------------[ cut here ]------------
WARNING: CPU: 0 PID: 10158 at net/ipv4/route.c:1241 ip_rt_bug+0x2a/0x110 net/ipv4/route.c:1241
Modules linked in:
CPU: 0 PID: 10158 Comm: syz-executor 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 4b 91 b3 f7 66 90 e8 44 91 b3 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:ffffc90000007680 EFLAGS: 00010286
RAX: d97477f46cd9fd00 RBX: ffff888019bed780 RCX: ffffffff8172daca
RDX: dffffc0000000000 RSI: ffffffff8bcabb40 RDI: ffffffff8c202900
RBP: 0000000000000001 R08: ffffffff92fad617 R09: 1ffffffff25f5ac2
R10: dffffc0000000000 R11: fffffbfff25f5ac3 R12: dffffc0000000000
R13: dffffc0000000000 R14: ffff888065bd5640 R15: ffff8880177f0d00
FS:  000055555619c500(0000) GS:ffff8880b9400000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000002006e000 CR3: 000000002ca6e000 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:preempt_count_add+0x34/0x190 kernel/sched/core.c:5865
Code: fb 48 c7 c0 e0 56 7a 94 48 c1 e8 03 49 bf 00 00 00 00 00 fc ff df 42 0f b6 04 38 84 c0 0f 85 ed 00 00 00 83 3d 3c ba 14 13 00 <75> 07 65 8b 05 1b 38 9e 7e 65 01 1d 14 38 9e 7e 48 c7 c0 e0 56 7a
RSP: 0018:ffffc9000971f1c0 EFLAGS: 00000246
RAX: 0000000000000004 RBX: 0000000000000001 RCX: ffffffff947a5603
RDX: 0000000000000000 RSI: 0000000000071226 RDI: 0000000000000001
RBP: ffff88823ffef000 R08: ffffffff8207d35f R09: 1ffffd4000389130
R10: dffffc0000000000 R11: fffff94000389131 R12: dffffc0000000000
R13: 0000000000071226 R14: 1ffff920012e3e50 R15: dffffc0000000000
 rcu_read_lock_sched include/linux/rcupdate.h:871 [inline]
 pfn_valid+0xef/0x450 include/linux/mmzone.h:2022
 page_table_check_set+0x25/0x550 mm/page_table_check.c:110
 __page_table_check_ptes_set+0x30f/0x410 mm/page_table_check.c:225
 page_table_check_ptes_set include/linux/page_table_check.h:74 [inline]
 set_ptes include/linux/pgtable.h:267 [inline]
 __copy_present_ptes mm/memory.c:955 [inline]
 copy_present_ptes mm/memory.c:1038 [inline]
 copy_pte_range mm/memory.c:1153 [inline]
 copy_pmd_range+0x4728/0x84c0 mm/memory.c:1240
 copy_pud_range mm/memory.c:1277 [inline]
 copy_p4d_range mm/memory.c:1301 [inline]
 copy_page_range+0x99f/0xe90 mm/memory.c:1399
 dup_mmap kernel/fork.c:751 [inline]
 dup_mm kernel/fork.c:1688 [inline]
 copy_mm+0x128d/0x2020 kernel/fork.c:1737
 copy_process+0x187a/0x3dc0 kernel/fork.c:2390
 kernel_clone+0x226/0x8f0 kernel/fork.c:2797
 __do_sys_clone kernel/fork.c:2940 [inline]
 __se_sys_clone kernel/fork.c:2924 [inline]
 __x64_sys_clone+0x258/0x2a0 kernel/fork.c:2924
 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: 0033:0x7f942016c4d3
Code: 1f 84 00 00 00 00 00 64 48 8b 04 25 10 00 00 00 45 31 c0 31 d2 31 f6 bf 11 00 20 01 4c 8d 90 d0 02 00 00 b8 38 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 35 89 c2 85 c0 75 2c 64 48 8b 04 25 10 00 00
RSP: 002b:00007f942042fc78 EFLAGS: 00000246 ORIG_RAX: 0000000000000038
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f942016c4d3
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000001200011
RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000000000
R10: 000055555619c7d0 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000001 R15: 0000000000000000
 </TASK>
----------------
Code disassembly (best guess):
   0:	fb                   	sti
   1:	48 c7 c0 e0 56 7a 94 	mov    $0xffffffff947a56e0,%rax
   8:	48 c1 e8 03          	shr    $0x3,%rax
   c:	49 bf 00 00 00 00 00 	movabs $0xdffffc0000000000,%r15
  13:	fc ff df
  16:	42 0f b6 04 38       	movzbl (%rax,%r15,1),%eax
  1b:	84 c0                	test   %al,%al
  1d:	0f 85 ed 00 00 00    	jne    0x110
  23:	83 3d 3c ba 14 13 00 	cmpl   $0x0,0x1314ba3c(%rip)        # 0x1314ba66
* 2a:	75 07                	jne    0x33 <-- trapping instruction
  2c:	65 8b 05 1b 38 9e 7e 	mov    %gs:0x7e9e381b(%rip),%eax        # 0x7e9e384e
  33:	65 01 1d 14 38 9e 7e 	add    %ebx,%gs:0x7e9e3814(%rip)        # 0x7e9e384e
  3a:	48                   	rex.W
  3b:	c7                   	.byte 0xc7
  3c:	c0 e0 56             	shl    $0x56,%al
  3f:	7a                   	.byte 0x7a