Oops: divide error: 0000 [#1] SMP KASAN NOPTI
CPU: 0 UID: 0 PID: 0 Comm: swapper/0 Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/02/2025
RIP: 0010:comedi_inc_scan_progress+0x1cc/0x340 drivers/comedi/drivers.c:563
Code: 00 00 00 03 43 2c 48 ba 00 00 00 00 00 fc ff df 48 89 f9 48 c1 e9 03 0f b6 14 11 84 d2 74 09 80 fa 03 0f 8e 53 01 00 00 31 d2 <f7> b3 80 00 00 00 89 53 2c e8 46 94 f3 f8 48 8d 7b 34 48 b8 00 00
RSP: 0018:ffffc90000007d90 EFLAGS: 00010046
RAX: 0000000000000001 RBX: ffff8880357aec00 RCX: 1ffff11006af5d90
RDX: 0000000000000000 RSI: ffffffff88c9b568 RDI: ffff8880357aec80
RBP: 0000000000000000 R08: 0000000000000005 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000000002
R13: 0000000000000000 R14: 0000000000000001 R15: 0000000000000000
FS:  0000000000000000(0000) GS:ffff8881249d8000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000200000083030 CR3: 00000000533cf000 CR4: 00000000003526f0
Call Trace:
 <IRQ>
 comedi_buf_write_samples+0x406/0x640 drivers/comedi/comedi_buf.c:603
 parport_interrupt+0xec/0x150 drivers/comedi/drivers/comedi_parport.c:218
 __handle_irq_event_percpu+0x236/0x920 kernel/irq/handle.c:203
 handle_irq_event_percpu kernel/irq/handle.c:240 [inline]
 handle_irq_event+0xab/0x1e0 kernel/irq/handle.c:257
 handle_edge_irq+0x3ca/0x9e0 kernel/irq/chip.c:855
 generic_handle_irq_desc include/linux/irqdesc.h:173 [inline]
 handle_irq arch/x86/kernel/irq.c:254 [inline]
 call_irq_handler arch/x86/kernel/irq.c:310 [inline]
 __common_interrupt+0xd0/0x2f0 arch/x86/kernel/irq.c:325
 common_interrupt+0xba/0xe0 arch/x86/kernel/irq.c:318
 </IRQ>
 <TASK>
 asm_common_interrupt+0x26/0x40 arch/x86/include/asm/idtentry.h:688
RIP: 0010:pv_native_safe_halt+0xf/0x20 arch/x86/kernel/paravirt.c:82
Code: 67 74 02 c3 cc cc cc cc 0f 1f 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 66 90 0f 00 2d 43 75 23 00 fb f4 <e9> 3c 0a 03 00 66 2e 0f 1f 84 00 00 00 00 00 66 90 90 90 90 90 90
RSP: 0018:ffffffff8e007df8 EFLAGS: 000002c6
RAX: 0000000003503a21 RBX: 0000000000000000 RCX: ffffffff8b66b2a9
RDX: 0000000000000000 RSI: ffffffff8db03325 RDI: ffffffff8bf1dec0
RBP: fffffbfff1c12f40 R08: 0000000000000001 R09: ffffed1017086655
R10: ffff8880b84332ab R11: 0000000000000001 R12: 0000000000000000
R13: ffffffff8e097a00 R14: ffffffff908313d0 R15: 0000000000000000
 arch_safe_halt arch/x86/include/asm/paravirt.h:107 [inline]
 default_idle+0x13/0x20 arch/x86/kernel/process.c:767
 default_idle_call+0x6c/0xb0 kernel/sched/idle.c:122
 cpuidle_idle_call kernel/sched/idle.c:190 [inline]
 do_idle+0x38d/0x500 kernel/sched/idle.c:330
 cpu_startup_entry+0x4f/0x60 kernel/sched/idle.c:428
 rest_init+0x16b/0x2b0 init/main.c:757
 start_kernel+0x3f6/0x4e0 init/main.c:1111
 x86_64_start_reservations+0x18/0x30 arch/x86/kernel/head64.c:310
 x86_64_start_kernel+0x130/0x190 arch/x86/kernel/head64.c:291
 common_startup_64+0x13e/0x148
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:comedi_inc_scan_progress+0x1cc/0x340 drivers/comedi/drivers.c:563
Code: 00 00 00 03 43 2c 48 ba 00 00 00 00 00 fc ff df 48 89 f9 48 c1 e9 03 0f b6 14 11 84 d2 74 09 80 fa 03 0f 8e 53 01 00 00 31 d2 <f7> b3 80 00 00 00 89 53 2c e8 46 94 f3 f8 48 8d 7b 34 48 b8 00 00
RSP: 0018:ffffc90000007d90 EFLAGS: 00010046
RAX: 0000000000000001 RBX: ffff8880357aec00 RCX: 1ffff11006af5d90
RDX: 0000000000000000 RSI: ffffffff88c9b568 RDI: ffff8880357aec80
RBP: 0000000000000000 R08: 0000000000000005 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000000002
R13: 0000000000000000 R14: 0000000000000001 R15: 0000000000000000
FS:  0000000000000000(0000) GS:ffff8881249d8000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000200000083030 CR3: 00000000533cf000 CR4: 00000000003526f0
----------------
Code disassembly (best guess), 1 bytes skipped:
   0:	00 00                	add    %al,(%rax)
   2:	03 43 2c             	add    0x2c(%rbx),%eax
   5:	48 ba 00 00 00 00 00 	movabs $0xdffffc0000000000,%rdx
   c:	fc ff df
   f:	48 89 f9             	mov    %rdi,%rcx
  12:	48 c1 e9 03          	shr    $0x3,%rcx
  16:	0f b6 14 11          	movzbl (%rcx,%rdx,1),%edx
  1a:	84 d2                	test   %dl,%dl
  1c:	74 09                	je     0x27
  1e:	80 fa 03             	cmp    $0x3,%dl
  21:	0f 8e 53 01 00 00    	jle    0x17a
  27:	31 d2                	xor    %edx,%edx
* 29:	f7 b3 80 00 00 00    	divl   0x80(%rbx) <-- trapping instruction
  2f:	89 53 2c             	mov    %edx,0x2c(%rbx)
  32:	e8 46 94 f3 f8       	call   0xf8f3947d
  37:	48 8d 7b 34          	lea    0x34(%rbx),%rdi
  3b:	48                   	rex.W
  3c:	b8                   	.byte 0xb8