syzbot

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WARNING: CPU: 1 PID: 3092 at ./include/linux/skbuff.h:1165 skb_dst_check_unset include/linux/skbuff.h:1164 [inline]
WARNING: CPU: 1 PID: 3092 at ./include/linux/skbuff.h:1165 skb_dst_set include/linux/skbuff.h:1211 [inline]
WARNING: CPU: 1 PID: 3092 at ./include/linux/skbuff.h:1165 nf_reject6_fill_skb_dst net/ipv6/netfilter/nf_reject_ipv6.c:264 [inline]
WARNING: CPU: 1 PID: 3092 at ./include/linux/skbuff.h:1165 nf_send_unreach6+0x828/0xa20 net/ipv6/netfilter/nf_reject_ipv6.c:401
Modules linked in:
CPU: 1 UID: 0 PID: 3092 Comm: kworker/1:2 Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
Workqueue: wg-crypt-wg0 wg_packet_tx_worker
RIP: 0010:skb_dst_check_unset include/linux/skbuff.h:1164 [inline]
RIP: 0010:skb_dst_set include/linux/skbuff.h:1211 [inline]
RIP: 0010:nf_reject6_fill_skb_dst net/ipv6/netfilter/nf_reject_ipv6.c:264 [inline]
RIP: 0010:nf_send_unreach6+0x828/0xa20 net/ipv6/netfilter/nf_reject_ipv6.c:401
Code: 85 f6 74 0a e8 f9 6b 7a f7 e9 c8 fc ff ff e8 ef 6b 7a f7 4c 8b 7c 24 18 e9 34 fa ff ff e8 e0 6b 7a f7 eb 9b e8 d9 6b 7a f7 90 <0f> 0b 90 e9 c7 fb ff ff 48 85 db 0f 84 81 00 00 00 4c 8d a4 24 20
RSP: 0018:ffffc90000a083c0 EFLAGS: 00010246
RAX: ffffffff8a454057 RBX: ffff8880583768c0 RCX: ffff88802f189e00
RDX: 0000000000000100 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc90000a08568 R08: ffff888076b56903 R09: 1ffff1100ed6ad20
R10: dffffc0000000000 R11: ffffed100ed6ad21 R12: ffff888032112101
R13: dffffc0000000001 R14: 1ffff1100b06ed23 R15: 0000000000000000
FS:  0000000000000000(0000) GS:ffff888125d1b000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fa282a83fe8 CR3: 00000000755a2000 CR4: 00000000003526f0
Call Trace:
 <IRQ>
 nft_reject_inet_eval+0x441/0x690 net/netfilter/nft_reject_inet.c:44
 expr_call_ops_eval net/netfilter/nf_tables_core.c:237 [inline]
 nft_do_chain+0x40c/0x1920 net/netfilter/nf_tables_core.c:285
 nft_do_chain_inet+0x25d/0x340 net/netfilter/nft_chain_filter.c:161
 nf_hook_entry_hookfn include/linux/netfilter.h:158 [inline]
 nf_hook_slow+0xc5/0x220 net/netfilter/core.c:623
 nf_hook include/linux/netfilter.h:273 [inline]
 NF_HOOK+0x206/0x3a0 include/linux/netfilter.h:316
 __netif_receive_skb_one_core net/core/dev.c:5979 [inline]
 __netif_receive_skb+0xd3/0x380 net/core/dev.c:6092
 process_backlog+0x60e/0x14f0 net/core/dev.c:6444
 __napi_poll+0xc7/0x360 net/core/dev.c:7494
 napi_poll net/core/dev.c:7557 [inline]
 net_rx_action+0x707/0xe30 net/core/dev.c:7684
 handle_softirqs+0x283/0x870 kernel/softirq.c:579
 do_softirq+0xec/0x180 kernel/softirq.c:480
 </IRQ>
 <TASK>
 __local_bh_enable_ip+0x17d/0x1c0 kernel/softirq.c:407
 wg_socket_send_skb_to_peer+0x16b/0x1d0 drivers/net/wireguard/socket.c:184
 wg_packet_create_data_done drivers/net/wireguard/send.c:251 [inline]
 wg_packet_tx_worker+0x1c8/0x7c0 drivers/net/wireguard/send.c:276
 process_one_work kernel/workqueue.c:3236 [inline]
 process_scheduled_works+0xae1/0x17b0 kernel/workqueue.c:3319
 worker_thread+0x8a0/0xda0 kernel/workqueue.c:3400
 kthread+0x711/0x8a0 kernel/kthread.c:463
 ret_from_fork+0x3f9/0x770 arch/x86/kernel/process.c:148
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
 </TASK>