------------[ cut here ]------------
WARNING: CPU: 0 PID: 15 at net/core/flow_dissector.c:1027 __skb_flow_dissect+0xade/0x6c20 net/core/flow_dissector.c:1022
Modules linked in:
CPU: 0 PID: 15 Comm: ksoftirqd/0 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026
RIP: 0010:__skb_flow_dissect+0xade/0x6c20 net/core/flow_dissector.c:1027
Code: c6 e8 16 13 55 f9 85 db 0f 84 98 59 00 00 80 3d d1 7d de 05 01 0f 85 be 59 00 00 e8 9c 0f 55 f9 e9 e7 f9 ff ff e8 92 0f 55 f9 <0f> 0b e8 8b ce fd 01 89 c3 31 ff 89 c6 e8 e0 12 55 f9 85 db 74 18
RSP: 0018:ffffc90000145f00 EFLAGS: 00010246
RAX: ffffffff882d117e RBX: 0000000000000000 RCX: ffff88813fef3c00
RDX: 0000000000000100 RSI: ffffffff8adee180 RDI: ffffffff8adee140
RBP: ffffc900001464c8 R08: dffffc0000000000 R09: 1ffffffff215e448
R10: dffffc0000000000 R11: fffffbfff215e449 R12: ffffffff8e2080bc
R13: 1ffffffff1c41018 R14: ffffffff8e2080c2 R15: dffffc0000000000
FS:  0000000000000000(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000557190c63950 CR3: 000000002ecd7000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 skb_flow_dissect_flow_keys include/linux/skbuff.h:1531 [inline]
 ___skb_get_hash+0x55/0x6e0 net/core/flow_dissector.c:1705
 __skb_get_hash+0xd2/0x270 net/core/flow_dissector.c:1770
 skb_get_hash include/linux/skbuff.h:1573 [inline]
 nft_trace_init+0x1e0/0x430 net/netfilter/nf_tables_trace.c:292
 nft_do_chain+0x1612/0x16d0 net/netfilter/nf_tables_core.c:243
 nft_do_chain_ipv6+0x16f/0x1d0 net/netfilter/nft_chain_filter.c:107
 nf_hook_entry_hookfn include/linux/netfilter.h:142 [inline]
 nf_hook_slow+0xb9/0x200 net/netfilter/core.c:614
 nf_hook include/linux/netfilter.h:257 [inline]
 __ip6_local_out+0x780/0x8a0 net/ipv6/output_core.c:149
 ip6_local_out+0x26/0x120 net/ipv6/output_core.c:159
 synproxy_send_tcp_ipv6+0x4c7/0x670 net/netfilter/nf_synproxy_core.c:860
 synproxy_send_client_synack_ipv6+0x7b0/0xc20 net/netfilter/nf_synproxy_core.c:906
 nft_synproxy_eval_v6+0x378/0x520 net/netfilter/nft_synproxy.c:90
 nft_synproxy_do_eval+0x3ca/0x550 net/netfilter/nft_synproxy.c:145
 expr_call_ops_eval net/netfilter/nf_tables_core.c:214 [inline]
 nft_do_chain+0x4b2/0x16d0 net/netfilter/nf_tables_core.c:264
 nft_do_chain_inet+0x25c/0x340 net/netfilter/nft_chain_filter.c:161
 nf_hook_entry_hookfn include/linux/netfilter.h:142 [inline]
 nf_hook_slow+0xb9/0x200 net/netfilter/core.c:614
 nf_hook include/linux/netfilter.h:257 [inline]
 NF_HOOK+0x219/0x3b0 include/linux/netfilter.h:300
 NF_HOOK+0x329/0x3b0 include/linux/netfilter.h:302
 __netif_receive_skb_one_core net/core/dev.c:5619 [inline]
 __netif_receive_skb+0xcc/0x290 net/core/dev.c:5733
 process_backlog+0x37c/0x710 net/core/dev.c:6061
 __napi_poll+0xbb/0x460 net/core/dev.c:6628
 napi_poll net/core/dev.c:6695 [inline]
 net_rx_action+0x622/0xbc0 net/core/dev.c:6809
 handle_softirqs+0x291/0x910 kernel/softirq.c:596
 run_ksoftirqd+0xa4/0x100 kernel/softirq.c:968
 smpboot_thread_fn+0x667/0xa30 kernel/smpboot.c:164
 kthread+0x29d/0x330 kernel/kthread.c:376
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295
 </TASK>