Osama Muhammad ee0586d73c gfs2: Fix kernel NULL pointer dereference in gfs2_rgrp_dump ...

[ Upstream commit 8877243bea ]

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: 72244b6bc7 ("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

…

acl.h

…

aops.c

gfs2: low-memory forced flush fixes

2023-09-19 12:22:56 +02:00

aops.h

…

bmap.c

…

bmap.h

…

dentry.c

…

dir.c

…

dir.h

…

export.c

…

file.c

…

gfs2.h

…

glock.c

…

glock.h

…

glops.c

…

glops.h

…

incore.h

…

inode.c

gfs2: Silence "suspicious RCU usage in gfs2_permission" warning

2023-11-28 16:56:22 +00:00

inode.h

…

Kconfig

…

lock_dlm.c

…

log.c

gfs2: low-memory forced flush fixes

2023-09-19 12:22:56 +02:00

log.h

…

lops.c

…

lops.h

…

main.c

…

Makefile

…

meta_io.c

…

meta_io.h

…

ops_fstype.c

…

quota.c

gfs2: ignore negated quota changes

2023-11-28 16:56:20 +00:00

quota.h

…

recovery.c

…

recovery.h

…

rgrp.c

gfs2: Fix kernel NULL pointer dereference in gfs2_rgrp_dump

2024-01-25 14:52:35 -08:00

rgrp.h

…

super.c

gfs2: fix an oops in gfs2_permission

2023-11-28 16:56:20 +00:00

super.h

…

sys.c

…

sys.h

…

trace_gfs2.h

…

trans.c

…

trans.h

…

util.c

…

util.h

…

xattr.c

…

xattr.h

…