WARNING: CPU: 1 PID: 8071 at net/key/af_key.c:111 pfkey_sock_destruct+0x574/0x610 net/key/af_key.c:111
kobject: 'loop3' (00000000061c5c54): kobject_uevent_env
Kernel panic - not syncing: panic_on_warn set ...

CPU: 1 PID: 8071 Comm: syz-executor5 Not tainted 4.19.0-rc5+ #259
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+0x1c4/0x2b4 lib/dump_stack.c:113
 panic+0x238/0x4e7 kernel/panic.c:184
 __warn.cold.8+0x163/0x1ba kernel/panic.c:536
kobject: 'loop3' (00000000061c5c54): fill_kobj_path: path = '/devices/virtual/block/loop3'
 report_bug+0x254/0x2d0 lib/bug.c:186
 fixup_bug arch/x86/kernel/traps.c:178 [inline]
 do_error_trap+0x1fc/0x4d0 arch/x86/kernel/traps.c:296
 do_invalid_op+0x1b/0x20 arch/x86/kernel/traps.c:316
 invalid_op+0x14/0x20 arch/x86/entry/entry_64.S:993
RIP: 0010:pfkey_sock_destruct+0x574/0x610 net/key/af_key.c:111
Code: 00 48 c7 c7 20 a0 a4 88 c6 05 36 bb 1a 03 01 e8 cd 39 8d fa e9 70 fc ff ff e8 c8 df aa fa 0f 0b e9 a8 fe ff ff e8 bc df aa fa <0f> 0b e9 ed fd ff ff 48 89 c7 e8 5d 3f ee fa e9 40 fe ff ff 4c 89
RSP: 0018:ffff88018cc5f6a0 EFLAGS: 00010293
RAX: ffff88018b1f2280 RBX: ffff8801c284f580 RCX: ffffffff86d3d3aa
RDX: 0000000000000000 RSI: ffffffff86d3d5c4 RDI: 0000000000000005
RBP: ffff88018cc5f7b0 R08: ffff88018b1f2280 R09: ffffed0038509eeb
R10: ffffed0038509eeb R11: ffff8801c284f75b R12: 1ffff1003198bed5
R13: ffff88018cc5f788 R14: 1ffff1003198bed9 R15: ffff8801cdc87480
 __sk_destruct+0x107/0xa80 net/core/sock.c:1560
 sk_destruct+0x78/0x90 net/core/sock.c:1595
 __sk_free+0xcf/0x300 net/core/sock.c:1606
 sk_free+0x42/0x50 net/core/sock.c:1617
 sock_put include/net/sock.h:1691 [inline]
 pfkey_release+0x409/0x570 net/key/af_key.c:194
 __sock_release+0xd7/0x250 net/socket.c:579
 sock_close+0x19/0x20 net/socket.c:1141
 __fput+0x385/0xa30 fs/file_table.c:278
 ____fput+0x15/0x20 fs/file_table.c:309
 task_work_run+0x1e8/0x2a0 kernel/task_work.c:113
 tracehook_notify_resume include/linux/tracehook.h:193 [inline]
 exit_to_usermode_loop+0x318/0x380 arch/x86/entry/common.c:166
 prepare_exit_to_usermode arch/x86/entry/common.c:197 [inline]
 syscall_return_slowpath arch/x86/entry/common.c:268 [inline]
 do_syscall_64+0x6be/0x820 arch/x86/entry/common.c:293
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x411051
Code: 75 14 b8 03 00 00 00 0f 05 48 3d 01 f0 ff ff 0f 83 34 19 00 00 c3 48 83 ec 08 e8 0a fc ff ff 48 89 04 24 b8 03 00 00 00 0f 05 <48> 8b 3c 24 48 89 c2 e8 53 fc ff ff 48 89 d0 48 83 c4 08 48 3d 01
RSP: 002b:00007ffcf5556300 EFLAGS: 00000293 ORIG_RAX: 0000000000000003
RAX: 0000000000000000 RBX: 0000000000000007 RCX: 0000000000411051
RDX: 0000000000000000 RSI: 0000000000730470 RDI: 0000000000000006
RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
R10: 00007ffcf5556220 R11: 0000000000000293 R12: 0000000000000000
R13: 0000000000000001 R14: 000000000000002e R15: 0000000000000005
Kernel Offset: disabled
Rebooting in 86400 seconds..