diff options
| author | Heming Zhao <ocfs2-devel@oss.oracle.com> | 2022-08-15 11:57:54 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2023-01-18 13:42:06 +0300 |
| commit | 1140c3f7adbcca3e3d8344a626859e84efd473cf (patch) | |
| tree | f3173b769368ae95090e15a49c5accd755059b0c /fs/ocfs2/super.c | |
| parent | 2db88851fa4d78d71e97c80261b5337de87e8355 (diff) | |
| download | linux-1140c3f7adbcca3e3d8344a626859e84efd473cf.tar.xz | |
ocfs2: fix freeing uninitialized resource on ocfs2_dlm_shutdown
commit 550842cc60987b269e31b222283ade3e1b6c7fc8 upstream.
After commit 0737e01de9c4 ("ocfs2: ocfs2_mount_volume does cleanup job
before return error"), any procedure after ocfs2_dlm_init() fails will
trigger crash when calling ocfs2_dlm_shutdown().
ie: On local mount mode, no dlm resource is initialized. If
ocfs2_mount_volume() fails in ocfs2_find_slot(), error handling will call
ocfs2_dlm_shutdown(), then does dlm resource cleanup job, which will
trigger kernel crash.
This solution should bypass uninitialized resources in
ocfs2_dlm_shutdown().
Link: https://lkml.kernel.org/r/20220815085754.20417-1-heming.zhao@suse.com
Fixes: 0737e01de9c4 ("ocfs2: ocfs2_mount_volume does cleanup job before return error")
Signed-off-by: Heming Zhao <heming.zhao@suse.com>
Reviewed-by: Joseph Qi <joseph.qi@linux.alibaba.com>
Cc: Mark Fasheh <mark@fasheh.com>
Cc: Joel Becker <jlbec@evilplan.org>
Cc: Junxiao Bi <junxiao.bi@oracle.com>
Cc: Changwei Ge <gechangwei@live.cn>
Cc: Gang He <ghe@suse.com>
Cc: Jun Piao <piaojun@huawei.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'fs/ocfs2/super.c')
| -rw-r--r-- | fs/ocfs2/super.c | 3 |
1 files changed, 1 insertions, 2 deletions
diff --git a/fs/ocfs2/super.c b/fs/ocfs2/super.c index bf4291e0c6bf..fb4104cb1c5b 100644 --- a/fs/ocfs2/super.c +++ b/fs/ocfs2/super.c @@ -1922,8 +1922,7 @@ static void ocfs2_dismount_volume(struct super_block *sb, int mnt_err) !ocfs2_is_hard_readonly(osb)) hangup_needed = 1; - if (osb->cconn) - ocfs2_dlm_shutdown(osb, hangup_needed); + ocfs2_dlm_shutdown(osb, hangup_needed); ocfs2_blockcheck_stats_debugfs_remove(&osb->osb_ecc_stats); debugfs_remove_recursive(osb->osb_debug_root); |