WARNING: CPU: 1 PID: 8475 at fs/block_dev.c:1899 __blkdev_put+0x597/0x700 fs/block_dev.c:1923
Kernel panic - not syncing: panic_on_warn set ...
CPU: 1 PID: 8475 Comm: systemd-udevd Not tainted 5.3.0-rc3-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x165/0x21a lib/dump_stack.c:113
 panic+0x223/0x4dc kernel/panic.c:219
 __warn.cold.7+0x1b/0x37 kernel/panic.c:576
 report_bug+0x1a4/0x200 lib/bug.c:186
 fixup_bug arch/x86/kernel/traps.c:179 [inline]
 do_error_trap+0x11b/0x200 arch/x86/kernel/traps.c:272
 do_invalid_op+0x36/0x40 arch/x86/kernel/traps.c:291
 invalid_op+0x23/0x30 arch/x86/entry/entry_64.S:1026
RIP: 0010:__blkdev_put+0x597/0x700 fs/block_dev.c:1899
Code: ff ff 8b b5 3c ff ff ff ba 01 00 00 00 4c 89 e7 e8 7e fa ff ff e9 c9 fd ff ff 48 c7 85 50 ff ff ff 08 00 00 00 e9 28 fc ff ff <0f> 0b e9 c6 fb ff ff e8 dd 3b a6 01 48 8b bd 40 ff ff ff e8 01 f8
RSP: 0018:ffff888074fbfcb0 EFLAGS: 00010202
RAX: 0000000000000000 RBX: 1ffff1100e9f7f9f RCX: 0000000000000000
RDX: 0000000000000002 RSI: 0000000000000008 RDI: ffff8880a54717a8
RBP: ffff888074fbfda0 R08: ffffed1014a8e2e4 R09: ffffed1014a8e2e4
R10: ffff888074fbfca0 R11: ffff8880a547171f R12: ffff8880a5471704
R13: 00000000080a005d R14: 00000000080a005d R15: ffff8880a5471700
 blkdev_put+0x73/0x480 fs/block_dev.c:1969
 blkdev_close+0x88/0xd0 fs/block_dev.c:1976
 __fput+0x25a/0x780 fs/file_table.c:280
 ____fput+0x9/0x10 fs/file_table.c:313
 task_work_run+0x108/0x180 kernel/task_work.c:113
 tracehook_notify_resume include/linux/tracehook.h:188 [inline]
 exit_to_usermode_loop+0x1f2/0x2e0 arch/x86/entry/common.c:163
 prepare_exit_to_usermode arch/x86/entry/common.c:194 [inline]
 syscall_return_slowpath arch/x86/entry/common.c:274 [inline]
 do_syscall_64+0x462/0x540 arch/x86/entry/common.c:299
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x7f4e120ab270
Code: 73 01 c3 48 8b 0d 38 7d 20 00 f7 d8 64 89 01 48 83 c8 ff c3 66 0f 1f 44 00 00 83 3d 59 c1 20 00 00 75 10 b8 03 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 31 c3 48 83 ec 08 e8 ee fb ff ff 48 89 04 24
RSP: 002b:00007ffe5df62c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000003
RAX: 0000000000000000 RBX: 0000000000000007 RCX: 00007f4e120ab270
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000007
RBP: 00007f4e12f64710 R08: 000055b91eaec140 R09: 000055b91eaebf00
R10: 00007f4e12f648c0 R11: 0000000000000246 R12: 0000000000000000
R13: 000055b91eb00ed0 R14: 0000000000000003 R15: 000000000000000e
Kernel Offset: disabled
Rebooting in 86400 seconds..