Andrew Price 9126d2754c gfs2: Don't clear sb->s_fs_info in gfs2_sys_fs_add ... When gfs2_sys_fs_add() fails, it sets sb->s_fs_info to NULL on its error path (see commit 0d515210b6 ("GFS2: Add kobject release method")). The intention seems to be to prevent dereferencing sb->s_fs_info once the object pointed to has been deallocated, but that would be better achieved by setting the pointer to NULL in free_sbd(). As a consequence, when the call to gfs2_sys_fs_add() fails in gfs2_fill_super(), sdp = GFS2_SB(inode) will evaluate to NULL in iput() -> gfs2_drop_inode(), and accessing sdp->sd_flags will be a NULL pointer dereference. Fix that by only setting sb->s_fs_info to NULL when actually freeing the object pointed to in free_sbd(). Fixes: ae9f3bd825 ("gfs2: replace sd_aspace with sd_inode") Reported-by: syzbot+b12826218502df019f9d@syzkaller.appspotmail.com Signed-off-by: Andrew Price <anprice@redhat.com> Signed-off-by: Andreas Gruenbacher <agruenba@redhat.com>		2025-05-30 19:20:20 +02:00
..
acl.c	gfs2: convert to ctime accessor functions	2023-07-24 10:29:59 +02:00
acl.h	gfs2: No longer use 'extern' in function declarations	2023-11-06 01:51:26 +01:00
aops.c	gfs2: Don't start unnecessary transactions during log flush	2025-05-22 09:12:27 +02:00
aops.h	gfs2: Don't start unnecessary transactions during log flush	2025-05-22 09:12:27 +02:00
bmap.c	gfs2: Move gfs2_trans_add_databufs	2025-05-22 09:12:27 +02:00
bmap.h	gfs2: No longer use 'extern' in function declarations	2023-11-06 01:51:26 +01:00
dentry.c	gfs2_drevalidate(): use stable parent inode and name passed by caller	2025-01-27 19:25:24 -05:00
dir.c	gfs2: Improve gfs2_consist_inode() usage	2024-04-09 18:35:57 +02:00
dir.h	gfs2: No longer use 'extern' in function declarations	2023-11-06 01:51:26 +01:00
export.c	exportfs: Remove EXPORT_OP_ASYNC_LOCK	2024-10-01 17:01:08 +02:00
file.c	gfs2: some comment clarifications	2025-03-18 13:21:39 +01:00
gfs2.h	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 398	2019-06-05 17:37:12 +02:00
glock.c	gfs2: replace sd_aspace with sd_inode	2025-04-21 18:20:36 +02:00
glock.h	gfs2: Faster gfs2_upgrade_iopen_glock wakeups	2024-11-05 12:39:28 +01:00
glops.c	gfs2: No more gfs2_find_jhead caching	2025-05-22 09:12:27 +02:00
glops.h	gfs2: No longer use 'extern' in function declarations	2023-11-06 01:51:26 +01:00
incore.h	gfs2: replace sd_aspace with sd_inode	2025-04-21 18:20:36 +02:00
inode.c	gfs2: deallocate inodes in gfs2_create_inode	2025-04-24 23:10:05 +02:00
inode.h	gfs2: Move gfs2_dinode_dealloc	2025-04-21 18:20:36 +02:00
Kconfig	lib/crc: remove CONFIG_LIBCRC32C	2025-04-04 11:31:42 -07:00
lock_dlm.c	gfs2: only apply DLM_LKF_VALBLK if sb_lvbptr is not NULL	2025-04-21 18:20:36 +02:00
log.c	gfs2: Don't start unnecessary transactions during log flush	2025-05-22 09:12:27 +02:00
log.h	gfs2: Move gfs2_log_pointers_init	2025-05-22 09:12:27 +02:00
lops.c	gfs2: No more gfs2_find_jhead caching	2025-05-22 09:12:27 +02:00
lops.h	gfs2: No more gfs2_find_jhead caching	2025-05-22 09:12:27 +02:00
main.c	gfs2: use lockref_init for gl_lockref	2025-02-07 10:27:25 +01:00
Makefile	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
meta_io.c	gfs2: replace sd_aspace with sd_inode	2025-04-21 18:20:36 +02:00
meta_io.h	gfs2: replace sd_aspace with sd_inode	2025-04-21 18:20:36 +02:00
ops_fstype.c	gfs2: Don't clear sb->s_fs_info in gfs2_sys_fs_add	2025-05-30 19:20:20 +02:00
quota.c	lockref: remove count argument of lockref_init	2025-02-07 10:27:25 +01:00
quota.h	gfs2: reorder capability check last	2024-12-09 10:44:35 +01:00
recovery.c	gfs2: No more gfs2_find_jhead caching	2025-05-22 09:12:27 +02:00
recovery.h	gfs2: Simplify gfs2_log_pointers_init	2025-05-22 09:12:27 +02:00
rgrp.c	gfs2: Use get_random_u32 in gfs2_orlov_skip	2024-11-05 12:39:29 +01:00
rgrp.h	gfs2: No longer use 'extern' in function declarations	2023-11-06 01:51:26 +01:00
super.c	gfs2 changes	2025-05-26 12:35:08 -07:00
super.h	gfs2 fixes	2023-11-07 11:54:17 -08:00
sys.c	gfs2: Don't clear sb->s_fs_info in gfs2_sys_fs_add	2025-05-30 19:20:20 +02:00
sys.h	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 398	2019-06-05 17:37:12 +02:00
trace_gfs2.h	gfs2: Fix additional unlikely request cancelation race	2025-03-10 18:15:38 +01:00
trans.c	gfs2: Move gfs2_trans_add_databufs	2025-05-22 09:12:27 +02:00
trans.h	gfs2: Move gfs2_trans_add_databufs	2025-05-22 09:12:27 +02:00
util.c	gfs2: No more gfs2_find_jhead caching	2025-05-22 09:12:27 +02:00
util.h	gfs2: gfs2_freeze_unlock cleanup	2024-04-29 12:35:15 +02:00
xattr.c	gfs2: Move GIF_ALLOC_FAILED check out of gfs2_ea_dealloc	2025-04-21 18:20:36 +02:00
xattr.h	gfs2: Move GIF_ALLOC_FAILED check out of gfs2_ea_dealloc	2025-04-21 18:20:36 +02:00