------------[ cut here ]------------ WARNING: CPU: 0 PID: 15 at net/core/flow_dissector.c:1027 __skb_flow_dissect+0x95c/0x5988 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 01/26/2026 pstate: 42400005 (nZcv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) pc : __skb_flow_dissect+0x95c/0x5988 net/core/flow_dissector.c:1022 lr : __skb_flow_dissect+0x95c/0x5988 net/core/flow_dissector.c:1022 sp : ffff80001ca25de0 x29: ffff80001ca26430 x28: ffff80001ca26540 x27: 0000000000000002 x26: ffff0000cb8e4780 x25: ffff8000152251dc x24: dfff800000000000 x23: 0000000000000000 x22: 1ffff00002a44a3c x21: 1ffff00002a44a3c x20: ffff8000152251e2 x19: ffff700003944c00 x18: ffff800011b9bf60 x17: 1fffe00033ea637e x16: ffff8000082d92bc x15: 0000000000000000 x14: 000000000000000a x13: 1ffff00002a44071 x12: 0000000000ff0100 x11: ff0080000fdb19a0 x10: 0000000000000000 x9 : ffff80000fdb19a0 x8 : ffff0000c09b3780 x7 : ffff80000fdb8880 x6 : 0000000000000000 x5 : 0000000000000000 x4 : 0000000000000000 x3 : 0000000000000002 x2 : 0000000000000008 x1 : ffff80001208bb80 x0 : 0000000000000001 Call trace: __skb_flow_dissect+0x95c/0x5988 net/core/flow_dissector.c:1022 skb_flow_dissect_flow_keys include/linux/skbuff.h:1531 [inline] ___skb_get_hash+0x7c/0x5b8 net/core/flow_dissector.c:1708 __skb_get_hash+0xb8/0x228 net/core/flow_dissector.c:1773 skb_get_hash include/linux/skbuff.h:1573 [inline] nft_trace_init+0x188/0x358 net/netfilter/nf_tables_trace.c:292 nft_do_chain+0x1260/0x12e8 net/netfilter/nf_tables_core.c:243 nft_do_chain_ipv6+0x13c/0x18c net/netfilter/nft_chain_filter.c:107 nf_hook_entry_hookfn include/linux/netfilter.h:142 [inline] nf_hook_slow+0xb4/0x1f4 net/netfilter/core.c:614 nf_hook include/linux/netfilter.h:257 [inline] __ip6_local_out+0x6b0/0x7cc net/ipv6/output_core.c:149 ip6_local_out+0x3c/0x15c net/ipv6/output_core.c:159 synproxy_send_tcp_ipv6+0x3b8/0x524 net/netfilter/nf_synproxy_core.c:851 synproxy_send_client_synack_ipv6+0x5cc/0x9b8 net/netfilter/nf_synproxy_core.c:897 nft_synproxy_eval_v6+0x174/0x288 net/netfilter/nft_synproxy.c:90 nft_synproxy_do_eval+0x350/0x49c net/netfilter/nft_synproxy.c:145 nft_synproxy_eval+0x34/0x48 net/netfilter/nft_synproxy.c:247 expr_call_ops_eval net/netfilter/nf_tables_core.c:214 [inline] nft_do_chain+0x44c/0x12e8 net/netfilter/nf_tables_core.c:264 nft_do_chain_inet+0x208/0x2e4 net/netfilter/nft_chain_filter.c:161 nf_hook_entry_hookfn include/linux/netfilter.h:142 [inline] nf_hook_slow+0xb4/0x1f4 net/netfilter/core.c:614 nf_hook include/linux/netfilter.h:257 [inline] NF_HOOK+0x1d0/0x36c include/linux/netfilter.h:300 ip6_input+0x90/0xa8 net/ipv6/ip6_input.c:492 dst_input include/net/dst.h:463 [inline] ip6_rcv_finish+0x1f4/0x220 net/ipv6/ip6_input.c:79 NF_HOOK+0x2dc/0x36c include/linux/netfilter.h:302 ipv6_rcv+0x9c/0xbc net/ipv6/ip6_input.c:310 __netif_receive_skb_one_core net/core/dev.c:5619 [inline] __netif_receive_skb+0xcc/0x2a8 net/core/dev.c:5733 process_backlog+0x408/0x710 net/core/dev.c:6061 __napi_poll+0xb4/0x3f0 net/core/dev.c:6628 napi_poll net/core/dev.c:6695 [inline] net_rx_action+0x514/0xb18 net/core/dev.c:6809 handle_softirqs+0x318/0xc60 kernel/softirq.c:596 run_ksoftirqd+0x7c/0x2ac kernel/softirq.c:968 smpboot_thread_fn+0x4b0/0x964 kernel/smpboot.c:164 kthread+0x250/0x2d8 kernel/kthread.c:376 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:850 irq event stamp: 41055223 hardirqs last enabled at (41055222): [] __local_bh_enable_ip+0x1f8/0x37c kernel/softirq.c:426 hardirqs last disabled at (41055223): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:405 softirqs last enabled at (41055192): [] softirq_handle_end kernel/softirq.c:439 [inline] softirqs last enabled at (41055192): [] handle_softirqs+0xaec/0xc60 kernel/softirq.c:624 softirqs last disabled at (41055197): [] run_ksoftirqd+0x7c/0x2ac kernel/softirq.c:968 ---[ end trace 0000000000000000 ]---