chenying a701ae9a0d ovl: fix BUG_ON() in may_delete() when called from ovl_cleanup()
commit 52d5a0c6bd8a89f460243ed937856354f8f253a3 upstream.

If function ovl_instantiate() returns an error, ovl_cleanup will be called
and try to remove newdentry from wdir, but the newdentry has been moved to
udir at this time.  This will causes BUG_ON(victim->d_parent->d_inode !=
dir) in fs/namei.c:may_delete.

Signed-off-by: chenying <chenying.kernel@bytedance.com>
Fixes: 01b39dcc9568 ("ovl: use inode_insert5() to hash a newly created inode")
Link: https://lore.kernel.org/linux-unionfs/e6496a94-a161-dc04-c38a-d2544633acb4@bytedance.com/
Cc: <stable@vger.kernel.org> # v4.18
Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-09-22 12:26:37 +02:00
..
2020-11-05 11:43:34 +01:00
2019-09-19 09:42:37 -07:00
2021-07-14 16:53:17 +02:00
2021-09-22 12:26:25 +02:00
2021-09-15 09:47:41 +02:00
2021-09-15 09:47:35 +02:00
2021-08-04 12:27:37 +02:00
2020-06-17 16:40:24 +02:00
2020-10-01 13:17:19 +02:00
2019-08-07 21:51:47 -04:00
2020-03-25 08:25:58 +01:00
2019-12-17 19:55:30 +01:00
2019-09-18 16:59:14 -07:00
2019-09-18 16:59:14 -07:00
2019-08-01 20:51:23 +02:00