------------[ cut here ]------------
WARNING: CPU: 0 PID: 5092 at net/ipv4/route.c:1241 ip_rt_bug+0x2a/0x110 net/ipv4/route.c:1241
Modules linked in:
CPU: 0 PID: 5092 Comm: syz-executor Not tainted 6.10.0-rc6-syzkaller-00165-g0ec986ed7bab #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 8b fa b3 f7 66 90 e8 84 fa b3 f7 48 89 df be 02 00 00 00 e8 27 b4 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:ffffc90000007680 EFLAGS: 00010286
RAX: f850ecc312f97900 RBX: ffff88802ee08500 RCX: ffffffff8172da6a
RDX: dffffc0000000000 RSI: ffffffff8bcabb40 RDI: ffffffff8c1fe940
RBP: 0000000000000001 R08: ffffffff92fa761f R09: 1ffffffff25f4ec3
R10: dffffc0000000000 R11: fffffbfff25f4ec4 R12: dffffc0000000000
R13: dffffc0000000000 R14: ffff888022429cc0 R15: ffff888017738d00
FS:  0000000000000000(0000) GS:ffff8880b9400000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fdc82904030 CR3: 00000000682b6000 CR4: 00000000003506f0
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:__sanitizer_cov_trace_switch+0x90/0x120 kernel/kcov.c:340
Code: 85 d2 75 14 e9 9a 00 00 00 41 b8 05 00 00 00 4d 85 d2 0f 84 8b 00 00 00 4c 8b 4c 24 20 65 4c 8b 1c 25 c0 d4 03 00 31 d2 eb 08 <48> ff c2 49 39 d2 74 71 4c 8b 74 d6 10 65 8b 05 f4 a6 6d 7e a9 00
RSP: 0018:ffffc9000406f440 EFLAGS: 00000293
RAX: 0000000000000000 RBX: 0000000000000001 RCX: 0000000000000000
RDX: 0000000000000000 RSI: ffffffff8e1a1400 RDI: 0000000000000001
RBP: ffffffff9031619c R08: 0000000000000005 R09: ffffffff8141095f
R10: 0000000000000003 R11: ffff888025ec3c00 R12: ffffc9000406fab8
R13: dffffc0000000000 R14: 0000000000000000 R15: 1ffff9200080dea8
 unwind_next_frame+0x196f/0x2a00 arch/x86/kernel/unwind_orc.c:641
 arch_stack_walk+0x151/0x1b0 arch/x86/kernel/stacktrace.c:25
 stack_trace_save+0x118/0x1d0 kernel/stacktrace.c:122
 save_stack+0xfb/0x1f0 mm/page_owner.c:156
 __reset_page_owner+0x75/0x3f0 mm/page_owner.c:297
 reset_page_owner include/linux/page_owner.h:25 [inline]
 free_pages_prepare mm/page_alloc.c:1093 [inline]
 free_unref_page+0xd22/0xea0 mm/page_alloc.c:2588
 vfree+0x186/0x2e0 mm/vmalloc.c:3355
 kcov_put kernel/kcov.c:429 [inline]
 kcov_close+0x2b/0x50 kernel/kcov.c:525
 __fput+0x24a/0x8a0 fs/file_table.c:422
 task_work_run+0x24f/0x310 kernel/task_work.c:180
 exit_task_work include/linux/task_work.h:38 [inline]
 do_exit+0xa27/0x27e0 kernel/exit.c:876
 do_group_exit+0x207/0x2c0 kernel/exit.c:1025
 get_signal+0x16a1/0x1740 kernel/signal.c:2909
 arch_do_signal_or_restart+0x96/0x860 arch/x86/kernel/signal.c:310
 exit_to_user_mode_loop kernel/entry/common.c:111 [inline]
 exit_to_user_mode_prepare include/linux/entry-common.h:328 [inline]
 __syscall_exit_to_user_mode_work kernel/entry/common.c:207 [inline]
 syscall_exit_to_user_mode+0xc9/0x360 kernel/entry/common.c:218
 do_syscall_64+0x100/0x230 arch/x86/entry/common.c:89
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f6fcd37781a
Code: Unable to access opcode bytes at 0x7f6fcd3777f0.
RSP: 002b:00007fffb4644748 EFLAGS: 00000242 ORIG_RAX: 0000000000000037
RAX: 0000000000000000 RBX: 00007fffb4644770 RCX: 00007f6fcd37781a
RDX: 0000000000000040 RSI: 0000000000000029 RDI: 0000000000000003
RBP: 0000000000000003 R08: 00007fffb464476c R09: 0079746972756365
R10: 00007fffb4644770 R11: 0000000000000242 R12: 00007f6fcd4cfc80
R13: 00007fffb464476c R14: 0000000000000000 R15: 00007f6fcd4d1e40
 </TASK>
----------------
Code disassembly (best guess):
   0:	85 d2                	test   %edx,%edx
   2:	75 14                	jne    0x18
   4:	e9 9a 00 00 00       	jmp    0xa3
   9:	41 b8 05 00 00 00    	mov    $0x5,%r8d
   f:	4d 85 d2             	test   %r10,%r10
  12:	0f 84 8b 00 00 00    	je     0xa3
  18:	4c 8b 4c 24 20       	mov    0x20(%rsp),%r9
  1d:	65 4c 8b 1c 25 c0 d4 	mov    %gs:0x3d4c0,%r11
  24:	03 00
  26:	31 d2                	xor    %edx,%edx
  28:	eb 08                	jmp    0x32
* 2a:	48 ff c2             	inc    %rdx <-- trapping instruction
  2d:	49 39 d2             	cmp    %rdx,%r10
  30:	74 71                	je     0xa3
  32:	4c 8b 74 d6 10       	mov    0x10(%rsi,%rdx,8),%r14
  37:	65 8b 05 f4 a6 6d 7e 	mov    %gs:0x7e6da6f4(%rip),%eax        # 0x7e6da732
  3e:	a9                   	.byte 0xa9