tipc: New replicast peer: 172.20.20.187 ------------[ cut here ]------------ WARNING: CPU: 1 PID: 9450 at net/core/flow_dissector.c:1107 __skb_flow_dissect+0xb05/0x6e70 net/core/flow_dissector.c:1102 Modules linked in: CPU: 1 PID: 9450 Comm: syz.7.8996 Not tainted syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026 RIP: 0010:__skb_flow_dissect+0xb05/0x6e70 net/core/flow_dissector.c:1107 Code: c6 e8 9f 38 05 f9 85 db 0f 84 9a 06 00 00 80 3d ab 48 f4 05 01 0f 85 c0 06 00 00 e8 d5 34 05 f9 e9 d5 f9 ff ff e8 cb 34 05 f9 <0f> 0b e8 54 fa 0e 02 89 c3 31 ff 89 c6 e8 69 38 05 f9 85 db 74 18 RSP: 0018:ffffc9000f04e0a0 EFLAGS: 00010283 RAX: ffffffff88825685 RBX: 0000000000000000 RCX: 0000000000080000 RDX: ffffc9000b949000 RSI: 00000000000062cd RDI: 00000000000062ce RBP: ffffc9000f04e6b8 R08: dffffc0000000000 R09: 1ffffffff223d6a0 R10: dffffc0000000000 R11: fffffbfff223d6a1 R12: ffffffff8e8ca338 R13: 1ffffffff1d19468 R14: ffffffff8e8ca342 R15: dffffc0000000000 FS: 00007f87addf66c0(0000) GS:ffff8880b8f00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000556905f28660 CR3: 000000004a080000 CR4: 00000000003506e0 DR0: ffffffffffffffff DR1: 00000000000001f8 DR2: 0000000000000002 DR3: ffffffffefffff14 DR6: 00000000ffff0ff0 DR7: 0000000000000400 Call Trace: skb_flow_dissect_flow_keys include/linux/skbuff.h:1544 [inline] ___skb_get_hash net/core/flow_dissector.c:1806 [inline] __skb_get_hash+0xf3/0x2e0 net/core/flow_dissector.c:1871 skb_get_hash include/linux/skbuff.h:1586 [inline] nft_trace_init+0x1bb/0x420 net/netfilter/nf_tables_trace.c:316 nft_do_chain+0x1523/0x1620 net/netfilter/nf_tables_core.c:268 nft_do_chain_ipv4+0x160/0x230 net/netfilter/nft_chain_filter.c:23 nf_hook_entry_hookfn include/linux/netfilter.h:144 [inline] nf_hook_slow+0xbd/0x200 net/netfilter/core.c:626 nf_hook+0x228/0x390 include/linux/netfilter.h:259 __ip_local_out+0x4db/0x5f0 net/ipv4/ip_output.c:118 ip_local_out+0x2a/0x130 net/ipv4/ip_output.c:127 iptunnel_xmit+0x4d0/0x910 net/ipv4/ip_tunnel_core.c:82 udp_tunnel_xmit_skb+0x22f/0x380 net/ipv4/udp_tunnel_core.c:172 tipc_udp_xmit+0x861/0xb40 net/tipc/udp_media.c:198 tipc_udp_send_msg+0x27e/0x3e0 net/tipc/udp_media.c:271 tipc_bearer_xmit_skb+0x2ad/0x3f0 net/tipc/bearer.c:576 tipc_enable_bearer net/tipc/bearer.c:366 [inline] __tipc_nl_bearer_enable+0x10a7/0x13e0 net/tipc/bearer.c:1048 tipc_nl_bearer_enable+0x22/0x30 net/tipc/bearer.c:1057 genl_family_rcv_msg_doit+0x21a/0x310 net/netlink/genetlink.c:971 genl_family_rcv_msg net/netlink/genetlink.c:1051 [inline] genl_rcv_msg+0x611/0x7a0 net/netlink/genetlink.c:1066 netlink_rcv_skb+0x235/0x4c0 net/netlink/af_netlink.c:2550 genl_rcv+0x28/0x40 net/netlink/genetlink.c:1075 netlink_unicast_kernel net/netlink/af_netlink.c:1320 [inline] netlink_unicast+0x7b1/0x930 net/netlink/af_netlink.c:1346 netlink_sendmsg+0x8d0/0xbf0 net/netlink/af_netlink.c:1899 sock_sendmsg_nosec net/socket.c:730 [inline] __sock_sendmsg net/socket.c:745 [inline] ____sys_sendmsg+0x61b/0x980 net/socket.c:2595 ___sys_sendmsg+0x2a6/0x360 net/socket.c:2649 __sys_sendmsg net/socket.c:2678 [inline] __do_sys_sendmsg net/socket.c:2687 [inline] __se_sys_sendmsg+0x1d0/0x2c0 net/socket.c:2685 do_syscall_x64 arch/x86/entry/common.c:46 [inline] do_syscall_64+0x55/0xb0 arch/x86/entry/common.c:76 entry_SYSCALL_64_after_hwframe+0x68/0xd2 RIP: 0033:0x7f87afb9e159 Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f87addf6028 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 00007f87afe25fa0 RCX: 00007f87afb9e159 RDX: 0000000000000000 RSI: 0000200000000080 RDI: 0000000000000009 RBP: 00007f87afc3503b R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007f87afe26038 R14: 00007f87afe25fa0 R15: 00007ffca5cd4568