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Osama Muhammad d69d7804cf 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 15:27:22 -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 12:27:58 +02:00
aops.h
…
bmap.c
gfs2: Always check inode size of inline inodes
2023-02-09 11:28:27 +01:00
bmap.h
gfs2: Clean up gfs2_unstuff_dinode
2021-06-29 10:56:51 +02:00
dentry.c
…
dir.c
gfs2 fixes
2022-08-06 14:44:49 -07:00
dir.h
…
export.c
Change calling conventions for filldir_t
2022-08-17 17:25:04 -04:00
file.c
gfs2: Fix duplicate should_fault_in_pages() call
2023-07-19 16:21:54 +02:00
gfs2.h
…
glock.c
gfs2: Partially revert gfs2_inode_lookup change
2022-12-31 13:32:45 +01:00
glock.h
gfs2: Merge branch 'for-next.nopid' into for-next
2022-10-09 22:56:28 +02:00
glops.c
gfs2: Fix inode height consistency check
2023-05-24 17:32:37 +01:00
glops.h
…
incore.h
gfs2: Make go_instantiate take a glock
2022-06-29 16:59:07 +02:00
inode.c
gfs2: Silence "suspicious RCU usage in gfs2_permission" warning
2023-11-28 17:07:04 +00:00
inode.h
gfs2: Convert to release_folio
2022-05-09 23:12:33 -04:00
Kconfig
…
lock_dlm.c
fs: dlm: remove DLM_LSFL_FS from uapi
2022-08-23 14:54:54 -05:00
log.c
gfs2: low-memory forced flush fixes
2023-09-19 12:27:58 +02:00
log.h
fs/gfs2: Use the enum req_op and blk_opf_t types
2022-07-14 12:14:32 -06:00
lops.c
Folio changes for 6.0
2022-08-03 10:35:43 -07:00
lops.h
fs/gfs2: Use the enum req_op and blk_opf_t types
2022-07-14 12:14:32 -06:00
main.c
gfs2: Register fs after creating workqueues
2022-09-20 17:53:54 +02:00
Makefile
…
meta_io.c
gfs2: replace ll_rw_block()
2022-09-11 20:26:06 -07:00
meta_io.h
gfs2: Use container_of() for gfs2_glock(aspace)
2022-05-24 21:29:14 +02:00
ops_fstype.c
gfs2: Merge branch 'for-next.nopid' into for-next
2022-10-09 22:56:28 +02:00
quota.c
gfs2: ignore negated quota changes
2023-11-28 17:07:02 +00:00
quota.h
…
recovery.c
gfs2: replace 'found' with dedicated list iterator variable
2022-05-14 03:05:55 +02:00
recovery.h
…
rgrp.c
gfs2: Fix kernel NULL pointer dereference in gfs2_rgrp_dump
2024-01-25 15:27:22 -08:00
rgrp.h
Merge part of branch 'for-next.instantiate' into for-next
2022-08-05 18:37:03 +02:00
super.c
gfs2: fix an oops in gfs2_permission
2023-11-28 17:07:02 +00:00
super.h
gfs2: Don't release and reacquire local statfs bh
2021-08-20 09:03:46 -05:00
sys.c
block: remove genhd.h
2022-02-02 07:49:59 -07:00
sys.h
…
trace_gfs2.h
gfs2: Remove 'first' trace_gfs2_promote argument
2021-10-25 08:42:19 +02:00
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: Merge branch 'for-next.nopid' into for-next
2022-10-09 22:56:28 +02:00
util.h
gfs2: don't stop reads while withdraw in progress
2021-08-20 09:03:46 -05:00
xattr.c
gfs2: Minor gfs2_glock_nq_m cleanup
2022-06-28 20:38:15 +02:00
xattr.h
…