------------[ cut here ]------------
WARNING: CPU: 1 PID: 14548 at net/ipv4/route.c:1241 ip_rt_bug+0x2a/0x110 net/ipv4/route.c:1241
Modules linked in:
CPU: 1 PID: 14548 Comm: syz.4.2860 Not tainted 6.10.0-rc7-syzkaller-00256-gd0d0cd380055 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/07/2024
RIP: 0010:ip_rt_bug+0x2a/0x110 net/ipv4/route.c:1241
Code: f3 0f 1e fa 41 57 41 56 41 55 41 54 53 48 89 d3 e8 1b 43 bc f7 66 90 e8 14 43 bc f7 48 89 df be 02 00 00 00 e8 37 c2 6d ff 90 <0f> 0b 90 31 c0 5b 41 5c 41 5d 41 5e 41 5f c3 cc cc cc cc f3 0f 1e
RSP: 0018:ffffc90000a18680 EFLAGS: 00010286
RAX: 48307ecc22962000 RBX: ffff88802dc90dc0 RCX: ffffffff8172d9da
RDX: dffffc0000000000 RSI: ffffffff8bcabb40 RDI: ffffffff8c1f5540
RBP: 0000000000000001 R08: ffffffff92f76617 R09: 1ffffffff25eecc2
R10: dffffc0000000000 R11: fffffbfff25eecc3 R12: dffffc0000000000
R13: dffffc0000000000 R14: ffff8880683d8000 R15: ffff888017709380
FS:  00007f032b4f36c0(0000) GS:ffff8880b9500000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000020014030 CR3: 000000004893c000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <IRQ>
 ip_local_out net/ipv4/ip_output.c:129 [inline]
 ip_send_skb net/ipv4/ip_output.c:1492 [inline]
 ip_push_pending_frames+0xbf/0x150 net/ipv4/ip_output.c:1512
 __icmp_send+0xf89/0x14e0 net/ipv4/icmp.c:777
 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]
 arp_error_report+0x114/0x160 net/ipv4/arp.c:296
 neigh_invalidate+0x244/0x470 net/core/neighbour.c:1061
 neigh_timer_handler+0x8a5/0xfd0 net/core/neighbour.c:1148
 call_timer_fn+0x18e/0x650 kernel/time/timer.c:1792
 expire_timers kernel/time/timer.c:1843 [inline]
 __run_timers kernel/time/timer.c:2417 [inline]
 __run_timer_base+0x66a/0x8e0 kernel/time/timer.c:2428
 run_timer_base kernel/time/timer.c:2437 [inline]
 run_timer_softirq+0xb7/0x170 kernel/time/timer.c:2447
 handle_softirqs+0x2c4/0x970 kernel/softirq.c:554
 __do_softirq kernel/softirq.c:588 [inline]
 invoke_softirq kernel/softirq.c:428 [inline]
 __irq_exit_rcu+0xf4/0x1c0 kernel/softirq.c:637
 irq_exit_rcu+0x9/0x30 kernel/softirq.c:649
 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1043 [inline]
 sysvec_apic_timer_interrupt+0xa6/0xc0 arch/x86/kernel/apic/apic.c:1043
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702
RIP: 0010:copy_msghdr_from_user+0x21/0x680 net/socket.c:2511
Code: 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 55 48 89 e5 41 57 41 56 41 55 41 54 53 48 83 e4 e0 48 81 ec e0 00 00 00 48 89 4c 24 30 <49> 89 d6 48 89 f3 49 89 ff 65 48 8b 04 25 28 00 00 00 48 89 84 24
RSP: 0018:ffffc9001e527960 EFLAGS: 00000286
RAX: ffffc9001e527b40 RBX: ffffc9001e527c00 RCX: ffffc9001e527be0
RDX: ffffc9001e527c00 RSI: 0000000020014780 RDI: ffffc9001e527d00
RBP: ffffc9001e527a70 R08: ffffc9001e527bbf R09: 0000000000000000
R10: ffffc9001e527b40 R11: fffff52003ca4f78 R12: 000000000000051c
R13: 1ffff92003ca4f7c R14: 1ffff92003ca4f80 R15: dffffc0000000000
 recvmsg_copy_msghdr net/socket.c:2770 [inline]
 ___sys_recvmsg net/socket.c:2842 [inline]
 do_recvmmsg+0x40f/0xae0 net/socket.c:2940
 __sys_recvmmsg net/socket.c:3019 [inline]
 __do_sys_recvmmsg net/socket.c:3042 [inline]
 __se_sys_recvmmsg net/socket.c:3035 [inline]
 __x64_sys_recvmmsg+0x199/0x250 net/socket.c:3035
 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: 0033:0x7f032a775bd9
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:00007f032b4f3048 EFLAGS: 00000246 ORIG_RAX: 000000000000012b
RAX: ffffffffffffffda RBX: 00007f032a904038 RCX: 00007f032a775bd9
RDX: 0000000000010106 RSI: 00000000200000c0 RDI: 0000000000000003
RBP: 00007f032a7e4e60 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000002 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000006e R14: 00007f032a904038 R15: 00007ffd5a423178
 </TASK>
----------------
Code disassembly (best guess):
   0:	90                   	nop
   1:	90                   	nop
   2:	90                   	nop
   3:	90                   	nop
   4:	90                   	nop
   5:	90                   	nop
   6:	90                   	nop
   7:	90                   	nop
   8:	90                   	nop
   9:	f3 0f 1e fa          	endbr64
   d:	55                   	push   %rbp
   e:	48 89 e5             	mov    %rsp,%rbp
  11:	41 57                	push   %r15
  13:	41 56                	push   %r14
  15:	41 55                	push   %r13
  17:	41 54                	push   %r12
  19:	53                   	push   %rbx
  1a:	48 83 e4 e0          	and    $0xffffffffffffffe0,%rsp
  1e:	48 81 ec e0 00 00 00 	sub    $0xe0,%rsp
  25:	48 89 4c 24 30       	mov    %rcx,0x30(%rsp)
* 2a:	49 89 d6             	mov    %rdx,%r14 <-- trapping instruction
  2d:	48 89 f3             	mov    %rsi,%rbx
  30:	49 89 ff             	mov    %rdi,%r15
  33:	65 48 8b 04 25 28 00 	mov    %gs:0x28,%rax
  3a:	00 00
  3c:	48                   	rex.W
  3d:	89                   	.byte 0x89
  3e:	84                   	.byte 0x84
  3f:	24                   	.byte 0x24