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linux-stable/fs
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Dongliang Mu d1ff475d7c fs: fix UAF/GPF bug in nilfs_mdt_destroy 
commit 2e488f1375 upstream.

In alloc_inode, inode_init_always() could return -ENOMEM if
security_inode_alloc() fails, which causes inode->i_private
uninitialized. Then nilfs_is_metadata_file_inode() returns
true and nilfs_free_inode() wrongly calls nilfs_mdt_destroy(),
which frees the uninitialized inode->i_private
and leads to crashes(e.g., UAF/GPF).

Fix this by moving security_inode_alloc just prior to
this_cpu_inc(nr_inodes)

Link: https://lkml.kernel.org/r/CAFcO6XOcf1Jj2SeGt=jJV59wmhESeSKpfR0omdFRq+J9nD1vfQ@mail.gmail.com
Reported-by: butt3rflyh4ck <butterflyhuangxx@gmail.com>
Reported-by: Hao Sun <sunhao.th@gmail.com>
Reported-by: Jiacheng Xu <stitch@zju.edu.cn>
Reviewed-by: Christian Brauner (Microsoft) <brauner@kernel.org>
Signed-off-by: Dongliang Mu <mudongliangabcd@gmail.com>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: stable@vger.kernel.org
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2022-10-26 13:15:34 +02:00
..
9p 9p: missing chunk of "fs/9p: Don't update file type when updating file attributes" 2022-06-25 11:44:57 +02:00
adfs fs/adfs: super: fix use-after-free bug 2019-08-06 18:29:35 +02:00
affs affs: fix basic permission bits to actually work 2020-09-12 11:47:39 +02:00
afs afs: Fix large file support 2020-01-29 10:24:34 +01:00
autofs4 autofs: fix a leak in autofs_expire_indirect() 2019-12-21 10:40:46 +01:00
befs
bfs
btrfs btrfs: check if root is readonly while setting security xattr 2022-09-05 10:23:56 +02:00
cachefiles cachefiles: Handle readpage error correctly 2020-11-10 10:24:00 +01:00
ceph ceph: lockdep annotations for try_nonblocking_invalidate 2021-09-26 13:36:18 +02:00
cifs cifs: don't send down the destination address to sendmsg for a SOCK_STREAM 2022-09-28 10:55:44 +02:00
coda coda: add error handling for fget 2019-08-06 18:29:38 +02:00
configfs configfs: fix a race in configfs_{,un}register_subsystem() 2022-03-02 11:32:03 +01:00
cramfs
crypto fscrypt: don't ignore minor_hash when hash is 0 2021-07-20 16:21:11 +02:00
debugfs debugfs: fix use-after-free on symlink traversal 2019-05-08 07:19:10 +02:00
devpts fs/devpts: always delete dcache dentry-s in dput() 2019-03-23 13:19:47 +01:00
dlm dlm: fix missing lkb refcount handling 2022-06-14 16:52:34 +02:00
ecryptfs Revert "ecryptfs: replace BUG_ON with error handling code" 2021-05-26 11:29:07 +02:00
efivarfs efivarfs: revert "fix memory leak in efivarfs_create()" 2020-12-02 08:31:28 +01:00
efs
exofs
exportfs exportfs: fix 'passing zero to ERR_PTR()' warning 2020-01-29 10:24:03 +01:00
ext2 ext2: correct max file size computing 2022-04-20 09:06:35 +02:00
ext4 ext4: make directory inode spreading reflect flexbg size 2022-09-28 10:55:47 +02:00
f2fs f2fs: fix a redundant call to f2fs_balance_fs if an error occurs 2021-05-22 10:40:30 +02:00
fat fat: add ratelimit to fat*_ent_bread() 2022-06-14 16:52:30 +02:00
freevxfs
fscache fscache: fix race between enablement and dropping of object 2018-12-17 09:38:34 +01:00
fuse fuse: limit nsec 2022-08-25 11:09:24 +02:00
gfs2 gfs2: assign rgrp glock before compute_bitstructs 2022-04-27 13:14:10 +02:00
hfs hfs: add lock nesting notation to hfs_find_init 2021-08-04 11:58:02 +02:00
hfsplus hfsplus: fix crash and filesystem corruption when deleting files 2020-04-24 07:58:59 +02:00
hostfs
hpfs
hugetlbfs hugetlbfs: hugetlb_fault_mutex_hash() cleanup 2021-06-03 08:23:33 +02:00
isofs isofs: Fix out of bound access for corrupted isofs image 2021-11-12 13:18:02 +01:00
jbd2 jbd2: abort journal if free a async write error metadata buffer 2020-09-03 11:21:19 +02:00
jffs2 jffs2: fix memory leak in jffs2_do_fill_super 2022-06-14 16:52:38 +02:00
jfs fs: jfs: fix possible NULL pointer dereference in dbFree() 2022-06-14 16:52:30 +02:00
kernfs kernfs: Fix range checks in kernfs_get_target_path 2019-11-25 09:52:23 +01:00
lockd lockd: don't use interval-based rebinding over TCP 2020-12-29 13:44:57 +01:00
logfs
minix fs/minix: reject too-large maximum file size 2020-08-21 11:02:06 +02:00
ncpfs ncpfs: fix build warning of strncpy 2019-03-13 14:04:52 -07:00
nfs NFSv4.1: RECLAIM_COMPLETE must handle EACCES 2022-08-25 11:09:28 +02:00
nfs_common nfs_common: need lock during iterate through the list 2020-12-29 13:44:59 +01:00
nfsd NFSD: Fix possible sleep during nfsd4_release_lockowner() 2022-06-06 08:19:46 +02:00
nilfs2 nilfs2: fix incorrect masking of permission flags for symlinks 2022-07-21 20:40:30 +02:00
nls
notify inotify: show inotify mask flags in proc fdinfo 2022-06-14 16:52:31 +02:00
ntfs ntfs: fix BUG_ON in ntfs_lookup_inode_by_name() 2022-10-26 13:15:32 +02:00
ocfs2 ocfs2: dlmfs: fix error handling of user_dlm_destroy_lock 2022-06-14 16:52:34 +02:00
omfs
openpromfs
orangefs fs: orangefs: fix error return code of orangefs_revalidate_lookup() 2021-11-26 11:48:38 +01:00
overlayfs ovl: fix missing negative dentry check in ovl_rename() 2021-10-17 10:05:38 +02:00
proc proc: Pass file mode to proc_pid_make_inode 2022-08-25 11:09:21 +02:00
pstore pstore/ram: Write new dumps to start of recycled zones 2020-01-12 11:24:20 +01:00
qnx4 qnx4: work around gcc false positive warning bug 2021-10-06 10:23:41 +02:00
qnx6
quota quota: make dquot_quota_sync return errors from ->sync_fs 2022-02-23 11:56:39 +01:00
ramfs
reiserfs reiserfs: check directory items on read from disk 2021-08-15 13:01:04 +02:00
romfs romfs: fix uninitialized memory leak in romfs_dev_read() 2020-08-26 10:29:03 +02:00
squashfs squashfs: fix divide error in calculate_skip() 2021-05-22 10:40:32 +02:00
sysfs fs: sysfs_emit: Remove PAGE_SIZE alignment check 2022-03-23 09:00:34 +01:00
sysv sysv: return 'err' instead of 0 in __sysv_write_inode 2018-12-17 09:38:32 +01:00
tracefs tracefs: Only clobber mode/uid/gid on remount if asked 2022-09-20 11:50:16 +02:00
ubifs ubifs: setflags: Make dirtied_ino_d 8 bytes aligned 2022-04-20 09:06:40 +02:00
udf udf: Fix NULL ptr deref when converting from inline format 2022-02-08 18:15:26 +01:00
ufs fs/ufs: avoid potential u32 multiplication overflow 2020-08-21 11:02:11 +02:00
xfs xfs: remove incorrect ASSERT in xfs_rename 2022-07-12 16:26:24 +02:00
aio.c aio: fix spectre gadget in lookup_ioctx 2018-12-21 14:11:31 +01:00
anon_inodes.c
attr.c vfs: Check the truncate maximum size in inode_newsize_ok() 2022-08-25 11:09:23 +02:00
bad_inode.c
binfmt_aout.c
binfmt_elf.c fs/binfmt_elf.c: allocate initialized memory in fill_thread_core_info() 2020-06-03 08:16:42 +02:00
binfmt_elf_fdpic.c
binfmt_em86.c
binfmt_flat.c fs/binfmt_flat.c: make load_flat_shared_library() work 2019-07-10 09:55:38 +02:00
binfmt_misc.c binfmt_misc: fix possible deadlock in bm_register_write 2021-03-17 16:10:18 +01:00
binfmt_script.c exec: load_script: Do not exec truncated interpreter path 2019-11-06 12:18:04 +01:00
block_dev.c bdev: Reduce time holding bd_mutex in sync in blkdev_close() 2020-10-01 20:40:12 +02:00
buffer.c fs: Don't invalidate page buffers in block_write_full_page() 2020-11-10 10:23:56 +01:00
char_dev.c chardev: add helper function to register char devs with a struct device 2020-05-20 08:15:32 +02:00
compat.c
compat_binfmt_elf.c
compat_ioctl.c media: dvb_frontend: Add compat_ioctl callback 2020-06-30 15:38:35 -04:00
coredump.c
dax.c
dcache.c Hang/soft lockup in d_invalidate with simultaneous calls 2019-03-27 14:13:04 +09:00
dcookies.c
direct-io.c fs: direct-io: fix missing sdio->boundary 2021-04-16 11:59:07 +02:00
drop_caches.c fs/drop_caches.c: avoid softlockups in drop_pagecache_sb() 2019-03-13 14:04:58 -07:00
eventfd.c
eventpoll.c ep_create_wakeup_source(): dentry name can change under you... 2020-10-14 09:48:13 +02:00
exec.c exec: Force single empty string when argv is empty 2022-06-06 08:19:46 +02:00
fcntl.c
fhandle.c
file.c fget: clarify and improve __fget_files() implementation 2022-03-02 11:32:07 +01:00
file_table.c fs: add fget_many() and fput_many() 2021-12-08 08:45:06 +01:00
filesystems.c
fs-writeback.c fs-writeback: writeback_sb_inodes：Recalculate 'wrote' according skipped pages 2022-06-14 16:52:34 +02:00
fs_pin.c
fs_struct.c
inode.c fs: fix UAF/GPF bug in nilfs_mdt_destroy 2022-10-26 13:15:34 +02:00
internal.h
ioctl.c
iomap.c
Kconfig
Kconfig.binfmt
libfs.c libfs: fix error cast of negative value in simple_attr_write() 2020-11-24 13:03:05 +01:00
locks.c locks: print unsigned ino in /proc/locks 2020-01-12 11:24:13 +01:00
Makefile
mbcache.c
mount.h
mpage.c
namei.c namei: only return -ECHILD from follow_dotdot_rcu() 2020-03-11 07:53:07 +01:00
namespace.c fs: warn about impending deprecation of mandatory locks 2021-08-26 08:37:29 -04:00
no-block.c
nsfs.c
open.c cifs_atomic_open(): fix double-put on late allocation failure 2020-03-20 09:07:44 +01:00
pipe.c pipe: increase minimum default pipe size to 2 pages 2021-08-15 13:01:03 +02:00
pnode.c propagate_one(): mnt_set_mountpoint() needs mount_lock 2020-05-02 17:23:20 +02:00
pnode.h
posix_acl.c
proc_namespace.c
read_write.c fs: stream_open - opener for stream-like files so that read and write can run simultaneously without deadlock 2019-06-11 12:22:49 +02:00
readdir.c filldir[64]: remove WARN_ON_ONCE() for bad directory entries 2020-01-04 13:41:06 +01:00
select.c kernel, fs: Introduce and use set_restart_fn() and arch_set_restart_data() 2021-03-24 10:59:25 +01:00
seq_file.c seq_file: disallow extremely large seq buffer allocations 2021-07-20 16:21:16 +02:00
signalfd.c signalfd: use wake_up_pollfree() 2021-12-14 10:04:48 +01:00
splice.c fs: prevent page refcount overflow in pipe_buf_get 2019-06-11 12:22:45 +02:00
stack.c
stat.c
statfs.c
super.c vfs: make freeze_super abort when sync_filesystem returns error 2022-02-23 11:56:39 +01:00
sync.c
timerfd.c
userfaultfd.c userfaultfd_release: always remove uffd flags and clear vm_userfaultfd_ctx 2019-09-06 10:19:37 +02:00
utimes.c
xattr.c xattr: break delegations in {set,remove}xattr 2020-08-21 11:01:55 +02:00