------------[ cut here ]------------ Illegal XDP return value 16128, expect packet loss! WARNING: CPU: 0 PID: 7 at net/core/filter.c:8188 bpf_warn_invalid_xdp_action net/core/filter.c:8188 [inline] WARNING: CPU: 0 PID: 7 at net/core/filter.c:8188 bpf_warn_invalid_xdp_action+0x6f/0x80 net/core/filter.c:8184 Modules linked in: CPU: 0 PID: 7 Comm: kworker/0:1 Not tainted 5.16.0-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Workqueue: mld mld_ifc_work RIP: 0010:bpf_warn_invalid_xdp_action net/core/filter.c:8188 [inline] RIP: 0010:bpf_warn_invalid_xdp_action+0x6f/0x80 net/core/filter.c:8184 Code: 80 77 ae 8a 41 83 fc 04 48 c7 c6 c0 77 ae 8a 48 0f 46 ee e8 33 83 42 fa 44 89 e2 48 c7 c7 00 78 ae 8a 48 89 ee e8 5d 6b cb 01 <0f> 0b 5b 5d 41 5c e9 16 83 42 fa 66 0f 1f 44 00 00 41 57 41 56 49 RSP: 0018:ffffc900000079b0 EFLAGS: 00010286 RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000 RDX: ffff888010e7ba00 RSI: ffffffff815f0948 RDI: fffff52000000f28 RBP: ffffffff8aae7780 R08: 0000000000000000 R09: 0000000000000001 R10: ffffffff815ea6ee R11: 0000000000000000 R12: 0000000000003f00 R13: ffffc90000007a48 R14: 0000000000003f00 R15: ffffc900010c6000 FS: 0000000000000000(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b2f325000 CR3: 000000007d7ff000 CR4: 0000000000350ef0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600 Call Trace: veth_xdp_rcv_skb+0x68f/0x1b20 drivers/net/veth.c:804 veth_xdp_rcv+0x39b/0x9a0 drivers/net/veth.c:881 veth_poll+0x134/0x850 drivers/net/veth.c:917 __napi_poll+0xaf/0x440 net/core/dev.c:7023 napi_poll net/core/dev.c:7090 [inline] net_rx_action+0x801/0xb40 net/core/dev.c:7177 __do_softirq+0x29b/0x9c2 kernel/softirq.c:558 do_softirq.part.0+0xde/0x130 kernel/softirq.c:459 do_softirq kernel/softirq.c:451 [inline] __local_bh_enable_ip+0x102/0x120 kernel/softirq.c:383 local_bh_enable include/linux/bottom_half.h:33 [inline] rcu_read_unlock_bh include/linux/rcupdate.h:758 [inline] ip6_finish_output2+0x5bf/0x14e0 net/ipv6/ip6_output.c:127 __ip6_finish_output net/ipv6/ip6_output.c:191 [inline] __ip6_finish_output+0x4c1/0x1050 net/ipv6/ip6_output.c:170 ip6_finish_output+0x32/0x200 net/ipv6/ip6_output.c:201 NF_HOOK_COND include/linux/netfilter.h:296 [inline] ip6_output+0x1e4/0x530 net/ipv6/ip6_output.c:224 dst_output include/net/dst.h:450 [inline] NF_HOOK include/linux/netfilter.h:307 [inline] NF_HOOK include/linux/netfilter.h:301 [inline] mld_sendpack+0x9a1/0xe40 net/ipv6/mcast.c:1826 mld_send_cr net/ipv6/mcast.c:2127 [inline] mld_ifc_work+0x71c/0xdc0 net/ipv6/mcast.c:2659 process_one_work+0x9b2/0x1660 kernel/workqueue.c:2298 worker_thread+0x65d/0x1130 kernel/workqueue.c:2445 kthread+0x405/0x4f0 kernel/kthread.c:327 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295