Eric Biggers 7dc49adbaa ext4: fix leaking sysfs kobject after failed mount ...

commit cb8d53d2c9 upstream.

ext4_unregister_sysfs() only deletes the kobject.  The reference to it
needs to be put separately, like ext4_put_super() does.

This addresses the syzbot report
"memory leak in kobject_set_name_vargs (3)"
(https://syzkaller.appspot.com/bug?extid=9f864abad79fae7c17e1).

Reported-by: syzbot+9f864abad79fae7c17e1@syzkaller.appspotmail.com
Fixes: 72ba74508b ("ext4: release sysfs kobject when failing to enable quotas on mount")
Cc: stable@vger.kernel.org
Signed-off-by: Eric Biggers <ebiggers@google.com>
Link: https://lore.kernel.org/r/20200922162456.93657-1-ebiggers@kernel.org
Reviewed-by: Jan Kara <jack@suse.cz>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
[sudip: adjust context]
Signed-off-by: Sudip Mukherjee <sudipm.mukherjee@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

2023-05-16 09:48:14 +09:00

..

acl.c

ext4: Don't clear SGID when inheriting ACLs

2017-10-12 11:51:26 +02:00

acl.h

ext2/3/4: use generic posix ACL infrastructure

2014-01-25 23:58:19 -05:00

balloc.c

ext4: fix potential race between online resizing and write operations

2023-05-15 17:01:05 +09:00

bitmap.c

ext4: remove unused header files

2015-04-02 23:47:42 -04:00

block_validity.c

ext4: add cond_resched() to ext4_protect_reserved_inode

2023-05-15 17:27:10 +09:00

dir.c

ext4: fix checksum errors with indexed dirs

2023-05-15 16:57:40 +09:00

ext4_extents.h

ext4: fix EXT_MAX_EXTENT/INDEX to check for zeroed eh_max

2023-05-15 17:34:14 +09:00

ext4_jbd2.c

ext4: fix potential use after free in __ext4_journal_stop

2015-10-17 22:57:06 -04:00

ext4_jbd2.h

ext4: fix NULL pointer dereference while journal is aborted

2023-05-15 12:06:56 +09:00

ext4.h

ext4: avoid declaring fs inconsistent due to invalid file handles

2023-05-15 17:24:22 +09:00

extents_status.c

ext4: remove trailing \n from ext4_warning/ext4_error calls

2016-04-27 01:11:21 -04:00

extents_status.h

ext4: move procfs registration code to fs/ext4/sysfs.c

2015-09-23 12:46:17 -04:00

extents.c

ext4: fix partial cluster initialization when splitting extent

2023-05-16 08:20:23 +09:00

file.c

ext4: fix data corruption caused by overlapping unaligned and aligned IO

2023-05-15 12:52:04 +09:00

fsync.c

ext4: fix race between ext4_sync_parent() and rename()

2023-05-15 17:34:16 +09:00

hash.c

ext4: remove unused header files

2015-04-02 23:47:42 -04:00

ialloc.c

ext4: avoid declaring fs inconsistent due to invalid file handles

2023-05-15 17:24:22 +09:00

indirect.c

ext4: cleanup bh release code in ext4_ind_remove_space()

2023-05-15 12:16:41 +09:00

inline.c

ext4: unlock xattr_sem properly in ext4_inline_data_truncate()

2023-05-16 09:47:35 +09:00

inode.c

ext4: fix direct I/O read error

2023-05-16 08:44:47 +09:00

ioctl.c

ext4: avoid declaring fs inconsistent due to invalid file handles

2023-05-15 17:24:22 +09:00

Kconfig

ext4 crypto: migrate into vfs's crypto engine

2016-07-10 14:01:03 -04:00

Makefile

ext4 crypto: migrate into vfs's crypto engine

2016-07-10 14:01:03 -04:00

mballoc.c

ext4: convert BUG_ON's to WARN_ON's in mballoc.c

2023-05-15 17:24:19 +09:00

mballoc.h

ext4: add missing KERN_CONT to a few more debugging uses

2016-10-15 09:57:31 -04:00

migrate.c

ext4: fix race between writepages and enabling EXT4_EXTENTS_FL

2023-05-15 17:00:38 +09:00

mmp.c

ext4: don't assume that mmp_nodename/bdevname have NUL

2023-05-15 16:57:38 +09:00

move_extent.c

ext4: fix argument checking in EXT4_IOC_MOVE_EXT

2023-05-15 09:20:10 +09:00

namei.c

fscrypt: return -EXDEV for incompatible rename or link into encrypted dir

2023-05-16 09:44:26 +09:00

page-io.c

ext4: fix deadlock allocating crypto bounce page from mempool

2023-05-15 16:56:45 +09:00

readpage.c

mm: optimize stack usage for functions [1/1]

2018-12-17 17:21:59 +08:00

resize.c

ext4: avoid declaring fs inconsistent due to invalid file handles

2023-05-15 17:24:22 +09:00

super.c

ext4: fix leaking sysfs kobject after failed mount

2023-05-16 09:48:14 +09:00

symlink.c

f2fs/fscrypt: updates to v4.17-rc1

2018-04-12 09:54:41 -07:00

sysfs.c

ext4: sysfs: print ext4_super_block fields as little-endian

2023-05-12 17:15:18 +09:00

truncate.h

ext4: fix races between page faults and hole punching

2015-12-07 14:28:03 -05:00

xattr_security.c

switch xattr_handler->set() to passing dentry and inode separately

2016-05-27 15:39:43 -04:00

xattr_trusted.c

switch xattr_handler->set() to passing dentry and inode separately

2016-05-27 15:39:43 -04:00

xattr_user.c

switch xattr_handler->set() to passing dentry and inode separately

2016-05-27 15:39:43 -04:00

xattr.c

ext4: include terminating u32 in size of xattr entries when expanding inodes

2023-05-15 10:49:37 +09:00

xattr.h

ext4: fix deadlock between inline_data and ext4_expand_extra_isize_ea()

2017-03-12 06:41:41 +01:00