syzbot

 </TASK>
gfs2: fsid=syz:syz.s: about to withdraw this file system
gfs2: fsid=syz:syz.s: Error checking journal for spectator mount.
------------[ cut here ]------------
ODEBUG: free active (active state 0) object: ffff8880312b85a0 object type: work_struct hint: gfs2_withdraw_func+0x0/0x430 fs/gfs2/util.c:-1
WARNING: lib/debugobjects.c:615 at debug_print_object+0x16b/0x1e0 lib/debugobjects.c:612, CPU#1: syz.0.17/6051
Modules linked in:
CPU: 1 UID: 0 PID: 6051 Comm: syz.0.17 Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/02/2025
RIP: 0010:debug_print_object+0x16b/0x1e0 lib/debugobjects.c:612
Code: 4c 89 ff e8 27 85 8a fd 4d 8b 0f 48 c7 c7 00 89 c0 8b 48 8b 34 24 4c 89 ea 89 e9 4d 89 f0 41 54 e8 0a ed e7 fc 48 83 c4 08 90 <0f> 0b 90 90 ff 05 47 c8 02 0b 48 83 c4 08 5b 41 5c 41 5d 41 5e 41
RSP: 0018:ffffc90003c2f8a0 EFLAGS: 00010296
RAX: 585b1757e39a9200 RBX: dffffc0000000000 RCX: ffff888025909e40
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000002
RBP: 0000000000000000 R08: 0000000000000003 R09: 0000000000000004
R10: dffffc0000000000 R11: fffffbfff1bfa6c0 R12: ffffffff8404d450
R13: ffffffff8bc08a80 R14: ffff8880312b85a0 R15: ffffffff8b69e000
FS:  000055557dbaa500(0000) GS:ffff888125dfe000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fb1c7dca000 CR3: 0000000077e08000 CR4: 00000000003526f0
Call Trace:
 <TASK>
 __debug_check_no_obj_freed lib/debugobjects.c:1099 [inline]
 debug_check_no_obj_freed+0x3a2/0x470 lib/debugobjects.c:1129
 slab_free_hook mm/slub.c:2461 [inline]
 slab_free mm/slub.c:6619 [inline]
 kfree+0x115/0x6d0 mm/slub.c:6826
 free_sbd fs/gfs2/ops_fstype.c:72 [inline]
 gfs2_fill_super+0x1552/0x2230 fs/gfs2/ops_fstype.c:1317
 get_tree_bdev_flags+0x40e/0x4d0 fs/super.c:1691
 gfs2_get_tree+0x51/0x1e0 fs/gfs2/ops_fstype.c:1333
 vfs_get_tree+0x92/0x2b0 fs/super.c:1751
 fc_mount fs/namespace.c:1208 [inline]
 do_new_mount_fc fs/namespace.c:3651 [inline]
 do_new_mount+0x302/0xa10 fs/namespace.c:3727
 do_mount fs/namespace.c:4050 [inline]
 __do_sys_mount fs/namespace.c:4238 [inline]
 __se_sys_mount+0x313/0x410 fs/namespace.c:4215
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xfa/0xfa0 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f61b0d9076a
Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ffc250f3438 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007ffc250f34c0 RCX: 00007f61b0d9076a
RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007ffc250f3480
RBP: 0000200000000400 R08: 00007ffc250f34c0 R09: 0000000000200001
R10: 0000000000200001 R11: 0000000000000246 R12: 0000200000012500
R13: 00007ffc250f3480 R14: 00000000000125d5 R15: 0000200000000240
 </TASK>