------------[ cut here ]------------
WARNING: CPU: 1 PID: 16061 at net/ipv4/route.c:1254 ip_rt_bug+0x2c/0x110 net/ipv4/route.c:1254
Modules linked in:
CPU: 1 UID: 0 PID: 16061 Comm: syz-executor405 Not tainted 6.13.0-rc5-syzkaller-gccb98ccef0e5 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
RIP: 0010:ip_rt_bug+0x2c/0x110 net/ipv4/route.c:1254
Code: 1e fa 41 57 41 56 41 55 41 54 53 48 89 d3 e8 5b 07 7d f7 66 90 e8 54 07 7d f7 31 ff 48 89 de ba 02 00 00 00 e8 25 3e 6a ff 90 <0f> 0b 90 31 c0 5b 41 5c 41 5d 41 5e 41 5f e9 5c d4 cd 01 f3 0f 1e
RSP: 0018:ffffc90002f17000 EFLAGS: 00010282
RAX: c89606240e884600 RBX: ffff888034306b40 RCX: ffffffff817b274a
RDX: dffffc0000000000 RSI: ffffffff8c0a98e0 RDI: ffffffff8c5fb0e0
RBP: 0000000000000001 R08: ffffffff942a4927 R09: 1ffffffff2854924
R10: dffffc0000000000 R11: fffffbfff2854925 R12: dffffc0000000000
R13: ffffc90002f17278 R14: ffffffff9a783bc0 R15: ffff88801add21c0
FS:  0000555577030380(0000) GS:ffff8880b8700000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000020001000 CR3: 0000000078fde000 CR4: 0000000000350ef0
Call Trace:
 <TASK>
 ip_local_out net/ipv4/ip_output.c:130 [inline]
 ip_send_skb net/ipv4/ip_output.c:1505 [inline]
 ip_push_pending_frames+0xbf/0x150 net/ipv4/ip_output.c:1525
 __icmp_send+0x1013/0x15c0 net/ipv4/icmp.c:782
 icmp_send include/net/icmp.h:43 [inline]
 ip_options_compile+0xf0/0x180 net/ipv4/ip_options.c:473
 ip_rcv_options net/ipv4/ip_input.c:281 [inline]
 ip_rcv_finish_core+0xcc7/0x1b50 net/ipv4/ip_input.c:387
 ip_rcv_finish+0x14a/0x560 net/ipv4/ip_input.c:445
 NF_HOOK+0x3a6/0x450 include/linux/netfilter.h:314
 __netif_receive_skb_one_core net/core/dev.c:5672 [inline]
 __netif_receive_skb+0x2bf/0x650 net/core/dev.c:5785
 netif_receive_skb_internal net/core/dev.c:5871 [inline]
 netif_receive_skb+0x1e8/0x890 net/core/dev.c:5930
 tun_rx_batched+0x1b7/0x8f0 drivers/net/tun.c:1550
 tun_get_user+0x30cc/0x48a0 drivers/net/tun.c:2007
 tun_chr_write_iter+0x10d/0x1f0 drivers/net/tun.c:2053
 new_sync_write fs/read_write.c:586 [inline]
 vfs_write+0xaed/0xd30 fs/read_write.c:679
 ksys_write+0x18f/0x2b0 fs/read_write.c:731
 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: 0033:0x7f5968937769
Code: 48 83 c4 28 c3 e8 37 17 00 00 0f 1f 80 00 00 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 b8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ffdb86f3348 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007ffdb86f3518 RCX: 00007f5968937769
RDX: 000000000000100c RSI: 0000000020000240 RDI: 0000000000000005
RBP: 00007f59689aa610 R08: 0000000000002c00 R09: 00007ffdb86f3518
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
R13: 00007ffdb86f3508 R14: 0000000000000001 R15: 0000000000000001
 </TASK>