WARNING: CPU: 1 PID: 31537 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: 1 PID: 31537 Comm: syz-executor1 Not tainted 4.19.0-rc6+ #168
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 f6 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:ffff88018d53f650 EFLAGS: 00010293
RAX: ffff8801c4e78080 RBX: ffff8801c0c6d740 RCX: ffffffff86d3e3aa
RDX: 0000000000000000 RSI: ffffffff86d3e5c4 RDI: 0000000000000005
RBP: ffff88018d53f760 R08: ffff8801c4e78080 R09: ffffed003818db23
R10: ffffed003818db23 R11: ffff8801c0c6d91b R12: 1ffff10031aa7ecb
R13: ffff88018d53f738 R14: 1ffff10031aa7ecf R15: ffff8801d7a98c00
 __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_32_irqs_on arch/x86/entry/common.c:341 [inline]
 do_fast_syscall_32+0xcd5/0xfb2 arch/x86/entry/common.c:397
 entry_SYSENTER_compat+0x70/0x7f arch/x86/entry/entry_64_compat.S:139
RIP: 0023:0xf7f80ca9
Code: 85 d2 74 02 89 0a 5b 5d c3 8b 04 24 c3 8b 0c 24 c3 8b 1c 24 c3 90 90 90 90 90 90 90 90 90 90 90 90 51 52 55 89 e5 0f 34 cd 80 <5d> 5a 59 c3 90 90 90 90 eb 0d 90 90 90 90 90 90 90 90 90 90 90 90
RSP: 002b:000000000845fdac EFLAGS: 00000216 ORIG_RAX: 0000000000000006
RAX: 0000000000000000 RBX: 000000000000000a RCX: 0000000000000000
RDX: 000000000000000b RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
Kernel Offset: disabled
Rebooting in 86400 seconds..