syzbot

tipc: Started in network mode
tipc: Node identity ac141441, cluster identity 4711
------------[ cut here ]------------
kernel BUG at net/ipv6/route.c:1473!
Oops: invalid opcode: 0000 [#1] SMP KASAN PTI
CPU: 1 UID: 0 PID: 7075 Comm: syz.5.382 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/02/2025
RIP: 0010:rt6_make_pcpu_route net/ipv6/route.c:1473 [inline]
RIP: 0010:ip6_pol_route+0x117d/0x1180 net/ipv6/route.c:2305
Code: ab f8 e9 f4 fa ff ff 89 d9 80 e1 07 80 c1 03 38 c1 0f 8c 03 fb ff ff 48 89 df e8 de 15 ab f8 e9 f6 fa ff ff e8 c4 5c 49 f8 90 <0f> 0b 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e
RSP: 0018:ffffc90005be6080 EFLAGS: 00010283
RAX: ffffffff8975509c RBX: ffff888126ef7000 RCX: 0000000000080000
RDX: ffffc9001b276000 RSI: 0000000000000ee9 RDI: 0000000000000eea
RBP: ffffc90005be6190 R08: ffffe8ffffd35ce7 R09: 1ffffd1ffffa6b9c
R10: dffffc0000000000 R11: fffff91ffffa6b9d R12: ffff8880487a1640
R13: ffffffff89754082 R14: dffffc0000000000 R15: 0000607ed8e3ece0
FS:  00007f7267ac66c0(0000) GS:ffff888126ef7000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b2f914ff8 CR3: 0000000061fa8000 CR4: 00000000003526f0
Call Trace:
 <TASK>
 pol_lookup_func include/net/ip6_fib.h:617 [inline]
 fib6_rule_lookup+0x348/0x6f0 net/ipv6/fib6_rules.c:125
 ip6_route_output_flags_noref net/ipv6/route.c:2684 [inline]
 ip6_route_output_flags+0x364/0x5d0 net/ipv6/route.c:2696
 ip6_route_output include/net/ip6_route.h:93 [inline]
 ip6_dst_lookup_tail+0x1ae/0x1510 net/ipv6/ip6_output.c:1141
 ip6_dst_lookup_flow+0x47/0xe0 net/ipv6/ip6_output.c:1272
 udp_tunnel6_dst_lookup+0x234/0x3c0 net/ipv6/ip6_udp_tunnel.c:165
 geneve6_xmit_skb drivers/net/geneve.c:960 [inline]
 geneve_xmit+0xd2e/0x2b70 drivers/net/geneve.c:1047
 __netdev_start_xmit include/linux/netdevice.h:5248 [inline]
 netdev_start_xmit include/linux/netdevice.h:5257 [inline]
 xmit_one net/core/dev.c:3845 [inline]
 dev_hard_start_xmit+0x2f0/0x870 net/core/dev.c:3861
 __dev_queue_xmit+0x1b50/0x3b70 net/core/dev.c:4763
 neigh_output include/net/neighbour.h:547 [inline]
 ip_finish_output2+0xd97/0x11d0 net/ipv4/ip_output.c:237
 iptunnel_xmit+0x5f8/0xa90 net/ipv4/ip_tunnel_core.c:84
 udp_tunnel_xmit_skb+0x26e/0x3c0 net/ipv4/udp_tunnel_core.c:193
 tipc_udp_xmit+0x84e/0xb60 net/tipc/udp_media.c:198
 tipc_bearer_xmit_skb+0x2b3/0x400 net/tipc/bearer.c:575
 tipc_enable_bearer net/tipc/bearer.c:366 [inline]
 __tipc_nl_bearer_enable+0x1044/0x13f0 net/tipc/bearer.c:1047
 tipc_nl_bearer_enable+0x22/0x40 net/tipc/bearer.c:1056
 genl_family_rcv_msg_doit+0x215/0x300 net/netlink/genetlink.c:1115
 genl_family_rcv_msg net/netlink/genetlink.c:1195 [inline]
 genl_rcv_msg+0x60e/0x790 net/netlink/genetlink.c:1210
 netlink_rcv_skb+0x208/0x470 net/netlink/af_netlink.c:2552
 genl_rcv+0x28/0x40 net/netlink/genetlink.c:1219
 netlink_unicast_kernel net/netlink/af_netlink.c:1320 [inline]
 netlink_unicast+0x846/0xa10 net/netlink/af_netlink.c:1346
 netlink_sendmsg+0x805/0xb30 net/netlink/af_netlink.c:1896
 sock_sendmsg_nosec net/socket.c:727 [inline]
 __sock_sendmsg+0x21c/0x270 net/socket.c:742
 ____sys_sendmsg+0x508/0x820 net/socket.c:2630
 ___sys_sendmsg+0x21f/0x2a0 net/socket.c:2684
 __sys_sendmsg net/socket.c:2716 [inline]
 __do_sys_sendmsg net/socket.c:2721 [inline]
 __se_sys_sendmsg net/socket.c:2719 [inline]
 __x64_sys_sendmsg+0x1a1/0x260 net/socket.c:2719
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xfa/0xfa0 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f726985f6c9
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 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 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f7267ac6038 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 00007f7269ab5fa0 RCX: 00007f726985f6c9
RDX: 0000000000000000 RSI: 0000200000000100 RDI: 0000000000000003
RBP: 00007f72698e1f91 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f7269ab6038 R14: 00007f7269ab5fa0 R15: 00007ffee251ccb8
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:rt6_make_pcpu_route net/ipv6/route.c:1473 [inline]
RIP: 0010:ip6_pol_route+0x117d/0x1180 net/ipv6/route.c:2305
Code: ab f8 e9 f4 fa ff ff 89 d9 80 e1 07 80 c1 03 38 c1 0f 8c 03 fb ff ff 48 89 df e8 de 15 ab f8 e9 f6 fa ff ff e8 c4 5c 49 f8 90 <0f> 0b 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e
RSP: 0018:ffffc90005be6080 EFLAGS: 00010283
RAX: ffffffff8975509c RBX: ffff888126ef7000 RCX: 0000000000080000
RDX: ffffc9001b276000 RSI: 0000000000000ee9 RDI: 0000000000000eea
RBP: ffffc90005be6190 R08: ffffe8ffffd35ce7 R09: 1ffffd1ffffa6b9c
R10: dffffc0000000000 R11: fffff91ffffa6b9d R12: ffff8880487a1640
R13: ffffffff89754082 R14: dffffc0000000000 R15: 0000607ed8e3ece0
FS:  00007f7267ac66c0(0000) GS:ffff888126ef7000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b2f914ff8 CR3: 0000000061fa8000 CR4: 00000000003526f0