IPv6: ADDRCONF(NETDEV_CHANGE): vcan0: link becomes ready
IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready
IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready
------------[ cut here ]------------
Illegal XDP return value 4294967274, expect packet loss!
WARNING: CPU: 0 PID: 9 at net/core/filter.c:5537 bpf_warn_invalid_xdp_action net/core/filter.c:5537 [inline]
WARNING: CPU: 0 PID: 9 at net/core/filter.c:5537 bpf_warn_invalid_xdp_action+0x6f/0x80 net/core/filter.c:5533
Kernel panic - not syncing: panic_on_warn set ...

CPU: 0 PID: 9 Comm: ksoftirqd/0 Not tainted 4.19.211-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/12/2023
Call Trace:
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x1fc/0x2ef lib/dump_stack.c:118
 panic+0x26a/0x50e kernel/panic.c:186
 __warn.cold+0x20/0x5a kernel/panic.c:541
 report_bug+0x262/0x2b0 lib/bug.c:183
 fixup_bug arch/x86/kernel/traps.c:178 [inline]
 fixup_bug arch/x86/kernel/traps.c:173 [inline]
 do_error_trap+0x1d7/0x310 arch/x86/kernel/traps.c:296
 invalid_op+0x14/0x20 arch/x86/entry/entry_64.S:1038
RIP: 0010:bpf_warn_invalid_xdp_action net/core/filter.c:5537 [inline]
RIP: 0010:bpf_warn_invalid_xdp_action+0x6f/0x80 net/core/filter.c:5533
Code: e0 4a 4d 89 41 83 fc 04 48 c7 c6 20 4b 4d 89 48 0f 46 ee e8 53 5c e3 fa 44 89 e2 48 c7 c7 60 4b 4d 89 48 89 ee e8 26 94 73 01 <0f> 0b 5b 5d 41 5c e9 36 5c e3 fa 66 0f 1f 44 00 00 41 54 55 89 fd
RSP: 0018:ffff8880b5a5fb38 EFLAGS: 00010286
RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000
RDX: 0000000000000100 RSI: ffffffff814dff01 RDI: ffffed1016b4bf59
RBP: ffffffff894d4ae0 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000005 R11: 0000000000000000 R12: 00000000ffffffea
R13: ffff8880b5a5fc40 R14: ffff88809f92d6c0 R15: dffffc0000000000
 veth_xdp_rcv_skb drivers/net/veth.c:550 [inline]
 veth_xdp_rcv drivers/net/veth.c:601 [inline]
 veth_poll+0x1498/0x3490 drivers/net/veth.c:621
 napi_poll net/core/dev.c:6280 [inline]
 net_rx_action+0x4ac/0xfb0 net/core/dev.c:6346
 __do_softirq+0x265/0x980 kernel/softirq.c:292
 run_ksoftirqd+0x57/0x110 kernel/softirq.c:653
 smpboot_thread_fn+0x655/0x9e0 kernel/smpboot.c:164
 kthread+0x33f/0x460 kernel/kthread.c:259
 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:415
Kernel Offset: disabled
Rebooting in 86400 seconds..