------------[ cut here ]------------ WARNING: CPU: 1 PID: 18092 at drivers/net/ipvlan/ipvlan_main.c:63 ipvlan_unregister_nf_hook+0x230/0x260 drivers/net/ipvlan/ipvlan_main.c:63 Kernel panic - not syncing: panic_on_warn set ... CPU: 1 PID: 18092 Comm: syz-executor.4 Not tainted 4.14.232-syzkaller #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+0x1b2/0x281 lib/dump_stack.c:58 panic+0x1f9/0x42d kernel/panic.c:183 __warn.cold+0x20/0x44 kernel/panic.c:547 report_bug+0x208/0x250 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+0x195/0x2d0 arch/x86/kernel/traps.c:295 invalid_op+0x1b/0x40 arch/x86/entry/entry_64.S:964 RIP: 0010:ipvlan_unregister_nf_hook+0x230/0x260 drivers/net/ipvlan/ipvlan_main.c:63 RSP: 0018:ffff888094ec7418 EFLAGS: 00010216 RAX: 0000000000040000 RBX: 0000000000000000 RCX: ffffc9000b6e7000 RDX: 0000000000001f83 RSI: ffffffff83cefae0 RDI: 0000000000000286 RBP: ffff888046c7c140 R08: 0000000000000000 R09: 0000000000000001 R10: 0000000000000000 R11: ffff8880afb9e440 R12: ffff8880b3dcea80 R13: ffff888042804e40 R14: 00000000ffffffff R15: ffff888042812180 ipvlan_set_port_mode+0x491/0x5a0 drivers/net/ipvlan/ipvlan_main.c:104 ipvlan_nl_changelink+0x17f/0x230 drivers/net/ipvlan/ipvlan_main.c:508 rtnl_newlink+0x11ad/0x1860 net/core/rtnetlink.c:2642 rtnetlink_rcv_msg+0x3be/0xb10 net/core/rtnetlink.c:4316 netlink_rcv_skb+0x125/0x390 net/netlink/af_netlink.c:2433 netlink_unicast_kernel net/netlink/af_netlink.c:1287 [inline] netlink_unicast+0x437/0x610 net/netlink/af_netlink.c:1313 netlink_sendmsg+0x62e/0xb80 net/netlink/af_netlink.c:1878 sock_sendmsg_nosec net/socket.c:646 [inline] sock_sendmsg+0xb5/0x100 net/socket.c:656 ___sys_sendmsg+0x6c8/0x800 net/socket.c:2062 __sys_sendmsg+0xa3/0x120 net/socket.c:2096 SYSC_sendmsg net/socket.c:2107 [inline] SyS_sendmsg+0x27/0x40 net/socket.c:2103 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x46/0xbb RIP: 0033:0x4665f9 RSP: 002b:00007f64e15a6188 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 000000000056bf60 RCX: 00000000004665f9 RDX: 0000000000000000 RSI: 0000000020000080 RDI: 0000000000000005 RBP: 00000000004bfce1 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 000000000056bf60 R13: 00007ffe2b25650f R14: 00007f64e15a6300 R15: 0000000000022000 Kernel Offset: disabled Rebooting in 86400 seconds..