------------[ cut here ]------------
WARNING: CPU: 1 PID: 54 at net/can/isotp.c:841 isotp_tx_timer_handler+0x717/0xcd0 net/can/isotp.c:841
Modules linked in:
CPU: 1 PID: 54 Comm: kworker/u4:3 Not tainted 5.17.0-rc1-next-20220128-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Workqueue: bat_events batadv_nc_worker
RIP: 0010:isotp_tx_timer_handler+0x717/0xcd0 net/can/isotp.c:841
Code: f9 44 0f b6 25 f0 0b 68 05 31 ff 44 89 e6 e8 90 13 3f f9 45 84 e4 0f 85 9d fa ff ff e9 e6 07 21 01 85 ed 75 52 e8 99 0f 3f f9 <0f> 0b 45 31 e4 e8 8f 0f 3f f9 48 8b 74 24 40 48 b8 00 00 00 00 00
RSP: 0018:ffffc90000dc0d50 EFLAGS: 00010246

RAX: 0000000000000000 RBX: ffff88803eec8568 RCX: 0000000000000100
RDX: ffff888017f70000 RSI: ffffffff88398fc7 RDI: 0000000000000003
RBP: 0000000000000000 R08: ffffffff8ae49140 R09: ffffffff8839895f
R10: 0000000000000003 R11: 0000000000000000 R12: 0000000000000000
R13: ffff8880b9d2a880 R14: ffff8880b9d2a600 R15: ffffffff883988b0
FS:  0000000000000000(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b2e821000 CR3: 0000000035d2d000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <IRQ>
 __run_hrtimer kernel/time/hrtimer.c:1685 [inline]
 __hrtimer_run_queues+0x609/0xe50 kernel/time/hrtimer.c:1749
 hrtimer_run_softirq+0x17b/0x360 kernel/time/hrtimer.c:1766
 __do_softirq+0x29b/0x9c2 kernel/softirq.c:558
 invoke_softirq kernel/softirq.c:432 [inline]
 __irq_exit_rcu+0x123/0x180 kernel/softirq.c:637
 irq_exit_rcu+0x5/0x20 kernel/softirq.c:649
 sysvec_apic_timer_interrupt+0x93/0xc0 arch/x86/kernel/apic/apic.c:1097
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:638
RIP: 0010:__local_bh_enable_ip+0xa8/0x120 kernel/softirq.c:390
Code: 1d 7d 30 bb 7e 65 8b 05 76 30 bb 7e a9 00 ff ff 00 74 45 bf 01 00 00 00 e8 e5 40 09 00 e8 d0 a5 37 00 fb 65 8b 05 58 30 bb 7e <85> c0 74 58 5b 5d c3 65 8b 05 a6 37 bb 7e 85 c0 75 a2 0f 0b eb 9e
RSP: 0018:ffffc90001a2fc00 EFLAGS: 00000202

RAX: 0000000080000000 RBX: 00000000fffffe00 RCX: 1ffffffff204ae0e
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffffff88f84a45 R08: 0000000000000001 R09: ffffffff90201a27
R10: 0000000000000001 R11: 0000000000000000 R12: ffff88807b63d7e8
R13: ffff88807b63ccc0 R14: dffffc0000000000 R15: ffffffff88f84b40
 spin_unlock_bh include/linux/spinlock.h:399 [inline]
 batadv_nc_purge_paths+0x2a5/0x3a0 net/batman-adv/network-coding.c:471
 batadv_nc_worker+0x930/0xfa0 net/batman-adv/network-coding.c:722
 process_one_work+0x996/0x1610 kernel/workqueue.c:2289
 worker_thread+0x665/0x1080 kernel/workqueue.c:2436
 kthread+0x2e9/0x3a0 kernel/kthread.c:377
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295
 </TASK>
----------------
Code disassembly (best guess):
   0:	1d 7d 30 bb 7e       	sbb    $0x7ebb307d,%eax
   5:	65 8b 05 76 30 bb 7e 	mov    %gs:0x7ebb3076(%rip),%eax        # 0x7ebb3082
   c:	a9 00 ff ff 00       	test   $0xffff00,%eax
  11:	74 45                	je     0x58
  13:	bf 01 00 00 00       	mov    $0x1,%edi
  18:	e8 e5 40 09 00       	callq  0x94102
  1d:	e8 d0 a5 37 00       	callq  0x37a5f2
  22:	fb                   	sti
  23:	65 8b 05 58 30 bb 7e 	mov    %gs:0x7ebb3058(%rip),%eax        # 0x7ebb3082
* 2a:	85 c0                	test   %eax,%eax <-- trapping instruction
  2c:	74 58                	je     0x86
  2e:	5b                   	pop    %rbx
  2f:	5d                   	pop    %rbp
  30:	c3                   	retq
  31:	65 8b 05 a6 37 bb 7e 	mov    %gs:0x7ebb37a6(%rip),%eax        # 0x7ebb37de
  38:	85 c0                	test   %eax,%eax
  3a:	75 a2                	jne    0xffffffde
  3c:	0f 0b                	ud2
  3e:	eb 9e                	jmp    0xffffffde