------------[ cut here ]------------ WARNING: CPU: 0 PID: 9448 at net/core/flow_dissector.c:1027 __skb_flow_dissect+0x95c/0x5988 net/core/flow_dissector.c:1022 Modules linked in: CPU: 0 PID: 9448 Comm: syz.3.1458 Not tainted syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 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 : ffff8000080066e0 x29: ffff800008006d30 x28: ffff800008006e40 x27: 0000000000000002 x26: ffff00010d133500 x25: ffff8000152051dc x24: dfff800000000000 x23: 0000000000000000 x22: 1ffff00002a40a3c x21: 1ffff00002a40a3c x20: ffff8000152051e2 x19: ffff700001000d20 x18: ffff800011b7bf60 x17: 00000000ffff0000 x16: ffff8000082d9364 x15: 0000000000000000 x14: 000000000000000a x13: 1ffff00002a40071 x12: 0000000000ff0100 x11: ff0080000fda1f0c x10: 0000000000000000 x9 : ffff80000fda1f0c x8 : ffff0000c7699bc0 x7 : ffff80000fda8dec x6 : 0000000000000000 x5 : 0000000000000000 x4 : 0000000000000000 x3 : 0000000000000002 x2 : 0000000000000008 x1 : ffff80001206b4c0 x0 : 0000000000000001 Call trace: __skb_flow_dissect+0x95c/0x5988 net/core/flow_dissector.c:1022 skb_flow_dissect_flow_keys include/linux/skbuff.h:1499 [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:1541 [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_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+0x1d0/0x338 include/linux/netfilter.h:257 __ip_local_out+0x4b8/0x608 net/ipv4/ip_output.c:115 ip_local_out+0x3c/0x15c net/ipv4/ip_output.c:124 iptunnel_xmit+0x3cc/0x850 net/ipv4/ip_tunnel_core.c:82 udp_tunnel_xmit_skb+0x1b0/0x2c4 net/ipv4/udp_tunnel_core.c:172 tipc_udp_xmit+0x788/0x9b8 net/tipc/udp_media.c:198 tipc_udp_send_msg+0x21c/0x380 net/tipc/udp_media.c:271 tipc_bearer_xmit_skb+0x240/0x380 net/tipc/bearer.c:577 tipc_disc_timeout+0x4d8/0x628 net/tipc/discover.c:338 call_timer_fn+0x1b8/0x95c kernel/time/timer.c:1701 expire_timers kernel/time/timer.c:1752 [inline] __run_timers+0x478/0x6f0 kernel/time/timer.c:2023 run_timer_softirq+0x7c/0x114 kernel/time/timer.c:2036 handle_softirqs+0x318/0xc60 kernel/softirq.c:596 __do_softirq+0x14/0x20 kernel/softirq.c:630 ____do_softirq+0x14/0x20 arch/arm64/kernel/irq.c:80 call_on_irq_stack+0x30/0x48 arch/arm64/kernel/entry.S:897 do_softirq_own_stack+0x20/0x2c arch/arm64/kernel/irq.c:85 invoke_softirq kernel/softirq.c:477 [inline] __irq_exit_rcu+0x23c/0x438 kernel/softirq.c:679 irq_exit_rcu+0x14/0x84 kernel/softirq.c:691 __el1_irq arch/arm64/kernel/entry-common.c:472 [inline] el1_interrupt+0x38/0x54 arch/arm64/kernel/entry-common.c:486 el1h_64_irq_handler+0x18/0x24 arch/arm64/kernel/entry-common.c:491 el1h_64_irq+0x64/0x68 arch/arm64/kernel/entry.S:581 arch_local_irq_enable arch/arm64/include/asm/irqflags.h:35 [inline] raw_spin_rq_unlock_irq kernel/sched/sched.h:1374 [inline] finish_lock_switch+0xb8/0x1c4 kernel/sched/core.c:5004 finish_task_switch+0x120/0x60c kernel/sched/core.c:5122 context_switch kernel/sched/core.c:5248 [inline] __schedule+0xdd4/0x1b0c kernel/sched/core.c:6562 schedule+0xc4/0x170 kernel/sched/core.c:6638 schedule_timeout+0xc8/0x2f4 kernel/time/timer.c:2144 unix_wait_for_peer+0x184/0x258 net/unix/af_unix.c:1449 unix_dgram_sendmsg+0xbd0/0x1268 net/unix/af_unix.c:2049 sock_sendmsg_nosec net/socket.c:718 [inline] __sock_sendmsg net/socket.c:730 [inline] ____sys_sendmsg+0x5c8/0x938 net/socket.c:2518 ___sys_sendmsg net/socket.c:2572 [inline] __sys_sendmmsg+0x344/0x834 net/socket.c:2658 __do_sys_sendmmsg net/socket.c:2687 [inline] __se_sys_sendmmsg net/socket.c:2684 [inline] __arm64_sys_sendmmsg+0xa0/0xbc net/socket.c:2684 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall+0x98/0x2b4 arch/arm64/kernel/syscall.c:52 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:140 do_el0_svc+0x58/0x130 arch/arm64/kernel/syscall.c:204 el0_svc+0x58/0x128 arch/arm64/kernel/entry-common.c:637 el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:655 el0t_64_sync+0x18c/0x190 arch/arm64/kernel/entry.S:585 irq event stamp: 77651 hardirqs last enabled at (77650): [] __local_bh_enable_ip+0x1f8/0x37c kernel/softirq.c:426 hardirqs last disabled at (77651): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:405 softirqs last enabled at (70284): [] softirq_handle_end kernel/softirq.c:439 [inline] softirqs last enabled at (70284): [] handle_softirqs+0xaec/0xc60 kernel/softirq.c:624 softirqs last disabled at (77621): [] __do_softirq+0x14/0x20 kernel/softirq.c:630 ---[ end trace 0000000000000000 ]---