------------[ cut here ]------------ WARNING: CPU: 0 PID: 19761 at net/ipv4/route.c:1241 ip_rt_bug+0x2c/0x110 net/ipv4/route.c:1241 Modules linked in: CPU: 0 UID: 0 PID: 19761 Comm: syz.0.4502 Not tainted 6.12.0-rc7-syzkaller-00125-gcfaaa7d010d1 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/30/2024 RIP: 0010:ip_rt_bug+0x2c/0x110 net/ipv4/route.c:1241 Code: 1e fa 41 57 41 56 41 55 41 54 53 48 89 d3 e8 8b 3d 73 f7 66 90 e8 84 3d 73 f7 31 ff 48 89 de ba 02 00 00 00 e8 c5 b4 6a ff 90 <0f> 0b 90 31 c0 5b 41 5c 41 5d 41 5e 41 5f e9 5c 94 ce 01 f3 0f 1e RSP: 0018:ffffc9000ba1e780 EFLAGS: 00010286 RAX: 597f8341a07fa900 RBX: ffff888081065780 RCX: ffffffff8170cfaa RDX: dffffc0000000000 RSI: ffffffff8c0acac0 RDI: ffffffff8c610ce0 RBP: 0000000000000001 R08: ffffffff942d089f R09: ffffffff8a21ac9b R10: dffffc0000000000 R11: fffffbfff285a114 R12: dffffc0000000000 R13: ffffc9000ba1e9f8 R14: ffff88805eb03b00 R15: ffff8881456a9b00 FS: 00007f7416aa86c0(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00000000200000c0 CR3: 0000000099a4e000 CR4: 0000000000350ef0 Call Trace: ip_local_out net/ipv4/ip_output.c:130 [inline] ip_send_skb net/ipv4/ip_output.c:1496 [inline] ip_push_pending_frames+0xbf/0x150 net/ipv4/ip_output.c:1516 __icmp_send+0x1017/0x15c0 net/ipv4/icmp.c:780 ipv4_send_dest_unreach net/ipv4/route.c:1221 [inline] ipv4_link_failure+0x62f/0xa10 net/ipv4/route.c:1228 dst_link_failure include/net/dst.h:429 [inline] xfrmi_xmit2 net/xfrm/xfrm_interface_core.c:520 [inline] xfrmi_xmit+0xd6d/0x1b10 net/xfrm/xfrm_interface_core.c:573 __netdev_start_xmit include/linux/netdevice.h:4928 [inline] netdev_start_xmit include/linux/netdevice.h:4937 [inline] xmit_one net/core/dev.c:3588 [inline] dev_hard_start_xmit+0x27c/0x7e0 net/core/dev.c:3604 __dev_queue_xmit+0x1b11/0x3ed0 net/core/dev.c:4432 neigh_output include/net/neighbour.h:542 [inline] ip_finish_output2+0xe72/0x1390 net/ipv4/ip_output.c:236 ip_local_out net/ipv4/ip_output.c:130 [inline] __ip_queue_xmit+0x118c/0x1b80 net/ipv4/ip_output.c:536 sctp_packet_transmit+0x26b1/0x2ca0 net/sctp/output.c:653 sctp_packet_singleton+0x22c/0x320 net/sctp/outqueue.c:783 sctp_outq_flush_ctrl net/sctp/outqueue.c:914 [inline] sctp_outq_flush+0x6d5/0x3e20 net/sctp/outqueue.c:1212 sctp_side_effects net/sctp/sm_sideeffect.c:1198 [inline] sctp_do_sm+0x59cc/0x60c0 net/sctp/sm_sideeffect.c:1169 sctp_primitive_ASSOCIATE+0x95/0xc0 net/sctp/primitive.c:73 __sctp_connect+0x9cd/0xe30 net/sctp/socket.c:1234 __sctp_setsockopt_connectx net/sctp/socket.c:1336 [inline] sctp_getsockopt_connectx3+0x46c/0x730 net/sctp/socket.c:1421 sctp_getsockopt+0x8de/0xbb0 net/sctp/socket.c:8133 do_sock_getsockopt+0x3c6/0x7e0 net/socket.c:2396 __sys_getsockopt+0x267/0x330 net/socket.c:2425 __do_sys_getsockopt net/socket.c:2435 [inline] __se_sys_getsockopt net/socket.c:2432 [inline] __x64_sys_getsockopt+0xb5/0xd0 net/socket.c:2432 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f7415d7e719 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:00007f7416aa8038 EFLAGS: 00000246 ORIG_RAX: 0000000000000037 RAX: ffffffffffffffda RBX: 00007f7415f35f80 RCX: 00007f7415d7e719 RDX: 000000000000006f RSI: 0000000000000084 RDI: 0000000000000003 RBP: 00007f7415df175e R08: 0000000020000100 R09: 0000000000000000 R10: 00000000200000c0 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007f7415f35f80 R15: 00007ffda06b28b8