------------[ cut here ]------------ Illegal XDP return value 4294967283, expect packet loss! WARNING: CPU: 0 PID: 13 at net/core/filter.c:8188 bpf_warn_invalid_xdp_action net/core/filter.c:8188 [inline] WARNING: CPU: 0 PID: 13 at net/core/filter.c:8188 bpf_warn_invalid_xdp_action+0x6f/0x80 net/core/filter.c:8184 Modules linked in: CPU: 0 PID: 13 Comm: ksoftirqd/0 Not tainted 5.16.0-rc8-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 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 93 80 42 fa 44 89 e2 48 c7 c7 00 78 ae 8a 48 89 ee e8 cd 6e cb 01 <0f> 0b 5b 5d 41 5c e9 76 80 42 fa 66 0f 1f 44 00 00 41 57 41 56 49 RSP: 0018:ffffc90000d27878 EFLAGS: 00010282 RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000 RDX: ffff888011950000 RSI: ffffffff815f0948 RDI: fffff520001a4f01 RBP: ffffffff8aae7780 R08: 0000000000000000 R09: 0000000000000001 R10: ffffffff815ea6ee R11: 0000000000000000 R12: 00000000fffffff3 R13: ffffc90000d27910 R14: 00000000fffffff3 R15: ffffc90001176000 FS: 0000000000000000(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b2e545000 CR3: 000000007eb23000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 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 run_ksoftirqd kernel/softirq.c:921 [inline] run_ksoftirqd+0x2d/0x60 kernel/softirq.c:913 smpboot_thread_fn+0x645/0x9c0 kernel/smpboot.c:164 kthread+0x405/0x4f0 kernel/kthread.c:327 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295