------------[ cut here ]------------
UBSAN: array-index-out-of-bounds in drivers/input/tablet/aiptek.c:741:31
index 261 is out of range for type 'const int[34]'
CPU: 0 UID: 0 PID: 541 Comm: syz.4.51 Not tainted syzkaller #0 f49fde4b0c45121d7a445e7def5dbe315378ec14
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026
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:__sanitizer_cov_trace_pc+0x5/0x70 kernel/kcov.c:210
Code: e8 70 93 54 00 5b 5d e9 c9 32 23 04 cc cc cc cc cc cc cc cc cc b8 3e 3d f5 2b 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 55 <48> 89 e5 48 8b 45 08 65 48 8b 0d bc 29 7d 7e 65 8b 15 bd 29 7d 7e
RSP: 0018:ffffc9000b73fd80 EFLAGS: 00000202
RAX: ffffffff815362ca RBX: dffffc0000000000 RCX: 0000000000000002
RDX: ffff888118c29300 RSI: 0000000000000002 RDI: 00000000ffffffff
RBP: ffffc9000b73fdd0 R08: ffff888118c29307 R09: 1ffff11023185260
R10: dffffc0000000000 R11: ffffed1023185261 R12: 0000000000000002
R13: 1ffff1102318537d R14: ffff888118c29300 R15: ffff888118c29be8
 handle_signal arch/x86/kernel/signal.c:312 [inline]
 arch_do_signal_or_restart+0x42c/0x760 arch/x86/kernel/signal.c:339
 exit_to_user_mode_loop kernel/entry/common.c:111 [inline]
 exit_to_user_mode_prepare include/linux/entry-common.h:328 [inline]
 __syscall_exit_to_user_mode_work kernel/entry/common.c:207 [inline]
 syscall_exit_to_user_mode+0x57/0xb0 kernel/entry/common.c:218
 do_syscall_64+0x63/0xf0 arch/x86/entry/common.c:84
 entry_SYSCALL_64_after_hwframe+0x76/0x7e
RIP: 0033:0x7fe0c91bc3d0
Code: 83 c0 16 83 e0 f7 74 12 50 48 8d 3d aa 1c 07 00 e8 65 65 f9 ff 0f 1f 44 00 00 c3 66 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 <83> ff 21 74 0b c3 66 2e 0f 1f 84 00 00 00 00 00 55 53 48 89 f3 48
RSP: 002b:00007fe0ca01da78 EFLAGS: 00000246 ORIG_RAX: 0000000000000142
RAX: 0000000000000000 RBX: 00007fe0c9415fa0 RCX: 00007fe0c919ce59
RDX: 00007fe0ca01da80 RSI: 00007fe0ca01dbb0 RDI: 0000000000000021
RBP: 00007fe0c9232d6f R08: 0000000000001000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fe0c9416038 R14: 00007fe0c9415fa0 R15: 00007ffcc733b458
 </TASK>
---[ end trace ]---
------------[ cut here ]------------
UBSAN: array-index-out-of-bounds in drivers/input/tablet/aiptek.c:763:30
index 262 is out of range for type 'const int[34]'
CPU: 0 UID: 0 PID: 541 Comm: syz.4.51 Not tainted syzkaller #0 f49fde4b0c45121d7a445e7def5dbe315378ec14
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026
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:__sanitizer_cov_trace_pc+0x5/0x70 kernel/kcov.c:210
Code: e8 70 93 54 00 5b 5d e9 c9 32 23 04 cc cc cc cc cc cc cc cc cc b8 3e 3d f5 2b 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 55 <48> 89 e5 48 8b 45 08 65 48 8b 0d bc 29 7d 7e 65 8b 15 bd 29 7d 7e
RSP: 0018:ffffc9000b73fd80 EFLAGS: 00000202
RAX: ffffffff815362ca RBX: dffffc0000000000 RCX: 0000000000000002
RDX: ffff888118c29300 RSI: 0000000000000002 RDI: 00000000ffffffff
RBP: ffffc9000b73fdd0 R08: ffff888118c29307 R09: 1ffff11023185260
R10: dffffc0000000000 R11: ffffed1023185261 R12: 0000000000000002
R13: 1ffff1102318537d R14: ffff888118c29300 R15: ffff888118c29be8
 handle_signal arch/x86/kernel/signal.c:312 [inline]
 arch_do_signal_or_restart+0x42c/0x760 arch/x86/kernel/signal.c:339
 exit_to_user_mode_loop kernel/entry/common.c:111 [inline]
 exit_to_user_mode_prepare include/linux/entry-common.h:328 [inline]
 __syscall_exit_to_user_mode_work kernel/entry/common.c:207 [inline]
 syscall_exit_to_user_mode+0x57/0xb0 kernel/entry/common.c:218
 do_syscall_64+0x63/0xf0 arch/x86/entry/common.c:84
 entry_SYSCALL_64_after_hwframe+0x76/0x7e
RIP: 0033:0x7fe0c91bc3d0
Code: 83 c0 16 83 e0 f7 74 12 50 48 8d 3d aa 1c 07 00 e8 65 65 f9 ff 0f 1f 44 00 00 c3 66 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 <83> ff 21 74 0b c3 66 2e 0f 1f 84 00 00 00 00 00 55 53 48 89 f3 48
RSP: 002b:00007fe0ca01da78 EFLAGS: 00000246 ORIG_RAX: 0000000000000142
RAX: 0000000000000000 RBX: 00007fe0c9415fa0 RCX: 00007fe0c919ce59
RDX: 00007fe0ca01da80 RSI: 00007fe0ca01dbb0 RDI: 0000000000000021
RBP: 00007fe0c9232d6f R08: 0000000000001000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fe0c9416038 R14: 00007fe0c9415fa0 R15: 00007ffcc733b458
 </TASK>
---[ end trace ]---
aiptek 3-1:0.0: aiptek_irq - usb_submit_urb failed with result -19
----------------
Code disassembly (best guess):
   0:	e8 70 93 54 00       	call   0x549375
   5:	5b                   	pop    %rbx
   6:	5d                   	pop    %rbp
   7:	e9 c9 32 23 04       	jmp    0x42332d5
   c:	cc                   	int3
   d:	cc                   	int3
   e:	cc                   	int3
   f:	cc                   	int3
  10:	cc                   	int3
  11:	cc                   	int3
  12:	cc                   	int3
  13:	cc                   	int3
  14:	cc                   	int3
  15:	b8 3e 3d f5 2b       	mov    $0x2bf53d3e,%eax
  1a:	90                   	nop
  1b:	90                   	nop
  1c:	90                   	nop
  1d:	90                   	nop
  1e:	90                   	nop
  1f:	90                   	nop
  20:	90                   	nop
  21:	90                   	nop
  22:	90                   	nop
  23:	90                   	nop
  24:	90                   	nop
  25:	f3 0f 1e fa          	endbr64
  29:	55                   	push   %rbp
* 2a:	48 89 e5             	mov    %rsp,%rbp <-- trapping instruction
  2d:	48 8b 45 08          	mov    0x8(%rbp),%rax
  31:	65 48 8b 0d bc 29 7d 	mov    %gs:0x7e7d29bc(%rip),%rcx        # 0x7e7d29f5
  38:	7e
  39:	65 8b 15 bd 29 7d 7e 	mov    %gs:0x7e7d29bd(%rip),%edx        # 0x7e7d29fd