------------[ cut here ]------------
UBSAN: array-index-out-of-bounds in drivers/input/tablet/aiptek.c:741:31
index 24800 is out of range for type 'const int[34]'
CPU: 0 UID: 0 PID: 0 Comm: swapper/0 Not tainted syzkaller #0 d17067fa43c370e744802cb602e9182a4a42e9ef
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
Call Trace:
 <IRQ>
 __dump_stack+0x21/0x30 lib/dump_stack.c:94
 dump_stack_lvl+0x140/0x1c0 lib/dump_stack.c:120
 dump_stack+0x19/0x20 lib/dump_stack.c:129
 ubsan_epilogue+0xe/0x40 lib/ubsan.c:231
 __ubsan_handle_out_of_bounds+0xe8/0xf0 lib/ubsan.c:429
 aiptek_irq+0x20cb/0x2a00 drivers/input/tablet/aiptek.c:741
 __usb_hcd_giveback_urb+0x375/0x540 drivers/usb/core/hcd.c:1648
 usb_hcd_giveback_urb+0x11b/0x410 drivers/usb/core/hcd.c:1732
 dummy_timer+0x816/0x4300 drivers/usb/gadget/udc/dummy_hcd.c:2003
 __run_hrtimer kernel/time/hrtimer.c:1753 [inline]
 __hrtimer_run_queues+0x3ab/0x8e0 kernel/time/hrtimer.c:1817
 hrtimer_run_softirq+0x159/0x560 kernel/time/hrtimer.c:1834
 handle_softirqs+0x1aa/0x630 kernel/softirq.c:621
 __do_softirq kernel/softirq.c:659 [inline]
 invoke_softirq kernel/softirq.c:476 [inline]
 __irq_exit_rcu+0x47/0xb0 kernel/softirq.c:708
 irq_exit_rcu+0xd/0x30 kernel/softirq.c:720
 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1049 [inline]
 sysvec_apic_timer_interrupt+0x82/0x90 arch/x86/kernel/apic/apic.c:1049
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x1f/0x30 arch/x86/include/asm/idtentry.h:702
RIP: 0010:pv_native_safe_halt+0x13/0x20 arch/x86/kernel/paravirt.c:106
Code: cc cc cc cc cc cc cc b8 9e 8c 92 0c 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 66 90 0f 00 2d f3 df 3e 00 55 48 89 e5 fb f4 <5d> c3 cc cc cc cc cc cc cc cc cc cc cc b8 00 00 00 00 90 90 90 90
RSP: 0018:ffffffff87407da0 EFLAGS: 000002c6
RAX: ffff8881f6e00000 RBX: ffffffff874156c0 RCX: ffffffff85a87bcd
RDX: 0000000000000001 RSI: 0000000000000004 RDI: 0000000000171294
RBP: ffffffff87407da0 R08: ffff8881f6e395eb R09: 1ffff1103edc72bd
R10: dffffc0000000000 R11: ffffed103edc72be R12: 0000000000000000
R13: 1ffffffff0e82ad8 R14: dffffc0000000000 R15: ffffffff87ed4668
 arch_safe_halt arch/x86/include/asm/paravirt.h:112 [inline]
 default_idle+0x17/0x30 arch/x86/kernel/process.c:754
 arch_cpu_idle+0xd/0x20 arch/x86/kernel/process.c:791
 default_idle_call+0x3e/0x80 kernel/sched/idle.c:117
 cpuidle_idle_call kernel/sched/idle.c:193 [inline]
 do_idle+0x2fc/0x570 kernel/sched/idle.c:346
 cpu_startup_entry+0x47/0x60 kernel/sched/idle.c:445
 rest_init+0x10b/0x130 init/main.c:760
 start_kernel+0x462/0x4bb init/main.c:1242
 x86_64_start_reservations+0x2e/0x30 arch/x86/kernel/head64.c:507
 x86_64_start_kernel+0x6a/0x7b arch/x86/kernel/head64.c:488
 common_startup_64+0x13b/0x157
 </TASK>
---[ end trace ]---
------------[ cut here ]------------
UBSAN: array-index-out-of-bounds in drivers/input/tablet/aiptek.c:763:30
index 24801 is out of range for type 'const int[34]'
CPU: 0 UID: 0 PID: 0 Comm: swapper/0 Not tainted syzkaller #0 d17067fa43c370e744802cb602e9182a4a42e9ef
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
Call Trace:
 <IRQ>
 __dump_stack+0x21/0x30 lib/dump_stack.c:94
 dump_stack_lvl+0x140/0x1c0 lib/dump_stack.c:120
 dump_stack+0x19/0x20 lib/dump_stack.c:129
 ubsan_epilogue+0xe/0x40 lib/ubsan.c:231
 __ubsan_handle_out_of_bounds+0xe8/0xf0 lib/ubsan.c:429
 aiptek_irq+0x1f85/0x2a00 drivers/input/tablet/aiptek.c:763
 __usb_hcd_giveback_urb+0x375/0x540 drivers/usb/core/hcd.c:1648
 usb_hcd_giveback_urb+0x11b/0x410 drivers/usb/core/hcd.c:1732
 dummy_timer+0x816/0x4300 drivers/usb/gadget/udc/dummy_hcd.c:2003
 __run_hrtimer kernel/time/hrtimer.c:1753 [inline]
 __hrtimer_run_queues+0x3ab/0x8e0 kernel/time/hrtimer.c:1817
 hrtimer_run_softirq+0x159/0x560 kernel/time/hrtimer.c:1834
 handle_softirqs+0x1aa/0x630 kernel/softirq.c:621
 __do_softirq kernel/softirq.c:659 [inline]
 invoke_softirq kernel/softirq.c:476 [inline]
 __irq_exit_rcu+0x47/0xb0 kernel/softirq.c:708
 irq_exit_rcu+0xd/0x30 kernel/softirq.c:720
 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1049 [inline]
 sysvec_apic_timer_interrupt+0x82/0x90 arch/x86/kernel/apic/apic.c:1049
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x1f/0x30 arch/x86/include/asm/idtentry.h:702
RIP: 0010:pv_native_safe_halt+0x13/0x20 arch/x86/kernel/paravirt.c:106
Code: cc cc cc cc cc cc cc b8 9e 8c 92 0c 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 66 90 0f 00 2d f3 df 3e 00 55 48 89 e5 fb f4 <5d> c3 cc cc cc cc cc cc cc cc cc cc cc b8 00 00 00 00 90 90 90 90
RSP: 0018:ffffffff87407da0 EFLAGS: 000002c6
RAX: ffff8881f6e00000 RBX: ffffffff874156c0 RCX: ffffffff85a87bcd
RDX: 0000000000000001 RSI: 0000000000000004 RDI: 0000000000171294
RBP: ffffffff87407da0 R08: ffff8881f6e395eb R09: 1ffff1103edc72bd
R10: dffffc0000000000 R11: ffffed103edc72be R12: 0000000000000000
R13: 1ffffffff0e82ad8 R14: dffffc0000000000 R15: ffffffff87ed4668
 arch_safe_halt arch/x86/include/asm/paravirt.h:112 [inline]
 default_idle+0x17/0x30 arch/x86/kernel/process.c:754
 arch_cpu_idle+0xd/0x20 arch/x86/kernel/process.c:791
 default_idle_call+0x3e/0x80 kernel/sched/idle.c:117
 cpuidle_idle_call kernel/sched/idle.c:193 [inline]
 do_idle+0x2fc/0x570 kernel/sched/idle.c:346
 cpu_startup_entry+0x47/0x60 kernel/sched/idle.c:445
 rest_init+0x10b/0x130 init/main.c:760
 start_kernel+0x462/0x4bb init/main.c:1242
 x86_64_start_reservations+0x2e/0x30 arch/x86/kernel/head64.c:507
 x86_64_start_kernel+0x6a/0x7b arch/x86/kernel/head64.c:488
 common_startup_64+0x13b/0x157
 </TASK>
---[ end trace ]---
aiptek 4-1:0.0: aiptek_irq - usb_submit_urb failed with result -19
----------------
Code disassembly (best guess):
   0:	cc                   	int3
   1:	cc                   	int3
   2:	cc                   	int3
   3:	cc                   	int3
   4:	cc                   	int3
   5:	cc                   	int3
   6:	cc                   	int3
   7:	b8 9e 8c 92 0c       	mov    $0xc928c9e,%eax
   c:	90                   	nop
   d:	90                   	nop
   e:	90                   	nop
   f:	90                   	nop
  10:	90                   	nop
  11:	90                   	nop
  12:	90                   	nop
  13:	90                   	nop
  14:	90                   	nop
  15:	90                   	nop
  16:	90                   	nop
  17:	f3 0f 1e fa          	endbr64
  1b:	66 90                	xchg   %ax,%ax
  1d:	0f 00 2d f3 df 3e 00 	verw   0x3edff3(%rip)        # 0x3ee017
  24:	55                   	push   %rbp
  25:	48 89 e5             	mov    %rsp,%rbp
  28:	fb                   	sti
  29:	f4                   	hlt
* 2a:	5d                   	pop    %rbp <-- trapping instruction
  2b:	c3                   	ret
  2c:	cc                   	int3
  2d:	cc                   	int3
  2e:	cc                   	int3
  2f:	cc                   	int3
  30:	cc                   	int3
  31:	cc                   	int3
  32:	cc                   	int3
  33:	cc                   	int3
  34:	cc                   	int3
  35:	cc                   	int3
  36:	cc                   	int3
  37:	b8 00 00 00 00       	mov    $0x0,%eax
  3c:	90                   	nop
  3d:	90                   	nop
  3e:	90                   	nop
  3f:	90                   	nop