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Osama Muhammad efc8ef87ab 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 14:34:24 -08:00
..
acl.c
…
acl.h
…
aops.c
treewide: Remove uninitialized_var() usage
2023-06-09 10:29:01 +02:00
aops.h
…
bmap.c
treewide: Remove uninitialized_var() usage
2023-06-09 10:29:01 +02:00
bmap.h
…
dentry.c
gfs2: untangle the logic in gfs2_drevalidate
2019-09-03 09:42:41 +02:00
dir.c
gfs2: Delete an unnecessary check before brelse()
2019-09-04 20:22:17 +02:00
dir.h
gfs2: Delete an unnecessary check before brelse()
2019-09-04 20:22:17 +02:00
export.c
…
file.c
gfs2: Prevent direct-I/O write fallback errors from getting lost
2021-06-18 09:58:58 +02:00
gfs2.h
…
glock.c
gfs2: Fix use-after-free in gfs2_glock_shrink_scan
2021-06-18 09:58:59 +02:00
glock.h
gfs2: Use async glocks for rename
2019-09-04 20:22:17 +02:00
glops.c
gfs2: Fix inode height consistency check
2023-05-30 12:44:03 +01:00
glops.h
…
incore.h
gfs2: use-after-free in sysfs deregistration
2020-11-05 11:43:21 +01:00
inode.c
gfs2: clean up iopen glock mess in gfs2_create_inode
2020-10-01 13:17:20 +02:00
inode.h
…
Kconfig
…
lock_dlm.c
gfs2: Don't call dlm after protocol is unmounted
2021-09-22 12:26:33 +02:00
log.c
gfs2: initialize transaction tr_ailX_lists earlier
2020-09-23 12:40:33 +02:00
log.h
gfs2: Do log_flush in gfs2_ail_empty_gl even if ail list is empty
2020-04-17 10:50:03 +02:00
lops.c
treewide: Remove uninitialized_var() usage
2023-06-09 10:29:01 +02:00
lops.h
…
main.c
…
Makefile
…
meta_io.c
…
meta_io.h
…
ops_fstype.c
gfs2: Switch from strlcpy to strscpy
2022-11-25 17:42:22 +01:00
quota.c
gfs2: ignore negated quota changes
2023-11-28 16:50:15 +00:00
quota.h
gfs2: move privileged user check to gfs2_quota_lock_check
2020-06-03 08:21:09 +02:00
recovery.c
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recovery.h
…
rgrp.c
gfs2: Fix kernel NULL pointer dereference in gfs2_rgrp_dump
2024-01-25 14:34:24 -08:00
rgrp.h
…
super.c
gfs2: Fix possible data races in gfs2_show_options()
2023-08-30 16:27:10 +02:00
super.h
gfs2: Convert gfs2 to fs_context
2019-09-18 22:47:05 -04:00
sys.c
gfs2: use-after-free in sysfs deregistration
2020-11-05 11:43:21 +01:00
sys.h
…
trace_gfs2.h
…
trans.c
gfs2: initialize transaction tr_ailX_lists earlier
2020-09-23 12:40:33 +02:00
trans.h
…
util.c
gfs2: Fix possible fs name overflows
2019-09-03 09:42:41 +02:00
util.h
…
xattr.c
…
xattr.h
…