REISERFS (device loop4): Created .reiserfs_priv - reserved for xattr storage.
REISERFS (device loop0): found reiserfs format "3.6" with non-standard journal
REISERFS (device loop0): using ordered data mode
reiserfs: using flush barriers
------------[ cut here ]------------
WARNING: CPU: 1 PID: 8005 at kernel/workqueue.c:4145 destroy_workqueue+0x240/0x710 kernel/workqueue.c:4145
REISERFS (device loop0): journal params: device loop0, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30
Kernel panic - not syncing: panic_on_warn set ...

CPU: 1 PID: 8005 Comm: syz-executor.3 Not tainted 4.14.302-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022
Call Trace:
 __dump_stack lib/dump_stack.c:17 [inline]
 dump_stack+0x1b2/0x281 lib/dump_stack.c:58
 panic+0x1f9/0x42d kernel/panic.c:183
REISERFS (device loop0): checking transaction log (loop0)
 __warn.cold+0x20/0x44 kernel/panic.c:547
 report_bug+0x208/0x250 lib/bug.c:183
 fixup_bug arch/x86/kernel/traps.c:177 [inline]
 fixup_bug arch/x86/kernel/traps.c:172 [inline]
 do_error_trap+0x195/0x2d0 arch/x86/kernel/traps.c:295
 invalid_op+0x1b/0x40 arch/x86/entry/entry_64.S:967
RIP: 0010:destroy_workqueue+0x240/0x710 kernel/workqueue.c:4145
RSP: 0018:ffff8880b1b07c98 EFLAGS: 00010297
RAX: ffff8880b2a964c0 RBX: ffff888098fd2540 RCX: 0000000000000000
RDX: 0000000000000000 RSI: 00000000ffffffff RDI: ffffe8ffffd97618
RBP: dffffc0000000000 R08: 0000000000000000 R09: 0000000000040030
R10: ffff8880b2a96d70 R11: ffff8880b2a964c0 R12: ffffe8ffffd97658
REISERFS (device loop0): Using r5 hash to sort names
R13: ffffe8ffffd97600 R14: ffff888098fd2560 R15: ffffe8ffffd97658
 reiserfs_put_super+0x205/0x560 fs/reiserfs/super.c:631
REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage.
 generic_shutdown_super+0x144/0x370 fs/super.c:446
 kill_block_super+0x95/0xe0 fs/super.c:1161
 deactivate_locked_super+0x6c/0xd0 fs/super.c:319
 deactivate_super+0x7f/0xa0 fs/super.c:350
 cleanup_mnt+0x186/0x2c0 fs/namespace.c:1183
 task_work_run+0x11f/0x190 kernel/task_work.c:113
 tracehook_notify_resume include/linux/tracehook.h:191 [inline]
 exit_to_usermode_loop+0x1ad/0x200 arch/x86/entry/common.c:164
REISERFS (device loop5): found reiserfs format "3.6" with non-standard journal
 prepare_exit_to_usermode arch/x86/entry/common.c:199 [inline]
 syscall_return_slowpath arch/x86/entry/common.c:270 [inline]
 do_syscall_64+0x4a3/0x640 arch/x86/entry/common.c:297
 entry_SYSCALL_64_after_hwframe+0x5e/0xd3
RIP: 0033:0x7fbdb19a4537
RSP: 002b:00007ffd60065838 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
REISERFS (device loop5): using ordered data mode
RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007fbdb19a4537
RDX: 00007ffd6006590b RSI: 000000000000000a RDI: 00007ffd60065900
RBP: 00007ffd60065900 R08: 00000000ffffffff R09: 00007ffd600656d0
R10: 000055555607f903 R11: 0000000000000246 R12: 00007fbdb19fdb24
R13: 00007ffd600669c0 R14: 000055555607f810 R15: 00007ffd60066a00
Kernel Offset: disabled
Rebooting in 86400 seconds..