------------[ cut here ]------------
WARNING: CPU: 0 PID: 13057 at net/xfrm/xfrm_policy.c:752 xfrm_policy_insert+0x679/0x11e0 net/xfrm/xfrm_policy.c:752
Kernel panic - not syncing: panic_on_warn set ...

kobject: 'kvm' (ffff888219812590): kobject_uevent_env
CPU: 0 PID: 13057 Comm: syz-executor.0 Not tainted 4.14.146 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
 __dump_stack lib/dump_stack.c:17 [inline]
 dump_stack+0x138/0x197 lib/dump_stack.c:53
 panic+0x1f2/0x426 kernel/panic.c:182
kobject: 'kvm' (ffff888219812590): fill_kobj_path: path = '/devices/virtual/misc/kvm'
 __warn.cold+0x2f/0x36 kernel/panic.c:546
 report_bug+0x216/0x254 lib/bug.c:186
 fixup_bug arch/x86/kernel/traps.c:177 [inline]
 fixup_bug arch/x86/kernel/traps.c:172 [inline]
 do_error_trap+0x1bb/0x310 arch/x86/kernel/traps.c:295
 do_invalid_op+0x1b/0x20 arch/x86/kernel/traps.c:314
 invalid_op+0x1b/0x40 arch/x86/entry/entry_64.S:963
RIP: 0010:xfrm_policy_insert+0x679/0x11e0 net/xfrm/xfrm_policy.c:752
RSP: 0018:ffff8880592f7560 EFLAGS: 00010216
kobject: 'kvm' (ffff888219812590): kobject_uevent_env
RAX: 0000000000040000 RBX: ffff8880a85bf200 RCX: ffffc9000a852000
RDX: 000000000000068e RSI: ffffffff854118b9 RDI: ffff8880a85bf430
RBP: ffff8880592f75f8 R08: 0000000000007c0f R09: ffffffff88cbd4f8
R10: ffff888093210e68 R11: ffff8880932105c0 R12: dffffc0000000000
R13: 0000000000000000 R14: 0000000000000000 R15: 000000000035075d
kobject: 'kvm' (ffff888219812590): fill_kobj_path: path = '/devices/virtual/misc/kvm'
 xfrm_add_policy+0x230/0x4f0 net/xfrm/xfrm_user.c:1623
 xfrm_user_rcv_msg+0x3c9/0x690 net/xfrm/xfrm_user.c:2613
 netlink_rcv_skb+0x14f/0x3c0 net/netlink/af_netlink.c:2432
kobject: 'kvm' (ffff888219812590): kobject_uevent_env
 xfrm_netlink_rcv+0x70/0x90 net/xfrm/xfrm_user.c:2621
 netlink_unicast_kernel net/netlink/af_netlink.c:1286 [inline]
 netlink_unicast+0x45d/0x640 net/netlink/af_netlink.c:1312
kobject: 'kvm' (ffff888219812590): fill_kobj_path: path = '/devices/virtual/misc/kvm'
 netlink_sendmsg+0x7c4/0xc60 net/netlink/af_netlink.c:1877
 sock_sendmsg_nosec net/socket.c:646 [inline]
 sock_sendmsg+0xce/0x110 net/socket.c:656
 ___sys_sendmsg+0x70a/0x840 net/socket.c:2062
 __sys_sendmsg+0xb9/0x140 net/socket.c:2096
kobject: 'loop4' (ffff8880a4a0e160): kobject_uevent_env
 SYSC_sendmsg net/socket.c:2107 [inline]
 SyS_sendmsg+0x2d/0x50 net/socket.c:2103
 do_syscall_64+0x1e8/0x640 arch/x86/entry/common.c:292
kobject: 'kvm' (ffff888219812590): kobject_uevent_env
 entry_SYSCALL_64_after_hwframe+0x42/0xb7
RIP: 0033:0x459a29
RSP: 002b:00007f2682732c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
kobject: 'loop4' (ffff8880a4a0e160): fill_kobj_path: path = '/devices/virtual/block/loop4'
RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000459a29
RDX: 0000000000000000 RSI: 00000000200001c0 RDI: 0000000000000003
RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007f26827336d4
R13: 00000000004c797e R14: 00000000004dd360 R15: 00000000ffffffff
Kernel Offset: disabled
Rebooting in 86400 seconds..