------------[ cut here ]------------ Illegal XDP return value 4294967274, expect packet loss! WARNING: CPU: 0 PID: 6568 at net/core/filter.c:8177 bpf_warn_invalid_xdp_action net/core/filter.c:8177 [inline] WARNING: CPU: 0 PID: 6568 at net/core/filter.c:8177 bpf_warn_invalid_xdp_action+0x6f/0x80 net/core/filter.c:8173 Modules linked in: CPU: 0 PID: 6568 Comm: syz-executor840 Not tainted 5.15.0-rc2-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:8177 [inline] RIP: 0010:bpf_warn_invalid_xdp_action+0x6f/0x80 net/core/filter.c:8173 Code: 20 a4 8c 8a 41 83 fc 04 48 c7 c6 60 a4 8c 8a 48 0f 46 ee e8 b3 b8 4d fa 44 89 e2 48 c7 c7 a0 a4 8c 8a 48 89 ee e8 4d 1c ca 01 <0f> 0b 5b 5d 41 5c e9 96 b8 4d fa 66 0f 1f 44 00 00 41 57 41 56 49 RSP: 0018:ffffc90000007a78 EFLAGS: 00010282 RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000 RDX: ffff88801bbc8000 RSI: ffffffff815dbe08 RDI: fffff52000000f41 RBP: ffffffff8a8ca420 R08: 0000000000000000 R09: 0000000000000000 R10: ffffffff815d5bae R11: 0000000000000000 R12: 00000000ffffffea R13: 00000000ffffffea R14: 00000000ffffffea R15: 00000000ffffff90 FS: 0000555555c29300(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fb31255d130 CR3: 000000001b115000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: netif_receive_generic_xdp net/core/dev.c:4803 [inline] do_xdp_generic.part.0+0x80b/0xa00 net/core/dev.c:4851 do_xdp_generic net/core/dev.c:4846 [inline] __netif_receive_skb_core+0x11b0/0x3640 net/core/dev.c:5259 __netif_receive_skb_one_core+0xae/0x180 net/core/dev.c:5434 __netif_receive_skb+0x24/0x1b0 net/core/dev.c:5550 process_backlog+0x2a5/0x6c0 net/core/dev.c:6427 __napi_poll+0xaf/0x440 net/core/dev.c:6986 napi_poll net/core/dev.c:7053 [inline] net_rx_action+0x801/0xb40 net/core/dev.c:7140 __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:32 [inline] netlink_create+0x402/0x5e0 net/netlink/af_netlink.c:709 __sock_create+0x353/0x790 net/socket.c:1464 sock_create net/socket.c:1515 [inline] __sys_socket+0xef/0x200 net/socket.c:1557 __do_sys_socket net/socket.c:1566 [inline] __se_sys_socket net/socket.c:1564 [inline] __x64_sys_socket+0x6f/0xb0 net/socket.c:1564 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x44/0xae RIP: 0033:0x7fb3124eb209 Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 b1 14 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007ffdf172a6f8 EFLAGS: 00000246 ORIG_RAX: 0000000000000029 RAX: ffffffffffffffda RBX: 00000000000118bc RCX: 00007fb3124eb209 RDX: 0000000000000000 RSI: 0000000000000003 RDI: 0000000000000010 RBP: 0000000000000000 R08: 00007ffdf172a898 R09: 00007ffdf172a898 R10: 00007ffdf172a898 R11: 0000000000000246 R12: 00007ffdf172a70c R13: 431bde82d7b634db R14: 0000000000000000 R15: 0000000000000000