IPv6: ADDRCONF(NETDEV_CHANGE): vcan0: link becomes ready
IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready
IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready
Illegal XDP return value 4294967274, expect packet loss!
------------[ cut here ]------------
WARNING: CPU: 1 PID: 2677 at net/core/filter.c:3646 bpf_warn_invalid_xdp_action net/core/filter.c:3646 [inline]
WARNING: CPU: 1 PID: 2677 at net/core/filter.c:3646 bpf_warn_invalid_xdp_action.cold+0x3c/0x43 net/core/filter.c:3642
Kernel panic - not syncing: panic_on_warn set ...

CPU: 1 PID: 2677 Comm: syz-executor.3 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:bpf_warn_invalid_xdp_action net/core/filter.c:3646 [inline]
RIP: 0010:bpf_warn_invalid_xdp_action.cold+0x3c/0x43 net/core/filter.c:3642
RSP: 0018:ffff88822d3ef460 EFLAGS: 00010282
RAX: 0000000000000038 RBX: 1ffff11045a7de95 RCX: 0000000000000000
RDX: 000000000000a909 RSI: ffffffff81441a30 RDI: ffffed1045a7de82
RBP: ffffffff88562c80 R08: 0000000000000038 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: 00000000ffffffea
R13: ffffc90012b49000 R14: 0000000000000000 R15: ffff8880a524b386
 netif_receive_generic_xdp+0x554/0x950 net/core/dev.c:3956
 do_xdp_generic.part.0+0x22/0xc0 net/core/dev.c:4001
 do_xdp_generic net/core/dev.c:4039 [inline]
 netif_rx_internal+0x219/0x800 net/core/dev.c:4039
 dev_forward_skb+0x39/0x50 net/core/dev.c:1866
 veth_xmit+0xf1/0x300 drivers/net/veth.c:114
 __netdev_start_xmit include/linux/netdevice.h:4051 [inline]
 netdev_start_xmit include/linux/netdevice.h:4060 [inline]
 xmit_one net/core/dev.c:3005 [inline]
 dev_hard_start_xmit+0x188/0x890 net/core/dev.c:3021
 __dev_queue_xmit+0x1d7f/0x2480 net/core/dev.c:3521
 __bpf_tx_skb net/core/filter.c:1708 [inline]
 __bpf_redirect_common net/core/filter.c:1747 [inline]
 __bpf_redirect+0x5cf/0x9c0 net/core/filter.c:1754
 ____bpf_clone_redirect net/core/filter.c:1787 [inline]
 bpf_clone_redirect+0x1e1/0x2c0 net/core/filter.c:1759
 ___bpf_prog_run+0x252b/0x5a70 kernel/bpf/core.c:1086
Kernel Offset: disabled
Rebooting in 86400 seconds..