------------[ cut here ]------------
Illegal XDP return value 4294967283, expect packet loss!
WARNING: CPU: 0 PID: 3729 at net/core/filter.c:8109 bpf_warn_invalid_xdp_action net/core/filter.c:8109 [inline]
WARNING: CPU: 0 PID: 3729 at net/core/filter.c:8109 bpf_warn_invalid_xdp_action+0x6f/0x80 net/core/filter.c:8105
Modules linked in:
CPU: 0 PID: 3729 Comm: kworker/0:3 Not tainted 5.12.0-rc4-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:8109 [inline]
RIP: 0010:bpf_warn_invalid_xdp_action+0x6f/0x80 net/core/filter.c:8105
Code: a0 d2 66 8a 41 83 fc 04 48 c7 c6 e0 d2 66 8a 48 0f 46 ee e8 43 bf 6c fa 44 89 e2 48 c7 c7 20 d3 66 8a 48 89 ee e8 7e 96 ba 01 <0f> 0b 5b 5d 41 5c e9 26 bf 6c fa 66 0f 1f 44 00 00 41 57 41 56 49
RSP: 0018:ffffc90000007928 EFLAGS: 00010282
RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000
RDX: ffff88801caed4c0 RSI: ffffffff815c4d15 RDI: fffff52000000f17
RBP: ffffffff8a66d2a0 R08: 0000000000000000 R09: 0000000000000000
R10: ffffffff815bdaae R11: 0000000000000000 R12: 00000000fffffff3
R13: 000000000000dd86 R14: ffffc90000007b18 R15: ffff888023181dc0
FS:  0000000000000000(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ffd7884e0f8 CR3: 0000000021986000 CR4: 00000000001506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <IRQ>
 netif_receive_generic_xdp+0xe8f/0x1780 net/core/dev.c:4768
 do_xdp_generic net/core/dev.c:4816 [inline]
 do_xdp_generic net/core/dev.c:4809 [inline]
 __netif_receive_skb_core+0x505/0x37f0 net/core/dev.c:5207
 __netif_receive_skb_list_core+0x338/0x8e0 net/core/dev.c:5460
 __netif_receive_skb_list net/core/dev.c:5527 [inline]
 netif_receive_skb_list_internal+0x777/0xd70 net/core/dev.c:5637
 netif_receive_skb_list+0x54/0x5b0 net/core/dev.c:5689
 ieee80211_rx_napi+0x344/0x3d0 net/mac80211/rx.c:4846
 ieee80211_rx include/net/mac80211.h:4524 [inline]
 ieee80211_tasklet_handler+0xd4/0x130 net/mac80211/main.c:235
 tasklet_action_common.constprop.0+0x1d7/0x2d0 kernel/softirq.c:557
 __do_softirq+0x29b/0x9f6 kernel/softirq.c:345
 do_softirq.part.0+0xd9/0x130 kernel/softirq.c:248
 </IRQ>
 do_softirq kernel/softirq.c:240 [inline]
 __local_bh_enable_ip+0x102/0x120 kernel/softirq.c:198
 local_bh_enable include/linux/bottom_half.h:32 [inline]
 rcu_read_unlock_bh include/linux/rcupdate.h:745 [inline]
 ip6_finish_output2+0x755/0x1700 net/ipv6/ip6_output.c:118
 __ip6_finish_output net/ipv6/ip6_output.c:182 [inline]
 __ip6_finish_output+0x4c1/0xe10 net/ipv6/ip6_output.c:161
 ip6_finish_output+0x35/0x200 net/ipv6/ip6_output.c:192
 NF_HOOK_COND include/linux/netfilter.h:290 [inline]
 ip6_output+0x1e4/0x530 net/ipv6/ip6_output.c:215
 dst_output include/net/dst.h:448 [inline]
 NF_HOOK include/linux/netfilter.h:301 [inline]
 ndisc_send_skb+0xa99/0x1750 net/ipv6/ndisc.c:508
 ndisc_send_ns+0x3a9/0x840 net/ipv6/ndisc.c:650
 addrconf_dad_work+0xc3f/0x12b0 net/ipv6/addrconf.c:4119
 process_one_work+0x98d/0x1600 kernel/workqueue.c:2275
 worker_thread+0x64c/0x1120 kernel/workqueue.c:2421
 kthread+0x3b1/0x4a0 kernel/kthread.c:292
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:294