Osama Muhammad 067a7c48c2 gfs2: Fix kernel NULL pointer dereference in gfs2_rgrp_dump
[ Upstream commit 8877243beafa7c6bfc42022cbfdf9e39b25bd4fa ]

Syzkaller has reported a NULL pointer dereference when accessing
rgd->rd_rgl in gfs2_rgrp_dump().  This can happen when creating
rgd->rd_gl fails in read_rindex_entry().  Add a NULL pointer check in
gfs2_rgrp_dump() to prevent that.

Reported-and-tested-by: syzbot+da0fc229cc1ff4bb2e6d@syzkaller.appspotmail.com
Link: https://syzkaller.appspot.com/bug?extid=da0fc229cc1ff4bb2e6d
Fixes: 72244b6bc752 ("gfs2: improve debug information when lvb mismatches are found")
Signed-off-by: Osama Muhammad <osmtendev@gmail.com>
Signed-off-by: Andreas Gruenbacher <agruenba@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2024-01-25 15:35:17 -08:00
..
2023-08-29 20:21:42 -07:00
2023-08-29 20:21:42 -07:00
2023-08-28 11:39:14 -07:00
2023-08-29 20:21:42 -07:00
2023-08-29 20:21:42 -07:00
2023-10-27 16:44:58 -10:00
2023-08-28 09:31:32 -07:00
2023-08-28 11:04:18 -07:00
2023-08-28 10:17:14 -07:00
2023-08-29 20:21:42 -07:00
2023-08-29 20:21:42 -07:00
2023-08-29 20:21:42 -07:00
2023-08-29 20:21:42 -07:00
2023-08-29 20:21:42 -07:00
2023-08-29 20:21:42 -07:00
2023-08-29 20:21:42 -07:00
2023-09-01 09:43:18 -07:00
2023-08-29 17:45:22 -04:00
2023-08-29 20:21:42 -07:00
2024-01-15 18:57:06 +01:00
2023-08-31 12:07:34 -05:00
2023-08-29 20:21:42 -07:00
2023-10-19 09:10:18 -07:00
2023-08-29 20:21:42 -07:00
2023-08-29 20:21:42 -07:00
2023-08-29 20:21:42 -07:00
2023-08-29 20:21:42 -07:00
2023-08-29 20:21:42 -07:00
\n
2023-08-30 12:10:50 -07:00
2023-08-29 20:21:42 -07:00
2023-08-28 09:31:32 -07:00
2023-08-28 11:59:52 -07:00
2023-08-28 10:17:14 -07:00
2023-06-28 20:35:21 -07:00
2023-06-26 09:50:21 -07:00
2023-07-26 14:56:07 +02:00
2023-08-08 19:36:51 +02:00
2023-08-28 10:17:14 -07:00
2023-08-21 13:46:25 -07:00
2023-08-14 18:48:02 +02:00
2023-08-29 20:21:42 -07:00
2023-08-28 11:04:18 -07:00
2023-08-29 20:21:42 -07:00
2023-08-19 12:12:12 +02:00
2023-08-31 15:32:18 -07:00
2023-08-02 09:13:09 -06:00
2023-07-13 10:28:04 +02:00
2023-08-15 08:32:45 +02:00
2023-08-31 12:47:15 +02:00