================================================================================
UBSAN: array-index-out-of-bounds in drivers/input/tablet/aiptek.c:741:31
index 259 is out of range for type 'const int[34]'
CPU: 1 PID: 4193 Comm: kworker/1:3 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_lvl+0x188/0x250 lib/dump_stack.c:106
 ubsan_epilogue+0xa/0x30 lib/ubsan.c:151
 __ubsan_handle_out_of_bounds+0xdf/0xf0 lib/ubsan.c:282
 aiptek_irq+0x1eaa/0x28f0 drivers/input/tablet/aiptek.c:741
 __usb_hcd_giveback_urb+0x35f/0x520 drivers/usb/core/hcd.c:1674
 dummy_timer+0x880/0x30b0 drivers/usb/gadget/udc/dummy_hcd.c:1998
 call_timer_fn+0x17b/0x540 kernel/time/timer.c:1648
 expire_timers kernel/time/timer.c:1699 [inline]
 __run_timers+0x53e/0x800 kernel/time/timer.c:1970
 run_timer_softirq+0x63/0xf0 kernel/time/timer.c:1983
 handle_softirqs+0x339/0x830 kernel/softirq.c:576
 __do_softirq kernel/softirq.c:610 [inline]
 invoke_softirq kernel/softirq.c:450 [inline]
 __irq_exit_rcu+0x13b/0x230 kernel/softirq.c:659
 irq_exit_rcu+0x5/0x20 kernel/softirq.c:671
 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1108 [inline]
 sysvec_apic_timer_interrupt+0xa0/0xc0 arch/x86/kernel/apic/apic.c:1108
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:676
RIP: 0010:console_unlock+0xcad/0x1120 kernel/printk/printk.c:2749
Code: 75 11 e8 c6 dc 18 00 4d 85 ff 75 16 e8 bc dc 18 00 eb 15 e8 b5 dc 18 00 e8 f0 0d 5d 08 4d 85 ff 74 ea e8 a6 dc 18 00 fb 31 ff <89> de e8 fc df 18 00 85 db 0f 94 c0 22 44 24 17 3c 01 75 1f e8 8a
RSP: 0018:ffffc90002f2f1e0 EFLAGS: 00000246
RAX: ffffffff81606c4a RBX: 0000000000000000 RCX: 0000000000100000
RDX: ffffc900162f3000 RSI: 000000000000b651 RDI: 0000000000000000
RBP: ffffc90002f2f450 R08: ffffffff901d80c7 R09: 1ffffffff203b018
R10: dffffc0000000000 R11: fffffbfff203b019 R12: 1ffffffff198d8b9
R13: 0000000000000065 R14: 0000000000000000 R15: 0000000000000200
 vprintk_emit+0xc0/0x150 kernel/printk/printk.c:2274
 dev_vprintk_emit+0x2e1/0x380 drivers/base/core.c:4665
 dev_printk_emit+0xeb/0x140 drivers/base/core.c:4676
 _dev_info+0x11b/0x170 drivers/base/core.c:4734
 announce_device+0xa1/0x2b0 drivers/usb/core/hub.c:2345
 usb_new_device+0x4e7/0x1660 drivers/usb/core/hub.c:2613
 hub_port_connect drivers/usb/core/hub.c:5497 [inline]
 hub_port_connect_change drivers/usb/core/hub.c:5637 [inline]
 port_event drivers/usb/core/hub.c:5799 [inline]
 hub_event+0x2e4a/0x55e0 drivers/usb/core/hub.c:5881
 process_one_work+0x85f/0x1010 kernel/workqueue.c:2310
 worker_thread+0xaa6/0x1290 kernel/workqueue.c:2457
 kthread+0x436/0x520 kernel/kthread.c:334
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:287
 </TASK>
================================================================================
----------------
Code disassembly (best guess):
   0:	75 11                	jne    0x13
   2:	e8 c6 dc 18 00       	call   0x18dccd
   7:	4d 85 ff             	test   %r15,%r15
   a:	75 16                	jne    0x22
   c:	e8 bc dc 18 00       	call   0x18dccd
  11:	eb 15                	jmp    0x28
  13:	e8 b5 dc 18 00       	call   0x18dccd
  18:	e8 f0 0d 5d 08       	call   0x85d0e0d
  1d:	4d 85 ff             	test   %r15,%r15
  20:	74 ea                	je     0xc
  22:	e8 a6 dc 18 00       	call   0x18dccd
  27:	fb                   	sti
  28:	31 ff                	xor    %edi,%edi
* 2a:	89 de                	mov    %ebx,%esi <-- trapping instruction
  2c:	e8 fc df 18 00       	call   0x18e02d
  31:	85 db                	test   %ebx,%ebx
  33:	0f 94 c0             	sete   %al
  36:	22 44 24 17          	and    0x17(%rsp),%al
  3a:	3c 01                	cmp    $0x1,%al
  3c:	75 1f                	jne    0x5d
  3e:	e8                   	.byte 0xe8
  3f:	8a                   	.byte 0x8a