Files
linux/fs
Bob Peterson 714dbaf2f8 gfs2: clean up iopen glock mess in gfs2_create_inode
[ Upstream commit 2c47c1be51 ]

Before this patch, gfs2_create_inode had a use-after-free for the
iopen glock in some error paths because it did this:

	gfs2_glock_put(io_gl);
fail_gunlock2:
	if (io_gl)
		clear_bit(GLF_INODE_CREATING, &io_gl->gl_flags);

In some cases, the io_gl was used for create and only had one
reference, so the glock might be freed before the clear_bit().
This patch tries to straighten it out by only jumping to the
error paths where iopen is properly set, and moving the
gfs2_glock_put after the clear_bit.

Signed-off-by: Bob Peterson <rpeterso@redhat.com>
Signed-off-by: Andreas Gruenbacher <agruenba@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2020-10-01 13:17:20 +02:00
..
2020-08-19 08:16:24 +02:00
2020-09-09 19:12:21 +02:00
2020-08-19 08:16:21 +02:00
2020-07-29 10:18:28 +02:00
2020-08-26 10:40:56 +02:00
2019-07-03 17:52:09 -04:00
2020-06-17 16:40:24 +02:00
2020-09-03 11:26:57 +02:00
2020-03-05 16:43:36 +01:00
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
2020-05-06 08:15:15 +02:00
2019-08-01 20:51:23 +02:00