================================================================================
UBSAN: array-index-out-of-bounds in drivers/input/tablet/aiptek.c:741:31
index 20872 is out of range for type 'const int[34]'
CPU: 1 PID: 4328 Comm: syz-executor Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026
Call trace:
 dump_backtrace+0x1c4/0x1f0 arch/arm64/kernel/stacktrace.c:158
 show_stack+0x2c/0x3c arch/arm64/kernel/stacktrace.c:165
 __dump_stack+0x30/0x40 lib/dump_stack.c:88
 dump_stack_lvl+0xf4/0x15c lib/dump_stack.c:106
 dump_stack+0x1c/0x5c lib/dump_stack.c:113
 ubsan_epilogue+0x14/0x48 lib/ubsan.c:151
 __ubsan_handle_out_of_bounds+0xd0/0xf8 lib/ubsan.c:282
 aiptek_irq+0x19a0/0x2360 drivers/input/tablet/aiptek.c:741
 __usb_hcd_giveback_urb+0x2ec/0x50c drivers/usb/core/hcd.c:1673
 usb_hcd_giveback_urb+0x100/0x3a4 drivers/usb/core/hcd.c:1756
 dummy_timer+0x7c8/0x2840 drivers/usb/gadget/udc/dummy_hcd.c:2004
 __run_hrtimer kernel/time/hrtimer.c:1751 [inline]
 __hrtimer_run_queues+0x444/0xc58 kernel/time/hrtimer.c:1815
 hrtimer_run_softirq+0x164/0x408 kernel/time/hrtimer.c:1832
 handle_softirqs+0x318/0xc90 kernel/softirq.c:596
 __do_softirq+0x14/0x20 kernel/softirq.c:630
 ____do_softirq+0x14/0x20 arch/arm64/kernel/irq.c:80
 call_on_irq_stack+0x30/0x48 arch/arm64/kernel/entry.S:897
 do_softirq_own_stack+0x20/0x2c arch/arm64/kernel/irq.c:85
 do_softirq+0xf8/0x1a0 kernel/softirq.c:497
 __local_bh_enable_ip+0x250/0x37c kernel/softirq.c:421
 local_bh_enable+0x28/0x34 include/linux/bottom_half.h:33
 put_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:276 [inline]
 fpsimd_update_current_state+0x158/0x378 arch/arm64/kernel/fpsimd.c:1794
 restore_sve_fpsimd_context arch/arm64/kernel/signal.c:359 [inline]
 restore_sigframe arch/arm64/kernel/signal.c:683 [inline]
 __arm64_sys_rt_sigreturn+0x1f0c/0x1f1c arch/arm64/kernel/signal.c:714
 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline]
 invoke_syscall+0x98/0x290 arch/arm64/kernel/syscall.c:52
 el0_svc_common+0x13c/0x258 arch/arm64/kernel/syscall.c:140
 do_el0_svc+0x5c/0x134 arch/arm64/kernel/syscall.c:204
 el0_svc+0x58/0x128 arch/arm64/kernel/entry-common.c:637
 el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:655
 el0t_64_sync+0x18c/0x190 arch/arm64/kernel/entry.S:585
================================================================================
================================================================================
UBSAN: array-index-out-of-bounds in drivers/input/tablet/aiptek.c:763:30
index 20873 is out of range for type 'const int[34]'
CPU: 1 PID: 4328 Comm: syz-executor Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026
Call trace:
 dump_backtrace+0x1c4/0x1f0 arch/arm64/kernel/stacktrace.c:158
 show_stack+0x2c/0x3c arch/arm64/kernel/stacktrace.c:165
 __dump_stack+0x30/0x40 lib/dump_stack.c:88
 dump_stack_lvl+0xf4/0x15c lib/dump_stack.c:106
 dump_stack+0x1c/0x5c lib/dump_stack.c:113
 ubsan_epilogue+0x14/0x48 lib/ubsan.c:151
 __ubsan_handle_out_of_bounds+0xd0/0xf8 lib/ubsan.c:282
 aiptek_irq+0x186c/0x2360 drivers/input/tablet/aiptek.c:763
 __usb_hcd_giveback_urb+0x2ec/0x50c drivers/usb/core/hcd.c:1673
 usb_hcd_giveback_urb+0x100/0x3a4 drivers/usb/core/hcd.c:1756
 dummy_timer+0x7c8/0x2840 drivers/usb/gadget/udc/dummy_hcd.c:2004
 __run_hrtimer kernel/time/hrtimer.c:1751 [inline]
 __hrtimer_run_queues+0x444/0xc58 kernel/time/hrtimer.c:1815
 hrtimer_run_softirq+0x164/0x408 kernel/time/hrtimer.c:1832
 handle_softirqs+0x318/0xc90 kernel/softirq.c:596
 __do_softirq+0x14/0x20 kernel/softirq.c:630
 ____do_softirq+0x14/0x20 arch/arm64/kernel/irq.c:80
 call_on_irq_stack+0x30/0x48 arch/arm64/kernel/entry.S:897
 do_softirq_own_stack+0x20/0x2c arch/arm64/kernel/irq.c:85
 do_softirq+0xf8/0x1a0 kernel/softirq.c:497
 __local_bh_enable_ip+0x250/0x37c kernel/softirq.c:421
 local_bh_enable+0x28/0x34 include/linux/bottom_half.h:33
 put_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:276 [inline]
 fpsimd_update_current_state+0x158/0x378 arch/arm64/kernel/fpsimd.c:1794
 restore_sve_fpsimd_context arch/arm64/kernel/signal.c:359 [inline]
 restore_sigframe arch/arm64/kernel/signal.c:683 [inline]
 __arm64_sys_rt_sigreturn+0x1f0c/0x1f1c arch/arm64/kernel/signal.c:714
 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline]
 invoke_syscall+0x98/0x290 arch/arm64/kernel/syscall.c:52
 el0_svc_common+0x13c/0x258 arch/arm64/kernel/syscall.c:140
 do_el0_svc+0x5c/0x134 arch/arm64/kernel/syscall.c:204
 el0_svc+0x58/0x128 arch/arm64/kernel/entry-common.c:637
 el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:655
 el0t_64_sync+0x18c/0x190 arch/arm64/kernel/entry.S:585
================================================================================
aiptek 1-1:0.0: aiptek_irq - usb_submit_urb failed with result -19