------------[ cut here ]------------
WARNING: CPU: 1 PID: 12 at net/ipv4/route.c:1254 ip_rt_bug+0x2c/0x110 net/ipv4/route.c:1254
Modules linked in:
CPU: 1 UID: 0 PID: 12 Comm: kworker/u8:1 Not tainted 6.12.0-rc7-syzkaller-01770-gdd7207838d38 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/30/2024
Workqueue: bat_events batadv_nc_worker
RIP: 0010:ip_rt_bug+0x2c/0x110 net/ipv4/route.c:1254
Code: 1e fa 41 57 41 56 41 55 41 54 53 48 89 d3 e8 1b 61 72 f7 66 90 e8 14 61 72 f7 31 ff 48 89 de ba 02 00 00 00 e8 65 44 6a 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: 1586aefae82f1d00 RBX: ffff88803443e280 RCX: ffffffff8170cfaa
RDX: dffffc0000000000 RSI: ffffffff8c0acac0 RDI: ffffffff8c610de0
RBP: 0000000000000001 R08: ffffffff942e589f R09: ffffffff8a22890b
R10: dffffc0000000000 R11: fffffbfff285cb14 R12: dffffc0000000000
R13: ffffc90000a188f8 R14: ffff888066663c80 R15: ffff888145e9a1c0
FS:  0000000000000000(0000) GS:ffff8880b8700000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f243e7f9f98 CR3: 000000007aeba000 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:130 [inline]
 ip_send_skb net/ipv4/ip_output.c:1505 [inline]
 ip_push_pending_frames+0xbf/0x150 net/ipv4/ip_output.c:1525
 __icmp_send+0x1013/0x15c0 net/ipv4/icmp.c:779
 ipv4_send_dest_unreach net/ipv4/route.c:1234 [inline]
 ipv4_link_failure+0x62f/0xa10 net/ipv4/route.c:1241
 dst_link_failure include/net/dst.h:429 [inline]
 arp_error_report+0x114/0x160 net/ipv4/arp.c:296
 neigh_invalidate+0x247/0x470 net/core/neighbour.c:1010
 neigh_timer_handler+0x8a5/0xfe0 net/core/neighbour.c:1097
 call_timer_fn+0x18e/0x650 kernel/time/timer.c:1794
 expire_timers kernel/time/timer.c:1845 [inline]
 __run_timers kernel/time/timer.c:2419 [inline]
 __run_timer_base+0x66a/0x8e0 kernel/time/timer.c:2430
 run_timer_base kernel/time/timer.c:2439 [inline]
 run_timer_softirq+0xb7/0x170 kernel/time/timer.c:2449
 handle_softirqs+0x2c5/0x980 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:1049 [inline]
 sysvec_apic_timer_interrupt+0xa6/0xc0 arch/x86/kernel/apic/apic.c:1049
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702
RIP: 0010:trace_lock_acquire include/trace/events/lock.h:24 [inline]
RIP: 0010:lock_acquire+0xdc/0x550 kernel/locking/lockdep.c:5796
Code: 08 0f 83 f4 02 00 00 89 c3 48 89 d8 48 c1 e8 06 48 8d 3c c5 28 74 1d 90 be 08 00 00 00 e8 0c 6f 8e 00 48 0f a3 1d 0c 1c ad 0e <73> 16 e8 3d 7f 0a 00 84 c0 75 0d 80 3d cc d4 96 0e 00 0f 84 f9 02
RSP: 0018:ffffc900001179e0 EFLAGS: 00000257
RAX: 0000000000000001 RBX: 0000000000000001 RCX: ffffffff81705814
RDX: 0000000000000000 RSI: 0000000000000008 RDI: ffffffff901d7428
RBP: ffffc90000117b40 R08: ffffffff901d742f R09: 1ffffffff203ae85
R10: dffffc0000000000 R11: fffffbfff203ae86 R12: 1ffff92000022f44
R13: dffffc0000000000 R14: 0000000000000000 R15: dffffc0000000000
 rcu_lock_acquire include/linux/rcupdate.h:337 [inline]
 rcu_read_lock include/linux/rcupdate.h:849 [inline]
 batadv_nc_purge_orig_hash net/batman-adv/network-coding.c:408 [inline]
 batadv_nc_worker+0xec/0x610 net/batman-adv/network-coding.c:719
 process_one_work kernel/workqueue.c:3229 [inline]
 process_scheduled_works+0xa63/0x1850 kernel/workqueue.c:3310
 worker_thread+0x870/0xd30 kernel/workqueue.c:3391
 kthread+0x2f0/0x390 kernel/kthread.c:389
 ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
 </TASK>
----------------
Code disassembly (best guess):
   0:	08 0f                	or     %cl,(%rdi)
   2:	83 f4 02             	xor    $0x2,%esp
   5:	00 00                	add    %al,(%rax)
   7:	89 c3                	mov    %eax,%ebx
   9:	48 89 d8             	mov    %rbx,%rax
   c:	48 c1 e8 06          	shr    $0x6,%rax
  10:	48 8d 3c c5 28 74 1d 	lea    -0x6fe28bd8(,%rax,8),%rdi
  17:	90
  18:	be 08 00 00 00       	mov    $0x8,%esi
  1d:	e8 0c 6f 8e 00       	call   0x8e6f2e
  22:	48 0f a3 1d 0c 1c ad 	bt     %rbx,0xead1c0c(%rip)        # 0xead1c36
  29:	0e
* 2a:	73 16                	jae    0x42 <-- trapping instruction
  2c:	e8 3d 7f 0a 00       	call   0xa7f6e
  31:	84 c0                	test   %al,%al
  33:	75 0d                	jne    0x42
  35:	80 3d cc d4 96 0e 00 	cmpb   $0x0,0xe96d4cc(%rip)        # 0xe96d508
  3c:	0f                   	.byte 0xf
  3d:	84 f9                	test   %bh,%cl
  3f:	02                   	.byte 0x2