------------[ cut here ]------------
ODEBUG: free active (active state 0) object: ffff8880368b85a0 object type: work_struct hint: gfs2_withdraw_func+0x0/0x430 fs/gfs2/util.c:-1
WARNING: lib/debugobjects.c:632 at debug_print_object lib/debugobjects.c:629 [inline], CPU#1: syz-executor/8002
WARNING: lib/debugobjects.c:632 at __debug_check_no_obj_freed lib/debugobjects.c:1116 [inline], CPU#1: syz-executor/8002
WARNING: lib/debugobjects.c:632 at debug_check_no_obj_freed+0x405/0x550 lib/debugobjects.c:1146, CPU#1: syz-executor/8002
Modules linked in:
CPU: 1 UID: 0 PID: 8002 Comm: syz-executor Tainted: G             L      syzkaller #0 PREEMPT(full) 
Tainted: [L]=SOFTLOCKUP
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
RIP: 0010:debug_print_object lib/debugobjects.c:629 [inline]
RIP: 0010:__debug_check_no_obj_freed lib/debugobjects.c:1116 [inline]
RIP: 0010:debug_check_no_obj_freed+0x44a/0x550 lib/debugobjects.c:1146
Code: 89 44 24 20 e8 87 34 77 fd 48 8b 44 24 20 4c 8b 4d 00 4c 89 ef 48 c7 c6 c0 b8 27 8c 48 c7 c2 40 be 27 8c 8b 0c 24 4d 89 f8 50 <67> 48 0f b9 3a 48 83 c4 08 4c 8b 6c 24 18 48 b9 00 00 00 00 00 fc
RSP: 0018:ffffc90016a8fc08 EFLAGS: 00010246
RAX: ffffffff84247d20 RBX: ffffffff9a57de88 RCX: 0000000000000000
RDX: ffffffff8c27be40 RSI: ffffffff8c27b8c0 RDI: ffffffff901c69e0
RBP: ffffffff8bcb5f00 R08: ffff8880368b85a0 R09: ffffffff8bcb7080
R10: dffffc0000000000 R11: ffffffff818e7900 R12: ffff8880368ba000
R13: ffffffff901c69e0 R14: ffff8880368b8000 R15: ffff8880368b85a0
FS:  00005555860cf500(0000) GS:ffff888125561000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055df33d694b0 CR3: 000000004c3f4000 CR4: 0000000000350ef0
Call Trace:
 <TASK>
 slab_free_hook mm/slub.c:2623 [inline]
 slab_free mm/slub.c:6168 [inline]
 kfree+0x13a/0x630 mm/slub.c:6486
 generic_shutdown_super+0x13d/0x2d0 fs/super.c:646
 kill_block_super+0x44/0x90 fs/super.c:1725
 deactivate_locked_super+0xbc/0x130 fs/super.c:476
 cleanup_mnt+0x437/0x4d0 fs/namespace.c:1312
 task_work_run+0x1d9/0x270 kernel/task_work.c:233
 resume_user_mode_work include/linux/resume_user_mode.h:50 [inline]
 __exit_to_user_mode_loop kernel/entry/common.c:67 [inline]
 exit_to_user_mode_loop+0xed/0x480 kernel/entry/common.c:98
 __exit_to_user_mode_prepare include/linux/irq-entry-common.h:226 [inline]
 syscall_exit_to_user_mode_prepare include/linux/irq-entry-common.h:256 [inline]
 syscall_exit_to_user_mode include/linux/entry-common.h:325 [inline]
 do_syscall_64+0x32d/0xf80 arch/x86/entry/syscall_64.c:100
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f1c6259d9d7
Code: a2 c7 05 1c ed 24 00 00 00 00 00 eb 96 e8 e1 12 00 00 90 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8
RSP: 002b:00007ffe99755e78 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
RAX: 0000000000000000 RBX: 00007f1c62631f90 RCX: 00007f1c6259d9d7
RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffe99755f30
RBP: 00007ffe99755f30 R08: 00007ffe99756f30 R09: 00000000ffffffff
R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffe99756fc0
R13: 00007f1c62631f90 R14: 000000000005b9fa R15: 00007ffe99757000
 </TASK>
----------------
Code disassembly (best guess):
   0:	89 44 24 20          	mov    %eax,0x20(%rsp)
   4:	e8 87 34 77 fd       	call   0xfd773490
   9:	48 8b 44 24 20       	mov    0x20(%rsp),%rax
   e:	4c 8b 4d 00          	mov    0x0(%rbp),%r9
  12:	4c 89 ef             	mov    %r13,%rdi
  15:	48 c7 c6 c0 b8 27 8c 	mov    $0xffffffff8c27b8c0,%rsi
  1c:	48 c7 c2 40 be 27 8c 	mov    $0xffffffff8c27be40,%rdx
  23:	8b 0c 24             	mov    (%rsp),%ecx
  26:	4d 89 f8             	mov    %r15,%r8
  29:	50                   	push   %rax
* 2a:	67 48 0f b9 3a       	ud1    (%edx),%rdi <-- trapping instruction
  2f:	48 83 c4 08          	add    $0x8,%rsp
  33:	4c 8b 6c 24 18       	mov    0x18(%rsp),%r13
  38:	48                   	rex.W
  39:	b9 00 00 00 00       	mov    $0x0,%ecx
  3e:	00 fc                	add    %bh,%ah