------------[ cut here ]------------
WARNING: CPU: 0 PID: 13158 at net/ipv4/route.c:1259 kfree_skb include/linux/skbuff.h:1218 [inline]
WARNING: CPU: 0 PID: 13158 at net/ipv4/route.c:1259 ip_rt_bug+0x28/0x120 net/ipv4/route.c:1258
Modules linked in:
CPU: 0 PID: 13158 Comm: kworker/u4:9 Not tainted 6.2.0-rc6-syzkaller-00169-ga05e7a67986c #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/12/2023
Workqueue: bat_events batadv_nc_worker
RIP: 0010:ip_rt_bug+0x28/0x120 net/ipv4/route.c:1259
Code: 00 00 f3 0f 1e fa 41 54 55 48 89 d5 53 48 83 ec 08 e8 4c bf 35 f9 66 90 e8 45 bf 35 f9 be 02 00 00 00 48 89 ef e8 a8 dc 78 ff <0f> 0b 48 83 c4 08 31 c0 5b 5d 41 5c c3 e8 26 bf 35 f9 48 8d 7d 10
RSP: 0018:ffffc90000007870 EFLAGS: 00010246
RAX: 0000000000000000 RBX: ffff88807b6c9cc0 RCX: 0000000000000100
RDX: ffff88801c7a3a80 RSI: ffffffff884b33a8 RDI: 0000000000000000
RBP: ffff888038ded140 R08: 0000000000000000 R09: ffffffff91342b57
R10: 0000000000000001 R11: 0000000000000001 R12: ffff88801c1b2100
R13: ffff888038ded140 R14: 0000000000000000 R15: ffff888038ded198
FS:  0000000000000000(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b32a2b000 CR3: 000000004d68c000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <IRQ>
 dst_output include/net/dst.h:444 [inline]
 ip_local_out net/ipv4/ip_output.c:126 [inline]
 ip_send_skb net/ipv4/ip_output.c:1586 [inline]
 ip_push_pending_frames+0x129/0x2b0 net/ipv4/ip_output.c:1606
 icmp_push_reply+0x319/0x440 net/ipv4/icmp.c:386
 __icmp_send+0xb80/0x13f0 net/ipv4/icmp.c:762
 ipv4_send_dest_unreach net/ipv4/route.c:1239 [inline]
 ipv4_link_failure+0x5aa/0x9b0 net/ipv4/route.c:1246
 dst_link_failure include/net/dst.h:423 [inline]
 arp_error_report+0xcb/0x1c0 net/ipv4/arp.c:296
 neigh_invalidate+0x20d/0x560 net/core/neighbour.c:1067
 neigh_timer_handler+0xd9e/0x1150 net/core/neighbour.c:1154
 call_timer_fn+0x1da/0x7c0 kernel/time/timer.c:1700
 expire_timers+0x2c6/0x5c0 kernel/time/timer.c:1751
 __run_timers kernel/time/timer.c:2022 [inline]
 __run_timers kernel/time/timer.c:1995 [inline]
 run_timer_softirq+0x326/0x910 kernel/time/timer.c:2035
 __do_softirq+0x1fb/0xadc kernel/softirq.c:571
 invoke_softirq kernel/softirq.c:445 [inline]
 __irq_exit_rcu+0x123/0x180 kernel/softirq.c:650
 irq_exit_rcu+0x9/0x20 kernel/softirq.c:662
 sysvec_apic_timer_interrupt+0x97/0xc0 arch/x86/kernel/apic/apic.c:1107
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:649
RIP: 0010:__raw_spin_unlock_irq include/linux/spinlock_api_smp.h:160 [inline]
RIP: 0010:_raw_spin_unlock_irq+0x29/0x50 kernel/locking/spinlock.c:202
Code: 90 f3 0f 1e fa 55 48 8b 74 24 08 48 89 fd 48 83 c7 18 e8 4a 03 58 f7 48 89 ef e8 f2 6f 58 f7 e8 4d ea 7b f7 fb bf 01 00 00 00 <e8> 22 d5 4a f7 65 8b 05 23 21 f8 75 85 c0 74 02 5d c3 e8 d0 f5 f4
RSP: 0018:ffffc9000a85fd08 EFLAGS: 00000202
RAX: 0000000000b60313 RBX: 0000000000000100 RCX: 1ffffffff1ce6121
RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000001
RBP: ffff888012479800 R08: 0000000000000001 R09: 0000000000000001
R10: ffffed100248f300 R11: 0000000000000000 R12: ffff88807ef896e8
R13: ffff88807ef896d8 R14: ffff8880752e0200 R15: ffff888012479800
 process_one_work+0x87f/0x1710 kernel/workqueue.c:2262
 worker_thread+0x669/0x1090 kernel/workqueue.c:2436
 kthread+0x2e8/0x3a0 kernel/kthread.c:376
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308
 </TASK>
----------------
Code disassembly (best guess):
   0:	90                   	nop
   1:	f3 0f 1e fa          	endbr64
   5:	55                   	push   %rbp
   6:	48 8b 74 24 08       	mov    0x8(%rsp),%rsi
   b:	48 89 fd             	mov    %rdi,%rbp
   e:	48 83 c7 18          	add    $0x18,%rdi
  12:	e8 4a 03 58 f7       	callq  0xf7580361
  17:	48 89 ef             	mov    %rbp,%rdi
  1a:	e8 f2 6f 58 f7       	callq  0xf7587011
  1f:	e8 4d ea 7b f7       	callq  0xf77bea71
  24:	fb                   	sti
  25:	bf 01 00 00 00       	mov    $0x1,%edi
* 2a:	e8 22 d5 4a f7       	callq  0xf74ad551 <-- trapping instruction
  2f:	65 8b 05 23 21 f8 75 	mov    %gs:0x75f82123(%rip),%eax        # 0x75f82159
  36:	85 c0                	test   %eax,%eax
  38:	74 02                	je     0x3c
  3a:	5d                   	pop    %rbp
  3b:	c3                   	retq
  3c:	e8                   	.byte 0xe8
  3d:	d0 f5                	shl    %ch
  3f:	f4                   	hlt