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Osama Muhammad ee0586d73c 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 14:52:35 -08:00
..
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
aops.c
gfs2: low-memory forced flush fixes
2023-09-19 12:22:56 +02:00
aops.h
…
bmap.c
gfs2: Always check inode size of inline inodes
2023-02-09 11:26:48 +01:00
bmap.h
gfs2: Clean up gfs2_unstuff_dinode
2021-06-29 10:56:51 +02:00
dentry.c
…
dir.c
gfs2: Clean up gfs2_unstuff_dinode
2021-06-29 10:56:51 +02:00
dir.h
…
export.c
…
file.c
gfs2: Fix gfs2_file_buffered_write endless loop workaround
2022-07-12 16:34:59 +02:00
gfs2.h
…
glock.c
gfs2: Introduce flag for glock holder auto-demotion
2022-05-01 17:22:30 +02:00
glock.h
gfs2: Introduce flag for glock holder auto-demotion
2022-05-01 17:22:30 +02:00
glops.c
gfs2: Fix inode height consistency check
2023-05-24 17:36:45 +01:00
glops.h
…
incore.h
gfs2: Eliminate ip->i_gh
2022-05-01 17:22:30 +02:00
inode.c
gfs2: Silence "suspicious RCU usage in gfs2_permission" warning
2023-11-28 16:56:22 +00:00
inode.h
Changes in gfs2:
2021-04-29 10:33:35 -07:00
Kconfig
…
lock_dlm.c
gfs2: Don't call dlm after protocol is unmounted
2021-08-20 09:03:46 -05:00
log.c
gfs2: low-memory forced flush fixes
2023-09-19 12:22:56 +02:00
log.h
gfs2: Clean up revokes on normal withdraws
2021-05-20 13:31:37 +02:00
lops.c
gfs2: be more verbose replaying invalid rgrp blocks
2021-08-19 12:31:17 -05:00
lops.h
gfs2: Clean up revokes on normal withdraws
2021-05-20 13:31:37 +02:00
main.c
…
Makefile
…
meta_io.c
gfs2: don't stop reads while withdraw in progress
2021-08-20 09:03:46 -05:00
meta_io.h
gfs2: Turn gfs2_meta_indirect_buffer into gfs2_meta_buffer
2021-04-03 21:38:12 +02:00
ops_fstype.c
gfs2: Switch from strlcpy to strscpy
2022-11-26 09:24:51 +01:00
quota.c
gfs2: ignore negated quota changes
2023-11-28 16:56:20 +00:00
quota.h
…
recovery.c
gfs2: Fix fall-through warnings for Clang
2021-04-20 22:38:21 +02:00
recovery.h
…
rgrp.c
gfs2: Fix kernel NULL pointer dereference in gfs2_rgrp_dump
2024-01-25 14:52:35 -08:00
rgrp.h
gfs2: gfs2_setattr_size error path fix
2022-04-08 14:24:10 +02:00
super.c
gfs2: fix an oops in gfs2_permission
2023-11-28 16:56:20 +00:00
super.h
gfs2: Don't release and reacquire local statfs bh
2021-08-20 09:03:46 -05:00
sys.c
gfs2: Add new sysfs file for gfs2 status
2021-04-08 15:07:21 +02:00
sys.h
…
trace_gfs2.h
gfs2: Add per-reservation reserved block accounting
2021-02-17 19:30:26 +01:00
trans.c
gfs2: fix use-after-free in trans_drain
2021-03-07 17:04:55 +01:00
trans.h
Merge branches 'rgrp-glock-sharing' and 'gfs2-revoke' from https://git.kernel.org/pub/scm/linux/kernel/git/gfs2/linux-gfs2.git
2021-02-23 18:54:22 +01:00
util.c
gfs2: Mark journal inodes as "don't cache"
2021-08-20 09:03:46 -05:00
util.h
gfs2: don't stop reads while withdraw in progress
2021-08-20 09:03:46 -05:00
xattr.c
gfs2: Fix a number of kernel-doc warnings
2021-04-09 22:14:13 +02:00
xattr.h
…