf8_casefold_hash 2020-09-10 14:03:31 -07:00
vboxsf vboxfs: fix broken legacy mount signature checking 2021-10-17 10:43:33 +02:00
verity fs-verity: fix signed integer overflow with i_size near S64_MAX 2021-10-06 15:55:46 +02:00
xfs xfs: validate inode fork size against fork format 2022-09-28 11:10:29 +02:00
zonefs zonefs: fix zone report size in __zonefs_io_error() 2022-12-02 17:40:05 +01:00
aio.c aio: fix use-after-free due to missing POLLFREE handling 2021-12-14 11:32:40 +01:00
anon_inodes.c
attr.c vfs: Check the truncate maximum size in inode_newsize_ok() 2022-08-21 15:15:22 +02:00
bad_inode.c
binfmt_aout.c
binfmt_elf_fdpic.c binfmt: Fix error return code in load_elf_fdpic_binary() 2023-01-14 10:16:26 +01:00
binfmt_elf.c fs/binfmt_elf: Fix memory leak in load_elf_binary() 2022-11-03 23:57:49 +09:00
binfmt_em86.c
binfmt_flat.c binfmt_flat: do not stop relocating GOT entries prematurely on riscv 2022-06-09 10:20:47 +02:00
binfmt_misc.c binfmt_misc: fix shift-out-of-bounds in check_special_flags 2023-01-14 10:16:13 +01:00
binfmt_script.c
block_dev.c block: fix a race between del_gendisk and BLKRRPART 2021-06-03 09:00:45 +02:00
buffer.c mm: fs: initialize fsdata passed to write_begin/write_end interface 2022-11-25 17:45:56 +01:00
char_dev.c chardev: fix error handling in cdev_device_add() 2023-01-14 10:15:59 +01:00
compat_binfmt_elf.c
coredump.c coredump: Limit what can interrupt coredumps 2023-01-04 11:39:22 +01:00
d_path.c fs: fix NULL dereference due to data race in prepend_path() 2020-10-14 14:54:45 -07:00
dax.c dax: fix cache flush on PMD-mapped pages 2022-06-09 10:21:16 +02:00
dcache.c
dcookies.c
direct-io.c fs: direct-io: fix missing sdio->boundary 2021-04-14 08:41:58 +02:00
drop_caches.c
eventfd.c eventfd: provide a eventfd_signal_mask() helper 2023-01-04 11:39:24 +01:00
eventpoll.c eventpoll: add EPOLL_URING_WAKE poll wakeup flag 2023-01-04 11:39:24 +01:00
exec.c exec: Copy oldsighand->action under spin-lock 2022-11-03 23:57:49 +09:00
fcntl.c fcntl: fix potential deadlocks for &fown_struct.lock 2022-10-30 09:41:18 +01:00
fhandle.c
file_table.c SUNRPC: Ensure we flush any closed sockets before xs_xprt_free() 2022-05-18 10:23:48 +02:00
file.c fs: provide locked helper variant of close_fd_get_file() 2023-01-04 11:39:18 +01:00
filesystems.c
fs_context.c memcg: charge fs_context and legacy_fs_context 2022-02-08 18:30:36 +01:00
fs_parser.c fs_parse: mark fs_param_bad_value() as static 2020-10-13 18:38:27 -07:00
fs_pin.c
fs_struct.c
fs_types.c
fs-writeback.c fs-writeback: writeback_sb_inodes：Recalculate 'wrote' according skipped pages 2022-06-09 10:21:22 +02:00
fsopen.c treewide: Use fallthrough pseudo-keyword 2020-08-23 17:36:59 -05:00
init.c init: add an init_dup helper 2020-08-04 21:02:38 -04:00
inode.c fs: fix UAF/GPF bug in nilfs_mdt_destroy 2022-10-15 07:55:51 +02:00
internal.h fs: provide locked helper variant of close_fd_get_file() 2023-01-04 11:39:18 +01:00
ioctl.c fs: fix an infinite loop in iomap_fiemap 2022-05-25 09:17:54 +02:00
Kconfig tmpfs: disallow CONFIG_TMPFS_INODE64 on alpha 2021-02-17 11:02:21 +01:00
Kconfig.binfmt
kernel_read_file.c vfs: check fd has read access in kernel_read_file_from_fd() 2021-10-27 09:56:51 +02:00
libfs.c libfs: add DEFINE_SIMPLE_ATTRIBUTE_SIGNED for signed value 2023-01-14 10:15:19 +01:00
locks.c filelock: new helper: vfs_inode_has_locks 2023-01-14 10:16:47 +01:00
Makefile io_uring: import 5.15-stable io_uring 2023-01-04 11:39:23 +01:00
mbcache.c mbcache: Avoid nesting of cache->c_list_lock under bit locks 2023-01-14 10:16:50 +01:00
mount.h
mpage.c
namei.c fs: make do_renameat2() take struct filename 2023-01-04 11:39:18 +01:00
namespace.c fs: warn about impending deprecation of mandatory locks 2021-08-26 08:35:57 -04:00
no-block.c
nsfs.c
open.c fs: expose LOOKUP_CACHED through openat2() RESOLVE_CACHED 2023-01-04 11:39:17 +01:00
pipe.c pipe: Fix missing lock in pipe_resize_ring() 2022-06-06 08:42:41 +02:00
pnode.c pnode: terminate at peers of source 2023-01-14 10:16:27 +01:00
pnode.h mount: fix mounting of detached mounts onto targets that reside on shared mounts 2021-03-17 17:06:13 +01:00
posix_acl.c
proc_namespace.c proc mountinfo: make splice available again 2020-12-30 11:54:02 +01:00
read_write.c vfs: fix copy_file_range() averts filesystem freeze protection 2022-12-19 12:27:30 +01:00
readdir.c readdir: make sure to verify directory entry for legacy interfaces too 2021-04-21 13:00:54 +02:00
remap_range.c fs/remap: constrain dedupe of EOF blocks 2022-07-21 21:20:01 +02:00
select.c select: Fix indefinitely sleeping task in poll_schedule_timeout() 2022-01-29 10:26:11 +01:00
seq_file.c seq_file: disallow extremely large seq buffer allocations 2021-07-20 16:05:59 +02:00
signalfd.c io_uring: disable polling pollfree files 2022-09-05 10:28:58 +02:00
splice.c Revert "fs: check FMODE_LSEEK to control internal pipe splicing" 2022-10-17 17:26:07 +02:00
stack.c
stat.c stat: fix inconsistency between struct stat and struct compat_stat 2022-04-27 13:53:54 +02:00
statfs.c Add a "nosymfollow" mount option. 2020-08-27 16:06:47 -04:00
super.c fscrypt: fix keyring memory leak on mount failure 2022-11-10 18:14:25 +01:00
sync.c vfs: make sync_filesystem return errors from ->sync_fs 2022-08-31 17:15:14 +02:00
timerfd.c
userfaultfd.c userfaultfd: open userfaultfds with O_RDONLY 2022-10-26 13:25:17 +02:00
utimes.c fs: expose utimes_common 2020-07-31 08:16:01 +02:00
xattr.c fs: don't audit the capability check in simple_xattr_list() 2023-01-14 10:15:16 +01:00