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WARNING: CPU: 0 PID: 8490 at kernel/workqueue.c:4396 destroy_workqueue.cold+0x5/0x71 kernel/workqueue.c:4396
Modules linked in:
CPU: 0 PID: 8490 Comm: syz-executor.0 Not tainted 5.10.0-rc5-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:destroy_workqueue.cold+0x5/0x71 kernel/workqueue.c:4396
Code: 00 90 4a 89 f7 f1 89 c6 e8 01 81 00 00 c6 44 24 37 01 e9 cf f7 9a f8 48 c7 c7 80 f1 00 8b e8 18 ea 03 f9 eb c2 e8 d1 ac c2 f8 <0f> 0b 48 c7 c6 00 95 4a 89 48 c7 c7 40 90 4a 89 49 8d 96 60 01 00
RSP: 0018:ffffc900016bfce0 EFLAGS: 00010093
RAX: 0000000000000000 RBX: 0000000000000002 RCX: ffffffff81486793
RDX: ffff88803523c0c0 RSI: ffffffff88ad694f RDI: 0000000000000005
RBP: 000000000000000f R08: 0000000000000001 R09: 0000000000000003
R10: 0000000000000001 R11: 0000000000000000 R12: dffffc0000000000
R13: ffffe8ffffc87000 R14: ffff888023815400 R15: 0000000000000000
FS:  0000000002029940(0000) GS:ffff8880b9e00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f3291e523f8 CR3: 000000002b72f000 CR4: 00000000001506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 reiserfs_put_super+0x234/0x5c0 fs/reiserfs/super.c:631
 generic_shutdown_super+0x144/0x370 fs/super.c:464
 kill_block_super+0x97/0xf0 fs/super.c:1446
 deactivate_locked_super+0x94/0x160 fs/super.c:335
 deactivate_super+0xad/0xd0 fs/super.c:366
 cleanup_mnt+0x3a3/0x530 fs/namespace.c:1118
 task_work_run+0xdd/0x190 kernel/task_work.c:151
 tracehook_notify_resume include/linux/tracehook.h:188 [inline]
 exit_to_user_mode_loop kernel/entry/common.c:164 [inline]
 exit_to_user_mode_prepare+0x17e/0x1a0 kernel/entry/common.c:191
 syscall_exit_to_user_mode+0x38/0x260 kernel/entry/common.c:266
 entry_SYSCALL_64_after_hwframe+0x44/0xa9
RIP: 0033:0x4608e7
Code: 64 89 04 25 d0 02 00 00 58 5f ff d0 48 89 c7 e8 2f be ff ff 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 b8 a6 00 00 00 0f 05 <48> 3d 01 f0 ff ff 0f 83 ad 89 fb ff c3 66 2e 0f 1f 84 00 00 00 00
RSP: 002b:00007ffebc6bc8c8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00000000004608e7
RDX: 00000000004031f8 RSI: 0000000000000002 RDI: 00007ffebc6bc970
RBP: 000000000000035e R08: 0000000000000000 R09: 000000000000000b
R10: 0000000000000005 R11: 0000000000000246 R12: 00007ffebc6bda00
R13: 000000000202aa60 R14: 0000000000000000 R15: 00007ffebc6bda00