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WARNING: CPU: 1 PID: 8454 at kernel/workqueue.c:4407 destroy_workqueue.cold+0x5/0x71 kernel/workqueue.c:4407
Modules linked in:
CPU: 1 PID: 8454 Comm: syz-executor.0 Not tainted 5.13.0-rc6-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:4407
Code: 1d f4 8c f8 b9 e8 03 00 00 31 d2 48 c7 c7 a0 c0 6a 89 f7 f1 89 c6 e8 5d 85 00 00 c6 44 24 2f 01 e9 15 57 75 f8 e8 a7 5a 9e f8 <0f> 0b 48 c7 c6 a0 c5 6a 89 48 c7 c7 e0 c0 6a 89 49 8d 96 60 01 00
RSP: 0018:ffffc900016c7cd0 EFLAGS: 00010093
RAX: 0000000000000000 RBX: 0000000000000002 RCX: 0000000000000000
RDX: ffff888039c34140 RSI: ffffffff88d5b729 RDI: 0000000000000003
RBP: 000000000000000f R08: 0000000000000001 R09: 0000000000000003
R10: ffffffff814b1513 R11: 0000000000084087 R12: dffffc0000000000
R13: ffffe8ffffdab800 R14: ffff8880728ec800 R15: 0000000000000000
FS:  00000000018be400(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fcb7dcb2000 CR3: 00000000326f1000 CR4: 00000000001526e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 000000000000000f DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 reiserfs_put_super+0x234/0x5c0 fs/reiserfs/super.c:631
 generic_shutdown_super+0x14c/0x370 fs/super.c:465
 kill_block_super+0x97/0xf0 fs/super.c:1395
 deactivate_locked_super+0x94/0x160 fs/super.c:335
 deactivate_super+0xad/0xd0 fs/super.c:366
 cleanup_mnt+0x3a2/0x540 fs/namespace.c:1136
 task_work_run+0xdd/0x1a0 kernel/task_work.c:164
 tracehook_notify_resume include/linux/tracehook.h:189 [inline]
 exit_to_user_mode_loop kernel/entry/common.c:175 [inline]
 exit_to_user_mode_prepare+0x281/0x290 kernel/entry/common.c:209
 __syscall_exit_to_user_mode_work kernel/entry/common.c:291 [inline]
 syscall_exit_to_user_mode+0x19/0x60 kernel/entry/common.c:302
 do_syscall_64+0x47/0xb0 arch/x86/entry/common.c:57
 entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x467a37
Code: ff d0 48 89 c7 b8 3c 00 00 00 0f 05 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48 83 c8 ff c3 66 0f 1f 44 00 00 b8 a6 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ffea0f1e248 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000467a37
RDX: 00007ffea0f1e31c RSI: 0000000000000002 RDI: 00007ffea0f1e310
RBP: 00007ffea0f1e310 R08: 00000000ffffffff R09: 00007ffea0f1e0e0
R10: 00000000018bf8e3 R11: 0000000000000246 R12: 00000000004bee70
R13: 00007ffea0f1f3e0 R14: 00000000018bf810 R15: 00007ffea0f1f420