================================================================================
UBSAN: array-index-out-of-bounds in drivers/input/tablet/aiptek.c:724:31
index 63 is out of range for type 'const int[34]'
CPU: 0 PID: 335 Comm: kworker/0:5 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026
Workqueue: usb_hub_wq hub_event
Call Trace:
 <IRQ>
 __dump_stack+0x21/0x30 lib/dump_stack.c:88
 dump_stack_lvl+0x110/0x170 lib/dump_stack.c:106
 dump_stack+0x15/0x20 lib/dump_stack.c:113
 ubsan_epilogue+0xe/0x40 lib/ubsan.c:151
 __ubsan_handle_out_of_bounds+0xdf/0xf0 lib/ubsan.c:282
 aiptek_irq+0x2153/0x29b0 drivers/input/tablet/aiptek.c:724
 __usb_hcd_giveback_urb+0x333/0x4f0 drivers/usb/core/hcd.c:1674
 usb_hcd_giveback_urb+0x119/0x410 drivers/usb/core/hcd.c:1751
 dummy_timer+0x8be/0x30e0 drivers/usb/gadget/udc/dummy_hcd.c:1998
 call_timer_fn+0x38/0x290 kernel/time/timer.c:1459
 expire_timers kernel/time/timer.c:1504 [inline]
 __run_timers+0x650/0x9e0 kernel/time/timer.c:1775
 run_timer_softirq+0x6a/0xf0 kernel/time/timer.c:1788
 handle_softirqs+0x250/0x560 kernel/softirq.c:583
 __do_softirq kernel/softirq.c:621 [inline]
 invoke_softirq kernel/softirq.c:443 [inline]
 __irq_exit_rcu+0x52/0xf0 kernel/softirq.c:670
 irq_exit_rcu+0x9/0x10 kernel/softirq.c:682
 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1108 [inline]
 sysvec_apic_timer_interrupt+0xa9/0xc0 arch/x86/kernel/apic/apic.c:1108
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x1b/0x20 arch/x86/include/asm/idtentry.h:676
RIP: 0010:console_unlock+0xae1/0xec0 kernel/printk/printk.c:2775
Code: 28 4c 89 f6 48 81 e6 00 02 00 00 31 ff e8 67 d3 17 00 49 81 e6 00 02 00 00 75 07 e8 19 cf 17 00 eb 06 e8 12 cf 17 00 fb 89 d8 <0a> 44 24 17 a8 01 74 0e e8 02 cf 17 00 85 db 74 19 e9 1e 03 00 00
RSP: 0018:ffffc9000a15f300 EFLAGS: 00000283
RAX: 0000000000000001 RBX: 0000000000000001 RCX: 0000000000100000
RDX: ffffc900090da000 RSI: 000000000001d572 RDI: 000000000001d573
RBP: ffffc9000a15f570 R08: 0000000000000003 R09: 0000000000000004
R10: dffffc0000000000 R11: fffff5200142be50 R12: dffffc0000000000
R13: fffff5200142be6c R14: 0000000000000200 R15: ffffffff86a179c8
 vprintk_emit+0x13f/0x320 kernel/printk/printk.c:2294
 dev_vprintk_emit+0x2e4/0x380 drivers/base/core.c:4648
 dev_printk_emit+0xeb/0x140 drivers/base/core.c:4659
 __dev_printk+0x17f/0x1b0 drivers/base/core.c:4671
 _dev_info+0x11b/0x170 drivers/base/core.c:4717
 usb_disconnect+0xe3/0x850 drivers/usb/core/hub.c:2270
 hub_port_connect drivers/usb/core/hub.c:5394 [inline]
 hub_port_connect_change drivers/usb/core/hub.c:5695 [inline]
 port_event drivers/usb/core/hub.c:5861 [inline]
 hub_event+0x1af3/0x4600 drivers/usb/core/hub.c:5943
 process_one_work+0x6be/0xba0 kernel/workqueue.c:2328
 process_scheduled_works kernel/workqueue.c:2391 [inline]
 worker_thread+0xd10/0x1200 kernel/workqueue.c:2477
 kthread+0x411/0x500 kernel/kthread.c:337
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:287
 </TASK>
================================================================================
aiptek 3-1:0.0: aiptek_irq - usb_submit_urb failed with result -19
----------------
Code disassembly (best guess):
   0:	28 4c 89 f6          	sub    %cl,-0xa(%rcx,%rcx,4)
   4:	48 81 e6 00 02 00 00 	and    $0x200,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 67 d3 17 00       	call   0x17d379
  12:	49 81 e6 00 02 00 00 	and    $0x200,%r14
  19:	75 07                	jne    0x22
  1b:	e8 19 cf 17 00       	call   0x17cf39
  20:	eb 06                	jmp    0x28
  22:	e8 12 cf 17 00       	call   0x17cf39
  27:	fb                   	sti
  28:	89 d8                	mov    %ebx,%eax
* 2a:	0a 44 24 17          	or     0x17(%rsp),%al <-- trapping instruction
  2e:	a8 01                	test   $0x1,%al
  30:	74 0e                	je     0x40
  32:	e8 02 cf 17 00       	call   0x17cf39
  37:	85 db                	test   %ebx,%ebx
  39:	74 19                	je     0x54
  3b:	e9 1e 03 00 00       	jmp    0x35e