------------[ cut here ]------------
Illegal XDP return value 16128, expect packet loss!
WARNING: CPU: 1 PID: 19 at net/core/filter.c:8097 bpf_warn_invalid_xdp_action net/core/filter.c:8097 [inline]
WARNING: CPU: 1 PID: 19 at net/core/filter.c:8097 bpf_warn_invalid_xdp_action+0x6f/0x80 net/core/filter.c:8093
Modules linked in:
CPU: 1 PID: 19 Comm: ksoftirqd/1 Not tainted 5.14.0-rc7-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:8097 [inline]
RIP: 0010:bpf_warn_invalid_xdp_action+0x6f/0x80 net/core/filter.c:8093
Code: 80 58 8b 8a 41 83 fc 04 48 c7 c6 c0 58 8b 8a 48 0f 46 ee e8 a3 f3 52 fa 44 89 e2 48 c7 c7 00 59 8b 8a 48 89 ee e8 7f 8b c5 01 <0f> 0b 5b 5d 41 5c e9 86 f3 52 fa 66 0f 1f 44 00 00 41 57 41 56 49
RSP: 0018:ffffc90000d97878 EFLAGS: 00010282
RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000
RDX: ffff888011b7d4c0 RSI: ffffffff815d85b5 RDI: fffff520001b2f01
RBP: ffffffff8a8b5880 R08: 0000000000000000 R09: 0000000000000000
R10: ffffffff815d23ee R11: 0000000000000000 R12: 0000000000003f00
R13: ffffc90000d97910 R14: 0000000000003f00 R15: ffff88802a3dd836
FS:  0000000000000000(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000000056c030 CR3: 000000002d5e6000 CR4: 00000000001506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 veth_xdp_rcv_skb+0x5f8/0x1960 drivers/net/veth.c:802
 veth_xdp_rcv+0x3ac/0x810 drivers/net/veth.c:879
 veth_poll+0x134/0x850 drivers/net/veth.c:911
 __napi_poll+0xaf/0x440 net/core/dev.c:7047
 napi_poll net/core/dev.c:7114 [inline]
 net_rx_action+0x801/0xb40 net/core/dev.c:7201
 __do_softirq+0x29b/0x9c2 kernel/softirq.c:558
 run_ksoftirqd kernel/softirq.c:920 [inline]
 run_ksoftirqd+0x2d/0x60 kernel/softirq.c:912
 smpboot_thread_fn+0x645/0x9c0 kernel/smpboot.c:164
 kthread+0x3e5/0x4d0 kernel/kthread.c:319
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295