microsoft
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WSL2-Linux-Kernel
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WSL2-Linux-Kernel/fs/ocfs2
История
Joseph Qi 7c5312fdb1 ocfs2: fix crash when mount with quota enabled 
commit de19433423 upstream.

There is a reported crash when mounting ocfs2 with quota enabled.

  RIP: 0010:ocfs2_qinfo_lock_res_init+0x44/0x50 [ocfs2]
  Call Trace:
    ocfs2_local_read_info+0xb9/0x6f0 [ocfs2]
    dquot_load_quota_sb+0x216/0x470
    dquot_load_quota_inode+0x85/0x100
    ocfs2_enable_quotas+0xa0/0x1c0 [ocfs2]
    ocfs2_fill_super.cold+0xc8/0x1bf [ocfs2]
    mount_bdev+0x185/0x1b0
    legacy_get_tree+0x27/0x40
    vfs_get_tree+0x25/0xb0
    path_mount+0x465/0xac0
    __x64_sys_mount+0x103/0x140

It is caused by when initializing dqi_gqlock, the corresponding dqi_type
and dqi_sb are not properly initialized.

This issue is introduced by commit 6c85c2c728, which wants to avoid
accessing uninitialized variables in error cases.  So make global quota
info properly initialized.

Link: https://lkml.kernel.org/r/20220323023644.40084-1-joseph.qi@linux.alibaba.com
Link: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1007141
Fixes: 6c85c2c728 ("ocfs2: quota_local: fix possible uninitialized-variable access in ocfs2_local_read_info()")
Signed-off-by: Joseph Qi <joseph.qi@linux.alibaba.com>
Reported-by: Dayvison <sathlerds@gmail.com>
Tested-by: Valentin Vidic <vvidic@valentin-vidic.from.hr>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
 		2022-04-08 14:22:56 +02:00
..
cluster ocfs2: remove redundant initialization of variable ret 2021-06-29 10:53:46 -07:00
dlm ocfs2: remove redundant assignment to pointer queue 2021-06-29 10:53:46 -07:00
dlmfs treewide: remove editor modelines and cruft 2021-05-07 00:26:34 -07:00
Kconfig
…
Makefile
…
acl.c vfs: add rcu argument to ->get_acl() callback 2021-08-18 22:08:24 +02:00
acl.h vfs: add rcu argument to ->get_acl() callback 2021-08-18 22:08:24 +02:00
alloc.c ocfs2: fix data corruption after conversion from inline format 2021-10-18 20:22:03 -10:00
alloc.h treewide: remove editor modelines and cruft 2021-05-07 00:26:34 -07:00
aops.c mm: require ->set_page_dirty to be explicitly wired up 2021-06-29 10:53:48 -07:00
aops.h treewide: remove editor modelines and cruft 2021-05-07 00:26:34 -07:00
blockcheck.c treewide: remove editor modelines and cruft 2021-05-07 00:26:34 -07:00
blockcheck.h treewide: remove editor modelines and cruft 2021-05-07 00:26:34 -07:00
buffer_head_io.c treewide: remove editor modelines and cruft 2021-05-07 00:26:34 -07:00
buffer_head_io.h treewide: remove editor modelines and cruft 2021-05-07 00:26:34 -07:00
dcache.c treewide: remove editor modelines and cruft 2021-05-07 00:26:34 -07:00
dcache.h treewide: remove editor modelines and cruft 2021-05-07 00:26:34 -07:00
dir.c treewide: remove editor modelines and cruft 2021-05-07 00:26:34 -07:00
dir.h treewide: remove editor modelines and cruft 2021-05-07 00:26:34 -07:00
dlmglue.c ocfs2: drop acl cache for directories too 2021-09-24 16:13:34 -07:00
dlmglue.h treewide: remove editor modelines and cruft 2021-05-07 00:26:34 -07:00
export.c treewide: remove editor modelines and cruft 2021-05-07 00:26:34 -07:00
export.h treewide: remove editor modelines and cruft 2021-05-07 00:26:34 -07:00
extent_map.c treewide: remove editor modelines and cruft 2021-05-07 00:26:34 -07:00
extent_map.h treewide: remove editor modelines and cruft 2021-05-07 00:26:34 -07:00
file.c ocfs2: fix data corruption on truncate 2021-11-18 19:15:51 +01:00
file.h treewide: remove editor modelines and cruft 2021-05-07 00:26:34 -07:00
filecheck.c ocfs2: fix snprintf() checking 2021-06-29 10:53:46 -07:00
filecheck.h treewide: remove editor modelines and cruft 2021-05-07 00:26:34 -07:00
heartbeat.c treewide: remove editor modelines and cruft 2021-05-07 00:26:34 -07:00
heartbeat.h treewide: remove editor modelines and cruft 2021-05-07 00:26:34 -07:00
inode.c treewide: remove editor modelines and cruft 2021-05-07 00:26:34 -07:00
inode.h treewide: remove editor modelines and cruft 2021-05-07 00:26:34 -07:00
ioctl.c ocfs2: convert to fileattr 2021-04-12 15:04:30 +02:00
ioctl.h ocfs2: convert to fileattr 2021-04-12 15:04:30 +02:00
journal.c ext4: add discard/zeroout flags to journal flush 2021-06-22 19:27:10 -04:00
journal.h treewide: remove editor modelines and cruft 2021-05-07 00:26:34 -07:00
localalloc.c treewide: remove editor modelines and cruft 2021-05-07 00:26:34 -07:00
localalloc.h treewide: remove editor modelines and cruft 2021-05-07 00:26:34 -07:00
locks.c fs: remove mandatory file locking support 2021-08-23 06:15:36 -04:00
locks.h treewide: remove editor modelines and cruft 2021-05-07 00:26:34 -07:00
mmap.c treewide: remove editor modelines and cruft 2021-05-07 00:26:34 -07:00
mmap.h
…
move_extents.c treewide: remove editor modelines and cruft 2021-05-07 00:26:34 -07:00
move_extents.h treewide: remove editor modelines and cruft 2021-05-07 00:26:34 -07:00
namei.c treewide: remove editor modelines and cruft 2021-05-07 00:26:34 -07:00
namei.h treewide: remove editor modelines and cruft 2021-05-07 00:26:34 -07:00
ocfs1_fs_compat.h treewide: remove editor modelines and cruft 2021-05-07 00:26:34 -07:00
ocfs2.h treewide: remove editor modelines and cruft 2021-05-07 00:26:34 -07:00
ocfs2_fs.h treewide: remove editor modelines and cruft 2021-05-07 00:26:34 -07:00
ocfs2_ioctl.h treewide: remove editor modelines and cruft 2021-05-07 00:26:34 -07:00
ocfs2_lockid.h treewide: remove editor modelines and cruft 2021-05-07 00:26:34 -07:00
ocfs2_lockingver.h treewide: remove editor modelines and cruft 2021-05-07 00:26:34 -07:00
ocfs2_trace.h
…
quota.h
…
quota_global.c ocfs2: fix crash when mount with quota enabled 2022-04-08 14:22:56 +02:00
quota_local.c ocfs2: fix crash when mount with quota enabled 2022-04-08 14:22:56 +02:00
refcounttree.c treewide: remove editor modelines and cruft 2021-05-07 00:26:34 -07:00
refcounttree.h treewide: remove editor modelines and cruft 2021-05-07 00:26:34 -07:00
reservations.c treewide: remove editor modelines and cruft 2021-05-07 00:26:34 -07:00
reservations.h treewide: remove editor modelines and cruft 2021-05-07 00:26:34 -07:00
resize.c treewide: remove editor modelines and cruft 2021-05-07 00:26:34 -07:00
resize.h treewide: remove editor modelines and cruft 2021-05-07 00:26:34 -07:00
slot_map.c treewide: remove editor modelines and cruft 2021-05-07 00:26:34 -07:00
slot_map.h treewide: remove editor modelines and cruft 2021-05-07 00:26:34 -07:00
stack_o2cb.c treewide: remove editor modelines and cruft 2021-05-07 00:26:34 -07:00
stack_user.c treewide: remove editor modelines and cruft 2021-05-07 00:26:34 -07:00
stackglue.c ocfs2: fix snprintf() checking 2021-06-29 10:53:46 -07:00
stackglue.h treewide: remove editor modelines and cruft 2021-05-07 00:26:34 -07:00
suballoc.c ocfs2: fix a deadlock when commit trans 2022-02-01 17:27:05 +01:00
suballoc.h treewide: remove editor modelines and cruft 2021-05-07 00:26:34 -07:00
super.c ocfs2: fix crash when initialize filecheck kobj fails 2022-03-23 09:16:40 +01:00
super.h treewide: remove editor modelines and cruft 2021-05-07 00:26:34 -07:00
symlink.c treewide: remove editor modelines and cruft 2021-05-07 00:26:34 -07:00
symlink.h treewide: remove editor modelines and cruft 2021-05-07 00:26:34 -07:00
sysfile.c treewide: remove editor modelines and cruft 2021-05-07 00:26:34 -07:00
sysfile.h treewide: remove editor modelines and cruft 2021-05-07 00:26:34 -07:00
uptodate.c treewide: remove editor modelines and cruft 2021-05-07 00:26:34 -07:00
uptodate.h treewide: remove editor modelines and cruft 2021-05-07 00:26:34 -07:00
xattr.c treewide: remove editor modelines and cruft 2021-05-07 00:26:34 -07:00
xattr.h treewide: remove editor modelines and cruft 2021-05-07 00:26:34 -07:00