WARNING: CPU: 0 PID: 861 at net/key/af_key.c:111 pfkey_sock_destruct+0x574/0x610 net/key/af_key.c:111
Kernel panic - not syncing: panic_on_warn set ...

CPU: 0 PID: 861 Comm: syz-executor1 Not tainted 4.19.0-rc6+ #264
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
 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 76 ac 1a 03 01 e8 cd 29 8d fa e9 70 fc ff ff e8 c8 cf aa fa 0f 0b e9 a8 fe ff ff e8 bc cf aa fa <0f> 0b e9 ed fd ff ff 48 89 c7 e8 2d 30 ee fa e9 40 fe ff ff 4c 89
RSP: 0018:ffff8801827672d0 EFLAGS: 00010216
RAX: 0000000000040000 RBX: ffff8801c0988380 RCX: ffffc90003e7e000
RDX: 000000000000199d RSI: ffffffff86d3e5c4 RDI: 0000000000000005
RBP: ffff8801827673e0 R08: ffff8801839c61c0 R09: ffffed00381310ab
R10: ffffed00381310ab R11: ffff8801c098855b R12: 1ffff100304ece5b
R13: ffff8801827673b8 R14: 1ffff100304ece5f R15: ffff8801d7aa3040
 __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
 get_signal+0x155e/0x1980 kernel/signal.c:2343
 do_signal+0x9c/0x21e0 arch/x86/kernel/signal.c:816
 exit_to_usermode_loop+0x2e5/0x380 arch/x86/entry/common.c:162
 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: 0033:0x457579
Code: 1d b4 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 eb b3 fb ff c3 66 2e 0f 1f 84 00 00 00 00
RSP: 002b:00007f3e0979ac78 EFLAGS: 00000246 ORIG_RAX: 000000000000012b
RAX: 0000000000000002 RBX: 0000000000000005 RCX: 0000000000457579
RDX: 0000000000000003 RSI: 0000000020000200 RDI: 0000000000000003
RBP: 000000000072bf00 R08: 0000000020006c80 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007f3e0979b6d4
R13: 00000000004c3258 R14: 00000000004d4de8 R15: 00000000ffffffff
Kernel Offset: disabled
Rebooting in 86400 seconds..