================================================================================
UBSAN: array-index-out-of-bounds in drivers/input/tablet/aiptek.c:685:31
index 68 is out of range for type 'const int[34]'
CPU: 1 PID: 0 Comm: swapper/1 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026
Call Trace:
 <IRQ>
 __dump_stack+0x21/0x24 lib/dump_stack.c:77
 dump_stack_lvl+0x1a7/0x208 lib/dump_stack.c:118
 dump_stack+0x15/0x1c lib/dump_stack.c:135
 ubsan_epilogue+0xe/0x40 lib/ubsan.c:148
 __ubsan_handle_out_of_bounds+0xdf/0xf0 lib/ubsan.c:347
 aiptek_irq+0x24ac/0x2860 drivers/input/tablet/aiptek.c:685
 __usb_hcd_giveback_urb+0x32f/0x4f0 drivers/usb/core/hcd.c:1674
 usb_hcd_giveback_urb+0x11d/0x3f0 drivers/usb/core/hcd.c:1748
 dummy_timer+0xa34/0x31d0 drivers/usb/gadget/udc/dummy_hcd.c:1986
 call_timer_fn+0x38/0x290 kernel/time/timer.c:1450
 expire_timers kernel/time/timer.c:1495 [inline]
 __run_timers+0x637/0x9a0 kernel/time/timer.c:1789
 run_timer_softirq+0x6a/0xf0 kernel/time/timer.c:1802
 __do_softirq+0x255/0x563 kernel/softirq.c:309
 asm_call_irq_on_stack+0xf/0x20
 </IRQ>
 __run_on_irqstack arch/x86/include/asm/irq_stack.h:26 [inline]
 run_on_irqstack_cond arch/x86/include/asm/irq_stack.h:77 [inline]
 do_softirq_own_stack+0x60/0x80 arch/x86/kernel/irq_64.c:77
 invoke_softirq kernel/softirq.c:405 [inline]
 __irq_exit_rcu+0x128/0x150 kernel/softirq.c:435
 irq_exit_rcu+0x9/0x10 kernel/softirq.c:447
 sysvec_apic_timer_interrupt+0xbf/0xe0 arch/x86/kernel/apic/apic.c:1106
 asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:635
RIP: 0010:default_idle+0x12/0x20 arch/x86/kernel/process.c:718
Code: 49 bd 00 00 00 00 00 fc ff df e9 68 ff ff ff e8 74 f8 fa ff 00 00 cc cc 55 48 89 e5 0f 1f 44 00 00 0f 00 2d 30 76 63 00 fb f4 <5d> c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 55 48 89 e5 41 57 41 56
RSP: 0018:ffffc90000107db8 EFLAGS: 00000242
RAX: ffff8881f7100000 RBX: ffff888100292780 RCX: 00000000000f421a
RDX: 0000000000000001 RSI: ffffffff85405e00 RDI: ffffffff85405dc0
RBP: ffffc90000107db8 R08: ffff8881f71573d3 R09: 1ffff1103ee2ae7a
R10: dffffc0000000000 R11: ffffed103ee2ae7b R12: 0000000000000000
R13: 1ffff110200524f0 R14: dffffc0000000000 R15: dffffc0000000000
 arch_cpu_idle+0xa/0x10 arch/x86/kernel/process.c:709
 default_idle_call+0x71/0x1d0 kernel/sched/idle.c:114
 cpuidle_idle_call kernel/sched/idle.c:204 [inline]
 do_idle+0x368/0x620 kernel/sched/idle.c:328
 cpu_startup_entry+0x18/0x20 kernel/sched/idle.c:425
 start_secondary+0x2cb/0x380 arch/x86/kernel/smpboot.c:276
 secondary_startup_64_no_verify+0xad/0xbb
================================================================================
----------------
Code disassembly (best guess):
   0:	49 bd 00 00 00 00 00 	movabs $0xdffffc0000000000,%r13
   7:	fc ff df
   a:	e9 68 ff ff ff       	jmp    0xffffff77
   f:	e8 74 f8 fa ff       	call   0xfffaf888
  14:	00 00                	add    %al,(%rax)
  16:	cc                   	int3
  17:	cc                   	int3
  18:	55                   	push   %rbp
  19:	48 89 e5             	mov    %rsp,%rbp
  1c:	0f 1f 44 00 00       	nopl   0x0(%rax,%rax,1)
  21:	0f 00 2d 30 76 63 00 	verw   0x637630(%rip)        # 0x637658
  28:	fb                   	sti
  29:	f4                   	hlt
* 2a:	5d                   	pop    %rbp <-- trapping instruction
  2b:	c3                   	ret
  2c:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  33:	00 00 00
  36:	66 90                	xchg   %ax,%ax
  38:	55                   	push   %rbp
  39:	48 89 e5             	mov    %rsp,%rbp
  3c:	41 57                	push   %r15
  3e:	41 56                	push   %r14