------------[ cut here ]------------ Illegal XDP return value 16128, expect packet loss! WARNING: CPU: 1 PID: 3715 at net/core/filter.c:8187 bpf_warn_invalid_xdp_action net/core/filter.c:8187 [inline] WARNING: CPU: 1 PID: 3715 at net/core/filter.c:8187 bpf_warn_invalid_xdp_action+0x6f/0x80 net/core/filter.c:8183 Modules linked in: CPU: 1 PID: 3715 Comm: syz-executor.3 Not tainted 5.16.0-rc4-next-20211210-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:8187 [inline] RIP: 0010:bpf_warn_invalid_xdp_action+0x6f/0x80 net/core/filter.c:8183 Code: 40 29 af 8a 41 83 fc 04 48 c7 c6 80 29 af 8a 48 0f 46 ee e8 a3 ce 35 fa 44 89 e2 48 c7 c7 c0 29 af 8a 48 89 ee e8 5e 33 ce 01 <0f> 0b 5b 5d 41 5c e9 86 ce 35 fa 66 0f 1f 44 00 00 41 57 41 56 49 RSP: 0000:ffffc90003b0f8d8 EFLAGS: 00010286 RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000 RDX: ffff88801a673a80 RSI: ffffffff815f46e8 RDI: fffff52000761f0d RBP: ffffffff8aaf2940 R08: 0000000000000000 R09: 0000000000000000 R10: ffffffff815ee44e R11: 0000000000000000 R12: 0000000000003f00 R13: ffffc90003b0f970 R14: 0000000000003f00 R15: ffffc90002c65000 FS: 00005555570e5400(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f79866d1c18 CR3: 0000000019c9e000 CR4: 00000000003506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: veth_xdp_rcv_skb+0x68f/0x1d10 drivers/net/veth.c:797 veth_xdp_rcv+0x3ac/0x810 drivers/net/veth.c:874 veth_poll+0x134/0x850 drivers/net/veth.c:906 __napi_poll+0xaf/0x440 net/core/dev.c:6360 napi_poll net/core/dev.c:6427 [inline] net_rx_action+0x801/0xb40 net/core/dev.c:6514 __do_softirq+0x29b/0x9c2 kernel/softirq.c:558 invoke_softirq kernel/softirq.c:432 [inline] __irq_exit_rcu+0x123/0x180 kernel/softirq.c:637 irq_exit_rcu+0x5/0x20 kernel/softirq.c:649 sysvec_apic_timer_interrupt+0x45/0xc0 arch/x86/kernel/apic/apic.c:1097 asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:638 RIP: 0033:0x7fd3a584d678 Code: 00 00 48 8b 0d 61 ed 0a 01 4c 63 05 4a ed 0a 01 48 8b 05 4b ed 0a 01 49 01 c8 48 39 c8 72 13 4c 39 c0 73 0e 48 8d 50 04 89 38 <48> 89 15 31 ed 0a 01 c3 52 48 8d 35 b4 b7 0b 00 48 89 c2 48 8d 3d RSP: 002b:00007ffdd24dc768 EFLAGS: 00000283 RAX: 0000001b2e723ea8 RBX: 00007fd3a59c2ff8 RCX: 0000001b2e720000 RDX: 0000001b2e723eac RSI: 0000001b2e7237a0 RDI: 0000000028c27250 RBP: 0000000028c27250 R08: 0000001b2eb20000 R09: 0000000028c27254 R10: 0000000000000000 R11: 0000000000000000 R12: 00007fd3a59b7000 R13: 0000000000000001 R14: 0000000000002c85 R15: ffffffff873ebf4a