UDF-fs: INFO Mounting volume 'LinuxUDF', timestamp 2022/11/22 14:59 (1000)
VFS: brelse: Trying to free free buffer
------------[ cut here ]------------
WARNING: CPU: 1 PID: 8020 at fs/buffer.c:1206 __brelse.part.0+0x11/0x14 fs/buffer.c:1206
Kernel panic - not syncing: panic_on_warn set ...

CPU: 1 PID: 8020 Comm: syz-executor.5 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
 __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:__brelse.part.0+0x11/0x14 fs/buffer.c:1206
RSP: 0018:ffff88809d7ffc30 EFLAGS: 00010082
RAX: 0000000000000027 RBX: ffff8880ba531cd8 RCX: 0000000000000000
RDX: 0000000000000000 RSI: ffffffff878bd020 RDI: ffffed1013afff7c
RBP: ffff888048600540 R08: 0000000000000027 R09: 0000000000000001
R10: 0000000000000000 R11: ffff8880a011c480 R12: dffffc0000000000
R13: ffff8880ba531d20 R14: 0000000000000001 R15: ffffffff81930ba0
 __brelse fs/buffer.c:1207 [inline]
 brelse include/linux/buffer_head.h:331 [inline]
 invalidate_bh_lru.cold+0xa/0xf fs/buffer.c:1447
 on_each_cpu_mask+0xda/0x210 kernel/smp.c:636
 on_each_cpu_cond+0xe6/0x160 kernel/smp.c:684
 kill_bdev fs/block_dev.c:97 [inline]
 __blkdev_put+0x242/0x800 fs/block_dev.c:1797
 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
 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: 0033:0x7f89b9e64517
RSP: 002b:00007ffccba53c78 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007f89b9e64517
RDX: 00007ffccba53d4b RSI: 000000000000000a RDI: 00007ffccba53d40
RBP: 00007ffccba53d40 R08: 00000000ffffffff R09: 00007ffccba53b10
R10: 0000555557250903 R11: 0000000000000246 R12: 00007f89b9ebdb24
R13: 00007ffccba54e00 R14: 0000555557250810 R15: 00007ffccba54e40
Kernel Offset: disabled
Rebooting in 86400 seconds..