================================================================================
UBSAN: array-index-out-of-bounds in drivers/input/tablet/aiptek.c:741:31
index 547 is out of range for type 'const int[34]'
CPU: 0 PID: 12 Comm: ksoftirqd/0 Tainted: G        W         syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026
Call Trace:
 __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+0x1fdf/0x2860 drivers/input/tablet/aiptek.c:741
 __usb_hcd_giveback_urb+0x333/0x4f0 drivers/usb/core/hcd.c:1674
 usb_hcd_giveback_urb+0x119/0x410 drivers/usb/core/hcd.c:1748
 dummy_timer+0x8be/0x30e0 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+0x650/0x9e0 kernel/time/timer.c:1789
 run_timer_softirq+0x6a/0xf0 kernel/time/timer.c:1802
 __do_softirq+0x255/0x563 kernel/softirq.c:309
 run_ksoftirqd+0x23/0x30 kernel/softirq.c:670
 smpboot_thread_fn+0x474/0x850 kernel/smpboot.c:164
 kthread+0x346/0x3d0 kernel/kthread.c:313
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:298
================================================================================
==================================================================
BUG: KASAN: global-out-of-bounds in aiptek_irq+0x1ffd/0x2860 drivers/input/tablet/aiptek.c:741
Read of size 4 at addr ffffffff855b380c by task ksoftirqd/0/12

CPU: 0 PID: 12 Comm: ksoftirqd/0 Tainted: G        W         syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026
Call Trace:
 __dump_stack+0x21/0x24 lib/dump_stack.c:77
 dump_stack_lvl+0x1a7/0x208 lib/dump_stack.c:118
 print_address_description+0x7f/0x2c0 mm/kasan/report.c:248
 __kasan_report mm/kasan/report.c:435 [inline]
 kasan_report+0xe2/0x130 mm/kasan/report.c:452
 __asan_report_load4_noabort+0x14/0x20 mm/kasan/report_generic.c:308
 aiptek_irq+0x1ffd/0x2860 drivers/input/tablet/aiptek.c:741
 __usb_hcd_giveback_urb+0x333/0x4f0 drivers/usb/core/hcd.c:1674
 usb_hcd_giveback_urb+0x119/0x410 drivers/usb/core/hcd.c:1748
 dummy_timer+0x8be/0x30e0 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+0x650/0x9e0 kernel/time/timer.c:1789
 run_timer_softirq+0x6a/0xf0 kernel/time/timer.c:1802
 __do_softirq+0x255/0x563 kernel/softirq.c:309
 run_ksoftirqd+0x23/0x30 kernel/softirq.c:670
 smpboot_thread_fn+0x474/0x850 kernel/smpboot.c:164
 kthread+0x346/0x3d0 kernel/kthread.c:313
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:298

The buggy address belongs to the variable:
 .str.57+0xc/0x20

Memory state around the buggy address:
 ffffffff855b3700: 04 f9 f9 f9 00 f9 f9 f9 06 f9 f9 f9 07 f9 f9 f9
 ffffffff855b3780: 06 f9 f9 f9 00 04 f9 f9 05 f9 f9 f9 00 03 f9 f9
>ffffffff855b3800: 00 03 f9 f9 00 00 00 00 03 f9 f9 f9 f9 f9 f9 f9
                      ^
 ffffffff855b3880: 00 00 00 00 03 f9 f9 f9 f9 f9 f9 f9 00 00 00 00
 ffffffff855b3900: 01 f9 f9 f9 f9 f9 f9 f9 00 00 00 00 f9 f9 f9 f9
==================================================================
================================================================================
UBSAN: array-index-out-of-bounds in drivers/input/tablet/aiptek.c:763:30
index 548 is out of range for type 'const int[34]'
CPU: 0 PID: 12 Comm: ksoftirqd/0 Tainted: G    B   W         syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026
Call Trace:
 __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+0x1ebf/0x2860 drivers/input/tablet/aiptek.c:763
 __usb_hcd_giveback_urb+0x333/0x4f0 drivers/usb/core/hcd.c:1674
 usb_hcd_giveback_urb+0x119/0x410 drivers/usb/core/hcd.c:1748
 dummy_timer+0x8be/0x30e0 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+0x650/0x9e0 kernel/time/timer.c:1789
 run_timer_softirq+0x6a/0xf0 kernel/time/timer.c:1802
 __do_softirq+0x255/0x563 kernel/softirq.c:309
 run_ksoftirqd+0x23/0x30 kernel/softirq.c:670
 smpboot_thread_fn+0x474/0x850 kernel/smpboot.c:164
 kthread+0x346/0x3d0 kernel/kthread.c:313
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:298
================================================================================