------------[ cut here ]------------
Illegal XDP return value 16128, expect packet loss!
WARNING: CPU: 1 PID: 6884 at net/core/filter.c:8177 bpf_warn_invalid_xdp_action net/core/filter.c:8177 [inline]
WARNING: CPU: 1 PID: 6884 at net/core/filter.c:8177 bpf_warn_invalid_xdp_action+0x6f/0x80 net/core/filter.c:8173
Modules linked in:
CPU: 1 PID: 6884 Comm: kworker/1:1 Not tainted 5.15.0-rc6-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Workqueue: ipv6_addrconf addrconf_dad_work
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: c0 c5 8c 8a 41 83 fc 04 48 c7 c6 00 c6 8c 8a 48 0f 46 ee e8 43 55 4d fa 44 89 e2 48 c7 c7 40 c6 8c 8a 48 89 ee e8 ad 29 ca 01 <0f> 0b 5b 5d 41 5c e9 26 55 4d fa 66 0f 1f 44 00 00 41 57 41 56 49
RSP: 0018:ffffc90000dc09b0 EFLAGS: 00010286
RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000
RDX: ffff888077bf8000 RSI: ffffffff815e8da8 RDI: fffff520001b8128
RBP: ffffffff8a8cc5c0 R08: 0000000000000000 R09: 0000000000000000
R10: ffffffff815e2b4e R11: 0000000000000000 R12: 0000000000003f00
R13: ffffc90000dc0a48 R14: 0000000000003f00 R15: ffff8880711365b6
FS:  0000000000000000(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ffce07bc960 CR3: 0000000070731000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <IRQ>
 veth_xdp_rcv_skb+0x691/0x1ba0 drivers/net/veth.c:804
 veth_xdp_rcv+0x3ac/0x810 drivers/net/veth.c:881
 veth_poll+0x134/0x850 drivers/net/veth.c:913
 __napi_poll+0xaf/0x440 net/core/dev.c:6993
 napi_poll net/core/dev.c:7060 [inline]
 net_rx_action+0x801/0xb40 net/core/dev.c:7147
 __do_softirq+0x29b/0x9c2 kernel/softirq.c:558
 do_softirq.part.0+0xde/0x130 kernel/softirq.c:459
 </IRQ>
 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]
 rcu_read_unlock_bh include/linux/rcupdate.h:757 [inline]
 ip6_finish_output2+0x765/0x1500 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_initial_cr.part.0+0x194/0x230 net/ipv6/mcast.c:2245
 mld_send_initial_cr net/ipv6/mcast.c:1232 [inline]
 ipv6_mc_dad_complete+0x1d0/0x690 net/ipv6/mcast.c:2253
 addrconf_dad_completed+0xa20/0xd60 net/ipv6/addrconf.c:4191
 addrconf_dad_work+0x79f/0x1340 net/ipv6/addrconf.c:4121
 process_one_work+0x9bf/0x16b0 kernel/workqueue.c:2297
 worker_thread+0x658/0x11f0 kernel/workqueue.c:2444
 kthread+0x3e5/0x4d0 kernel/kthread.c:319
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295