linux-stable/fs
Baokun Li 4ba7bbeab8 jffs2: fix memory leak in jffs2_do_fill_super
[ Upstream commit c14adb1cf7 ]

If jffs2_iget() or d_make_root() in jffs2_do_fill_super() returns
an error, we can observe the following kmemleak report:

--------------------------------------------
unreferenced object 0xffff888105a65340 (size 64):
  comm "mount", pid 710, jiffies 4302851558 (age 58.239s)
  hex dump (first 32 bytes):
    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
  backtrace:
    [<ffffffff859c45e5>] kmem_cache_alloc_trace+0x475/0x8a0
    [<ffffffff86160146>] jffs2_sum_init+0x96/0x1a0
    [<ffffffff86140e25>] jffs2_do_mount_fs+0x745/0x2120
    [<ffffffff86149fec>] jffs2_do_fill_super+0x35c/0x810
    [<ffffffff8614aae9>] jffs2_fill_super+0x2b9/0x3b0
    [...]
unreferenced object 0xffff8881bd7f0000 (size 65536):
  comm "mount", pid 710, jiffies 4302851558 (age 58.239s)
  hex dump (first 32 bytes):
    bb bb bb bb bb bb bb bb bb bb bb bb bb bb bb bb  ................
    bb bb bb bb bb bb bb bb bb bb bb bb bb bb bb bb  ................
  backtrace:
    [<ffffffff858579ba>] kmalloc_order+0xda/0x110
    [<ffffffff85857a11>] kmalloc_order_trace+0x21/0x130
    [<ffffffff859c2ed1>] __kmalloc+0x711/0x8a0
    [<ffffffff86160189>] jffs2_sum_init+0xd9/0x1a0
    [<ffffffff86140e25>] jffs2_do_mount_fs+0x745/0x2120
    [<ffffffff86149fec>] jffs2_do_fill_super+0x35c/0x810
    [<ffffffff8614aae9>] jffs2_fill_super+0x2b9/0x3b0
    [...]
--------------------------------------------

This is because the resources allocated in jffs2_sum_init() are not
released. Call jffs2_sum_exit() to release these resources to solve
the problem.

Fixes: e631ddba58 ("[JFFS2] Add erase block summary support (mount time improvement)")
Signed-off-by: Baokun Li <libaokun1@huawei.com>
Signed-off-by: Richard Weinberger <richard@nod.at>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2022-06-14 16:52:38 +02:00
..
9p 9P: Cast to loff_t before multiplying 2020-11-10 10:23:59 +01:00
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 bfs: add sanity check at bfs_fill_super() 2018-12-01 09:44:19 +01:00
btrfs btrfs: add "0x" prefix for unsupported optional features 2022-06-14 16:52:28 +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: Check the IOCB_DIRECT flag, not O_DIRECT 2022-04-27 13:14:11 +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 Cramfs: fix abad comparison when wrap-arounds occur 2018-11-13 11:17:03 -08:00
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 fs/exofs: fix potential memory leak in mount option parsing 2018-11-27 16:09:38 +01:00
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: verify dir block before splitting it 2022-06-14 16:52:34 +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: fix live lock in fuse_iget() 2022-01-27 08:47:40 +01:00
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 NFS: remove unneeded check in decode_devicenotify_args() 2022-04-20 09:06:37 +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 memory leak in nilfs_sysfs_delete_snapshot_group 2021-09-26 13:36:19 +02:00
nls
notify inotify: show inotify mask flags in proc fdinfo 2022-06-14 16:52:31 +02:00
ntfs ntfs: add sanity check on allocation size 2022-04-20 09:06:38 +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/vmcore: fix clearing user buffer by properly using clear_user() 2021-12-08 08:45:04 +01:00
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: Set the group ownership in apply_options() not parse_options() 2022-03-02 11:32:05 +01:00
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: map unwritten blocks in XFS_IOC_{ALLOC,FREE}SP just like fallocate 2022-01-11 13:38:12 +01:00
aio.c aio: fix spectre gadget in lookup_ioctx 2018-12-21 14:11:31 +01:00
anon_inodes.c
attr.c
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 binfmt_elf: compat: avoid unused function warning 2018-02-25 11:05:55 +01:00
compat_ioctl.c media: dvb_frontend: Add compat_ioctl callback 2020-06-30 15:38:35 -04:00
coredump.c
dax.c fs/dax.c: fix inefficiency in dax_writeback_mapping_range() 2018-02-28 10:18:33 +01:00
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 fs/fcntl: f_setown, avoid undefined behaviour 2018-01-31 12:55:52 +01:00
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 futex: Fix inode life-time issue 2020-04-02 17:20:27 +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 mbcache: initialize entry->e_referenced in mb_cache_entry_create() 2018-02-22 15:43:48 +01:00
mount.h
mpage.c fs/mpage.c: fix mpage_writepage() for pages with buffers 2017-10-18 09:35:39 +02:00
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 nsfs: mark dentry with DCACHE_RCUACCESS 2018-02-17 13:21:15 +01:00
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