------------[ cut here ]------------
WARNING: CPU: 1 PID: 31844 at net/ipv4/route.c:1241 ip_rt_bug+0x2c/0x110 net/ipv4/route.c:1241
Modules linked in:
CPU: 1 UID: 0 PID: 31844 Comm: syz.4.5735 Not tainted 6.11.0-rc2-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/27/2024
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 7b aa 82 f7 66 90 e8 74 aa 82 f7 31 ff 48 89 de ba 02 00 00 00 e8 15 a4 6b 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: 78cb0e371b2eff00 RBX: ffff88802e4b03c0 RCX: ffffffff81702eca
RDX: dffffc0000000000 RSI: ffffffff8c0ad540 RDI: ffffffff8c605cc0
RBP: 0000000000000001 R08: ffffffff9372c89f R09: 1ffffffff26e5913
R10: dffffc0000000000 R11: fffffbfff26e5914 R12: dffffc0000000000
R13: dffffc0000000000 R14: ffff88804dbc0000 R15: ffff888017bda080
FS:  00007f6a774bd6c0(0000) GS:ffff8880b9300000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f7775241630 CR3: 000000004fb58000 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:1495 [inline]
 ip_push_pending_frames+0xbf/0x150 net/ipv4/ip_output.c:1515
 __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:xas_find+0x0/0x960 lib/xarray.c:1254
Code: 48 c7 c7 20 e8 fe 8f 48 89 ee 48 89 da e8 68 c9 38 f9 e9 d6 fa ff ff 0f 1f 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 <f3> 0f 1e fa 55 41 57 41 56 41 55 41 54 53 48 83 ec 38 49 89 f7 48
RSP: 0018:ffffc90004c2f290 EFLAGS: 00000286
RAX: ffffffff81c9a31a RBX: 00000000000009bf RCX: 0000000000040000
RDX: ffffc90004981000 RSI: 00000000000009bf RDI: ffffc90004c2f460
RBP: ffffc90004c2f510 R08: ffffffff81c99fe1 R09: 1ffffffff26e5900
R10: dffffc0000000000 R11: fffffbfff26e5901 R12: ffffc90004c2f460
R13: dffffc0000000000 R14: ffffffff81cb1c9f R15: 1ffff92000985f34
 next_uptodate_folio+0x29/0xa40 mm/filemap.c:3464
 filemap_map_pages+0x302/0x1e70 mm/filemap.c:3616
 do_fault_around mm/memory.c:5019 [inline]
 do_read_fault mm/memory.c:5052 [inline]
 do_fault mm/memory.c:5191 [inline]
 do_pte_missing mm/memory.c:3947 [inline]
 handle_pte_fault+0x39aa/0x6eb0 mm/memory.c:5522
 __handle_mm_fault mm/memory.c:5665 [inline]
 handle_mm_fault+0x1029/0x1980 mm/memory.c:5833
 faultin_page mm/gup.c:1194 [inline]
 __get_user_pages+0x6ec/0x16a0 mm/gup.c:1493
 populate_vma_page_range+0x264/0x330 mm/gup.c:1932
 __mm_populate+0x27a/0x460 mm/gup.c:2035
 mm_populate include/linux/mm.h:3415 [inline]
 vm_mmap_pgoff+0x2c3/0x3d0 mm/util.c:593
 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: 0033:0x7f6a767779f9
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
vkms_vblank_simulate: vblank timer overrun
RSP: 002b:00007f6a774bd048 EFLAGS: 00000246 ORIG_RAX: 0000000000000009
RAX: ffffffffffffffda RBX: 00007f6a76905f80 RCX: 00007f6a767779f9
RDX: b635773f06ebbeee RSI: 0000000000b36000 RDI: 0000000020000000
RBP: 00007f6a767e58ee R08: ffffffffffffffff R09: 0000000000000000
R10: 0000000000008031 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000000b R14: 00007f6a76905f80 R15: 00007f6a76a2fa38
 </TASK>
----------------
Code disassembly (best guess):
   0:	48 c7 c7 20 e8 fe 8f 	mov    $0xffffffff8ffee820,%rdi
   7:	48 89 ee             	mov    %rbp,%rsi
   a:	48 89 da             	mov    %rbx,%rdx
   d:	e8 68 c9 38 f9       	call   0xf938c97a
  12:	e9 d6 fa ff ff       	jmp    0xfffffaed
  17:	0f 1f 00             	nopl   (%rax)
  1a:	90                   	nop
  1b:	90                   	nop
  1c:	90                   	nop
  1d:	90                   	nop
  1e:	90                   	nop
  1f:	90                   	nop
  20:	90                   	nop
  21:	90                   	nop
  22:	90                   	nop
  23:	90                   	nop
  24:	90                   	nop
  25:	90                   	nop
  26:	90                   	nop
  27:	90                   	nop
  28:	90                   	nop
  29:	90                   	nop
* 2a:	f3 0f 1e fa          	endbr64 <-- trapping instruction
  2e:	55                   	push   %rbp
  2f:	41 57                	push   %r15
  31:	41 56                	push   %r14
  33:	41 55                	push   %r13
  35:	41 54                	push   %r12
  37:	53                   	push   %rbx
  38:	48 83 ec 38          	sub    $0x38,%rsp
  3c:	49 89 f7             	mov    %rsi,%r15
  3f:	48                   	rex.W