tipc: New replicast peer: 127.0.0.1 ------------[ cut here ]------------ WARNING: CPU: 0 PID: 6300 at net/core/flow_dissector.c:1027 __skb_flow_dissect+0x91c/0x5898 net/core/flow_dissector.c:1022 Modules linked in: CPU: 0 PID: 6300 Comm: syz.0.540 Not tainted syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/14/2026 pstate: 82400005 (Nzcv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) pc : __skb_flow_dissect+0x91c/0x5898 net/core/flow_dissector.c:1022 lr : __skb_flow_dissect+0x91c/0x5898 net/core/flow_dissector.c:1022 sp : ffff800020ff5e60 x29: ffff800020ff6410 x28: ffff0000d9c02098 x27: 0000000000000002 x26: ffff800020ff6190 x25: dfff800000000000 x24: 0000000000000000 x23: 1ffff00002a78a3c x22: 1ffff00002a78a3c x21: ffff8000153c51dc x20: 0000000000000000 x19: ffff7000041febfc x18: 1fffe00033e6997e x17: 00000000ffff0000 x16: ffff800011bb65f8 x15: 0000000000000000 x14: 000000000000000a x13: 1ffff00002a78071 x12: 0000000000080000 x11: 0000000000005706 x10: ffff80002227b000 x9 : ffff80000fef3378 x8 : 0000000000005707 x7 : ffff80000fefa1b0 x6 : 0000000000000000 x5 : 0000000000000000 x4 : 0000000000000000 x3 : 0000000000000002 x2 : 0000000000000008 x1 : ffff800012212780 x0 : 0000000000000001 Call trace: __skb_flow_dissect+0x91c/0x5898 net/core/flow_dissector.c:1022 skb_flow_dissect_flow_keys include/linux/skbuff.h:1531 [inline] ___skb_get_hash+0x7c/0x5e0 net/core/flow_dissector.c:1713 __skb_get_hash+0xb8/0x22c net/core/flow_dissector.c:1778 skb_get_hash include/linux/skbuff.h:1573 [inline] nft_trace_init+0x190/0x36c net/netfilter/nf_tables_trace.c:292 nft_do_chain+0x12d4/0x1364 net/netfilter/nf_tables_core.c:243 nft_do_chain_inet+0x20c/0x2ec net/netfilter/nft_chain_filter.c:161 nf_hook_entry_hookfn include/linux/netfilter.h:142 [inline] nf_hook_slow+0xc8/0x208 net/netfilter/core.c:614 nf_hook+0x1d0/0x338 include/linux/netfilter.h:257 __ip_local_out+0x4b8/0x5fc net/ipv4/ip_output.c:115 ip_local_out+0x3c/0x15c net/ipv4/ip_output.c:124 iptunnel_xmit+0x3c4/0x860 net/ipv4/ip_tunnel_core.c:82 udp_tunnel_xmit_skb+0x1c0/0x2f0 net/ipv4/udp_tunnel_core.c:172 tipc_udp_xmit+0x70c/0x930 net/tipc/udp_media.c:198 tipc_udp_send_msg+0x214/0x36c net/tipc/udp_media.c:271 tipc_bearer_xmit_skb+0x240/0x380 net/tipc/bearer.c:578 tipc_enable_bearer net/tipc/bearer.c:368 [inline] __tipc_nl_bearer_enable+0xe1c/0x1170 net/tipc/bearer.c:1050 tipc_nl_bearer_enable+0x2c/0x48 net/tipc/bearer.c:1059 genl_family_rcv_msg_doit+0x210/0x308 net/netlink/genetlink.c:756 genl_family_rcv_msg net/netlink/genetlink.c:833 [inline] genl_rcv_msg+0x424/0x600 net/netlink/genetlink.c:850 netlink_rcv_skb+0x220/0x3ec net/netlink/af_netlink.c:2516 genl_rcv+0x38/0x50 net/netlink/genetlink.c:861 netlink_unicast_kernel net/netlink/af_netlink.c:1318 [inline] netlink_unicast+0x5fc/0x80c net/netlink/af_netlink.c:1344 netlink_sendmsg+0x6f0/0x9d8 net/netlink/af_netlink.c:1877 sock_sendmsg_nosec net/socket.c:718 [inline] __sock_sendmsg net/socket.c:730 [inline] ____sys_sendmsg+0x588/0x90c net/socket.c:2519 ___sys_sendmsg net/socket.c:2573 [inline] __sys_sendmsg+0x288/0x374 net/socket.c:2602 __do_sys_sendmsg net/socket.c:2611 [inline] __se_sys_sendmsg net/socket.c:2609 [inline] __arm64_sys_sendmsg+0x80/0x94 net/socket.c:2609 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall+0x98/0x290 arch/arm64/kernel/syscall.c:52 el0_svc_common+0x13c/0x258 arch/arm64/kernel/syscall.c:140 do_el0_svc+0x5c/0x134 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: 1197 hardirqs last enabled at (1196): [] seqcount_lockdep_reader_access include/linux/seqlock.h:104 [inline] hardirqs last enabled at (1196): [] nf_conntrack_get_ht+0x108/0x208 include/net/netfilter/nf_conntrack.h:354 hardirqs last disabled at (1197): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:405 softirqs last enabled at (1158): [] local_bh_enable+0x10/0x34 include/linux/bottom_half.h:32 softirqs last disabled at (1166): [] local_bh_disable+0x10/0x34 include/linux/bottom_half.h:19 ---[ end trace 0000000000000000 ]--- tipc: Enabled bearer , priority 10