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: 4626 at net/core/filter.c:3647 bpf_warn_invalid_xdp_action net/core/filter.c:3647 [inline] WARNING: CPU: 1 PID: 4626 at net/core/filter.c:3647 bpf_warn_invalid_xdp_action.cold+0x3c/0x43 net/core/filter.c:3643 Kernel panic - not syncing: panic_on_warn set ... CPU: 1 PID: 4626 Comm: systemd-udevd Not tainted 4.14.256-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:183 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:3647 [inline] RIP: 0010:bpf_warn_invalid_xdp_action.cold+0x3c/0x43 net/core/filter.c:3643 RSP: 0018:ffff8880ba506f98 EFLAGS: 00010286 RAX: 0000000000000038 RBX: 1ffff110174a0dfc RCX: 0000000000000000 RDX: 0000000000000100 RSI: ffffffff878bbcc0 RDI: ffffed10174a0de9 RBP: ffffffff88564740 R08: 0000000000000038 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: 00000000ffffffea R13: ffffc900090a3000 R14: 0000000000000000 R15: ffff888093f85c86 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 loopback_xmit+0x23a/0x580 drivers/net/loopback.c:91 __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 neigh_hh_output include/net/neighbour.h:490 [inline] neigh_output include/net/neighbour.h:498 [inline] ip_finish_output2+0x9db/0x1340 net/ipv4/ip_output.c:230 ip_finish_output+0x37c/0xc50 net/ipv4/ip_output.c:318 NF_HOOK_COND include/linux/netfilter.h:239 [inline] ip_output+0x1cd/0x510 net/ipv4/ip_output.c:406 dst_output include/net/dst.h:470 [inline] ip_local_out+0x93/0x170 net/ipv4/ip_output.c:125 iptunnel_xmit+0x5cc/0x950 net/ipv4/ip_tunnel_core.c:91 geneve_xmit_skb drivers/net/geneve.c:867 [inline] geneve_xmit+0xf15/0x2ca0 drivers/net/geneve.c:948 __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 neigh_hh_output include/net/neighbour.h:490 [inline] neigh_output include/net/neighbour.h:498 [inline] ip6_finish_output2+0xc6a/0x1f10 net/ipv6/ip6_output.c:120 ip6_finish_output+0x5c6/0xd50 net/ipv6/ip6_output.c:192 NF_HOOK_COND include/linux/netfilter.h:239 [inline] ip6_output+0x1c5/0x660 net/ipv6/ip6_output.c:209 dst_output include/net/dst.h:470 [inline] NF_HOOK include/linux/netfilter.h:250 [inline] mld_sendpack+0x5fe/0xea0 net/ipv6/mcast.c:1657 mld_send_cr net/ipv6/mcast.c:1953 [inline] mld_ifc_timer_expire+0x57c/0xcd0 net/ipv6/mcast.c:2452 call_timer_fn+0x14a/0x650 kernel/time/timer.c:1280 expire_timers+0x232/0x4d0 kernel/time/timer.c:1319 __run_timers kernel/time/timer.c:1637 [inline] run_timer_softirq+0x1d5/0x5a0 kernel/time/timer.c:1650 __do_softirq+0x24d/0x9ff kernel/softirq.c:288 invoke_softirq kernel/softirq.c:368 [inline] irq_exit+0x193/0x240 kernel/softirq.c:409 exiting_irq arch/x86/include/asm/apic.h:638 [inline] smp_apic_timer_interrupt+0x141/0x5e0 arch/x86/kernel/apic/apic.c:1106 apic_timer_interrupt+0x93/0xa0 arch/x86/entry/entry_64.S:793 RIP: 0010:arch_local_irq_restore arch/x86/include/asm/paravirt.h:779 [inline] RIP: 0010:lock_acquire+0x1ec/0x3f0 kernel/locking/lockdep.c:4001 RSP: 0018:ffff88809b3d7b48 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff10 RAX: 1ffffffff11e1279 RBX: ffff88809b3ce1c0 RCX: 000000000000726a RDX: dffffc0000000000 RSI: 0000000000000001 RDI: 0000000000000286 RBP: ffffffff8904b0e0 R08: ffffffff8b9d6e10 R09: 0000000000040057 R10: ffff88809b3cea48 R11: ffff88809b3ce1c0 R12: 0000000000000000 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000001 __mutex_lock_common kernel/locking/mutex.c:756 [inline] __mutex_lock+0xc4/0x1310 kernel/locking/mutex.c:893 kernfs_iop_getattr+0x85/0xd0 fs/kernfs/inode.c:209 vfs_getattr_nosec+0xff/0x160 fs/stat.c:79 vfs_getattr fs/stat.c:116 [inline] vfs_statx+0x104/0x180 fs/stat.c:189 vfs_lstat include/linux/fs.h:3070 [inline] SYSC_newlstat fs/stat.c:350 [inline] SyS_newlstat+0x83/0xe0 fs/stat.c:344 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x46/0xbb RIP: 0033:0x7f13fbb20335 RSP: 002b:00007ffe3122cd58 EFLAGS: 00000246 ORIG_RAX: 0000000000000006 RAX: ffffffffffffffda RBX: 000055c6956f78a0 RCX: 00007f13fbb20335 RDX: 00007ffe3122cd90 RSI: 00007ffe3122cd90 RDI: 000055c6956f68a0 RBP: 00007ffe3122ce50 R08: 00007f13fbddf1f8 R09: 0000000000001010 R10: 0000000000000020 R11: 0000000000000246 R12: 000055c6956f68a0 R13: 000055c6956f68ac R14: 000055c695702a25 R15: 000055c695702a2c Kernel Offset: disabled Rebooting in 86400 seconds..