================================================================================
UBSAN: array-index-out-of-bounds in drivers/input/tablet/aiptek.c:741:31
index 1535 is out of range for type 'const int[34]'
CPU: 0 PID: 330 Comm: udevd Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
Call Trace:
 <IRQ>
 __dump_stack+0x21/0x24 lib/dump_stack.c:88
 dump_stack_lvl+0x110/0x170 lib/dump_stack.c:106
 dump_stack+0x15/0x24 lib/dump_stack.c:113
 ubsan_epilogue+0xe/0x40 lib/ubsan.c:151
 __ubsan_handle_out_of_bounds+0xdf/0xf0 lib/ubsan.c:282
 aiptek_irq+0x2045/0x29b0 drivers/input/tablet/aiptek.c:741
 __usb_hcd_giveback_urb+0x360/0x520 drivers/usb/core/hcd.c:1673
 usb_hcd_giveback_urb+0x11f/0x3e0 drivers/usb/core/hcd.c:1756
 dummy_timer+0xa25/0x3270 drivers/usb/gadget/udc/dummy_hcd.c:2004
 __run_hrtimer kernel/time/hrtimer.c:1689 [inline]
 __hrtimer_run_queues+0x398/0x8a0 kernel/time/hrtimer.c:1753
 hrtimer_run_softirq+0x19b/0x260 kernel/time/hrtimer.c:1770
 handle_softirqs+0x1d7/0x600 kernel/softirq.c:642
 __do_softirq kernel/softirq.c:680 [inline]
 invoke_softirq kernel/softirq.c:497 [inline]
 __irq_exit_rcu+0x52/0xf0 kernel/softirq.c:729
 irq_exit_rcu+0x9/0x10 kernel/softirq.c:741
 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1118 [inline]
 sysvec_apic_timer_interrupt+0xa9/0xc0 arch/x86/kernel/apic/apic.c:1118
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x1b/0x20 arch/x86/include/asm/idtentry.h:691
RIP: 0010:__is_kernel_text include/asm-generic/sections.h:208 [inline]
RIP: 0010:is_kernel_text include/linux/kallsyms.h:29 [inline]
RIP: 0010:core_kernel_text kernel/extable.c:68 [inline]
RIP: 0010:kernel_text_address+0x13/0xd0 kernel/extable.c:99
Code: 5d c3 0f 1f 44 00 00 90 90 90 90 90 90 90 90 90 90 90 b8 dc 6f 7b 4a 55 48 89 e5 41 57 41 56 53 48 81 ff 00 00 00 81 0f 93 c0 <48> 81 ff 68 48 40 85 0f 92 c1 41 be 01 00 00 00 84 c8 75 0c 48 89
RSP: 0018:ffffc9000dd0f7e0 EFLAGS: 00000202
RAX: 0000000000000001 RBX: ffffffff81e1b9b9 RCX: 0000000001ba1f01
RDX: ffffc9000dd0fcf0 RSI: 1ffff92001ba1f0a RDI: ffffffff81e1b9b9
RBP: ffffc9000dd0f7f8 R08: ffffc9000dd0f910 R09: ffffc9000dd0f908
R10: 0000000000000006 R11: fffff52001ba1f15 R12: ffff88811398a880
R13: 0000000000000000 R14: dffffc0000000000 R15: 1ffff92001ba1f12
 __kernel_text_address+0xd/0x30 kernel/extable.c:79
 unwind_get_return_address+0x4d/0x90 arch/x86/kernel/unwind_frame.c:19
 arch_stack_walk+0xfc/0x150 arch/x86/kernel/stacktrace.c:26
 stack_trace_save+0xa6/0xf0 kernel/stacktrace.c:122
 kasan_save_stack mm/kasan/common.c:46 [inline]
 kasan_set_track+0x4b/0x70 mm/kasan/common.c:53
 kasan_save_free_info+0x2b/0x40 mm/kasan/generic.c:516
 ____kasan_slab_free+0x132/0x180 mm/kasan/common.c:242
 __kasan_slab_free+0x11/0x20 mm/kasan/common.c:250
 kasan_slab_free include/linux/kasan.h:178 [inline]
 slab_free_hook mm/slub.c:1750 [inline]
 slab_free_freelist_hook+0xc2/0x190 mm/slub.c:1776
 slab_free mm/slub.c:3712 [inline]
 __kmem_cache_free+0xb7/0x1b0 mm/slub.c:3728
 kfree+0x6f/0xf0 mm/slab_common.c:990
 kernfs_fop_release+0x269/0x2f0 fs/kernfs/file.c:828
 __fput+0x1fd/0x8f0 fs/file_table.c:320
 ____fput+0x15/0x20 fs/file_table.c:348
 task_work_run+0x1e1/0x250 kernel/task_work.c:203
 resume_user_mode_work include/linux/resume_user_mode.h:49 [inline]
 exit_to_user_mode_loop+0x9b/0xb0 kernel/entry/common.c:177
 exit_to_user_mode_prepare+0x87/0xd0 kernel/entry/common.c:210
 __syscall_exit_to_user_mode_work kernel/entry/common.c:292 [inline]
 syscall_exit_to_user_mode+0x1a/0x30 kernel/entry/common.c:303
 do_syscall_64+0x58/0xa0 arch/x86/entry/common.c:82
 entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7f4e130a7407
Code: 48 89 fa 4c 89 df e8 38 aa 00 00 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 1a 5b c3 0f 1f 84 00 00 00 00 00 48 8b 44 24 10 0f 05 <5b> c3 0f 1f 80 00 00 00 00 83 e2 39 83 fa 08 75 de e8 23 ff ff ff
RSP: 002b:00007ffc4973c5e0 EFLAGS: 00000202 ORIG_RAX: 0000000000000003
RAX: 0000000000000000 RBX: 00007f4e13798880 RCX: 00007f4e130a7407
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000008
RBP: 0000000000000008 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000202 R12: 00005580a8d68400
R13: 0000000000000005 R14: 00007ffc4973cac0 R15: 000055808610ebcc
 </TASK>
================================================================================
================================================================================
UBSAN: array-index-out-of-bounds in drivers/input/tablet/aiptek.c:763:30
index 1536 is out of range for type 'const int[34]'
CPU: 0 PID: 330 Comm: udevd Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
Call Trace:
 <IRQ>
 __dump_stack+0x21/0x24 lib/dump_stack.c:88
 dump_stack_lvl+0x110/0x170 lib/dump_stack.c:106
 dump_stack+0x15/0x24 lib/dump_stack.c:113
 ubsan_epilogue+0xe/0x40 lib/ubsan.c:151
 __ubsan_handle_out_of_bounds+0xdf/0xf0 lib/ubsan.c:282
 aiptek_irq+0x1f14/0x29b0 drivers/input/tablet/aiptek.c:763
 __usb_hcd_giveback_urb+0x360/0x520 drivers/usb/core/hcd.c:1673
 usb_hcd_giveback_urb+0x11f/0x3e0 drivers/usb/core/hcd.c:1756
 dummy_timer+0xa25/0x3270 drivers/usb/gadget/udc/dummy_hcd.c:2004
 __run_hrtimer kernel/time/hrtimer.c:1689 [inline]
 __hrtimer_run_queues+0x398/0x8a0 kernel/time/hrtimer.c:1753
 hrtimer_run_softirq+0x19b/0x260 kernel/time/hrtimer.c:1770
 handle_softirqs+0x1d7/0x600 kernel/softirq.c:642
 __do_softirq kernel/softirq.c:680 [inline]
 invoke_softirq kernel/softirq.c:497 [inline]
 __irq_exit_rcu+0x52/0xf0 kernel/softirq.c:729
 irq_exit_rcu+0x9/0x10 kernel/softirq.c:741
 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1118 [inline]
 sysvec_apic_timer_interrupt+0xa9/0xc0 arch/x86/kernel/apic/apic.c:1118
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x1b/0x20 arch/x86/include/asm/idtentry.h:691
RIP: 0010:__is_kernel_text include/asm-generic/sections.h:208 [inline]
RIP: 0010:is_kernel_text include/linux/kallsyms.h:29 [inline]
RIP: 0010:core_kernel_text kernel/extable.c:68 [inline]
RIP: 0010:kernel_text_address+0x13/0xd0 kernel/extable.c:99
Code: 5d c3 0f 1f 44 00 00 90 90 90 90 90 90 90 90 90 90 90 b8 dc 6f 7b 4a 55 48 89 e5 41 57 41 56 53 48 81 ff 00 00 00 81 0f 93 c0 <48> 81 ff 68 48 40 85 0f 92 c1 41 be 01 00 00 00 84 c8 75 0c 48 89
RSP: 0018:ffffc9000dd0f7e0 EFLAGS: 00000202
RAX: 0000000000000001 RBX: ffffffff81e1b9b9 RCX: 0000000001ba1f01
RDX: ffffc9000dd0fcf0 RSI: 1ffff92001ba1f0a RDI: ffffffff81e1b9b9
RBP: ffffc9000dd0f7f8 R08: ffffc9000dd0f910 R09: ffffc9000dd0f908
R10: 0000000000000006 R11: fffff52001ba1f15 R12: ffff88811398a880
R13: 0000000000000000 R14: dffffc0000000000 R15: 1ffff92001ba1f12
 __kernel_text_address+0xd/0x30 kernel/extable.c:79
 unwind_get_return_address+0x4d/0x90 arch/x86/kernel/unwind_frame.c:19
 arch_stack_walk+0xfc/0x150 arch/x86/kernel/stacktrace.c:26
 stack_trace_save+0xa6/0xf0 kernel/stacktrace.c:122
 kasan_save_stack mm/kasan/common.c:46 [inline]
 kasan_set_track+0x4b/0x70 mm/kasan/common.c:53
 kasan_save_free_info+0x2b/0x40 mm/kasan/generic.c:516
 ____kasan_slab_free+0x132/0x180 mm/kasan/common.c:242
 __kasan_slab_free+0x11/0x20 mm/kasan/common.c:250
 kasan_slab_free include/linux/kasan.h:178 [inline]
 slab_free_hook mm/slub.c:1750 [inline]
 slab_free_freelist_hook+0xc2/0x190 mm/slub.c:1776
 slab_free mm/slub.c:3712 [inline]
 __kmem_cache_free+0xb7/0x1b0 mm/slub.c:3728
 kfree+0x6f/0xf0 mm/slab_common.c:990
 kernfs_fop_release+0x269/0x2f0 fs/kernfs/file.c:828
 __fput+0x1fd/0x8f0 fs/file_table.c:320
 ____fput+0x15/0x20 fs/file_table.c:348
 task_work_run+0x1e1/0x250 kernel/task_work.c:203
 resume_user_mode_work include/linux/resume_user_mode.h:49 [inline]
 exit_to_user_mode_loop+0x9b/0xb0 kernel/entry/common.c:177
 exit_to_user_mode_prepare+0x87/0xd0 kernel/entry/common.c:210
 __syscall_exit_to_user_mode_work kernel/entry/common.c:292 [inline]
 syscall_exit_to_user_mode+0x1a/0x30 kernel/entry/common.c:303
 do_syscall_64+0x58/0xa0 arch/x86/entry/common.c:82
 entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7f4e130a7407
Code: 48 89 fa 4c 89 df e8 38 aa 00 00 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 1a 5b c3 0f 1f 84 00 00 00 00 00 48 8b 44 24 10 0f 05 <5b> c3 0f 1f 80 00 00 00 00 83 e2 39 83 fa 08 75 de e8 23 ff ff ff
RSP: 002b:00007ffc4973c5e0 EFLAGS: 00000202 ORIG_RAX: 0000000000000003
RAX: 0000000000000000 RBX: 00007f4e13798880 RCX: 00007f4e130a7407
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000008
RBP: 0000000000000008 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000202 R12: 00005580a8d68400
R13: 0000000000000005 R14: 00007ffc4973cac0 R15: 000055808610ebcc
 </TASK>
================================================================================
aiptek 5-1:0.0: aiptek_irq - usb_submit_urb failed with result -19
----------------
Code disassembly (best guess):
   0:	5d                   	pop    %rbp
   1:	c3                   	ret
   2:	0f 1f 44 00 00       	nopl   0x0(%rax,%rax,1)
   7:	90                   	nop
   8:	90                   	nop
   9:	90                   	nop
   a:	90                   	nop
   b:	90                   	nop
   c:	90                   	nop
   d:	90                   	nop
   e:	90                   	nop
   f:	90                   	nop
  10:	90                   	nop
  11:	90                   	nop
  12:	b8 dc 6f 7b 4a       	mov    $0x4a7b6fdc,%eax
  17:	55                   	push   %rbp
  18:	48 89 e5             	mov    %rsp,%rbp
  1b:	41 57                	push   %r15
  1d:	41 56                	push   %r14
  1f:	53                   	push   %rbx
  20:	48 81 ff 00 00 00 81 	cmp    $0xffffffff81000000,%rdi
  27:	0f 93 c0             	setae  %al
* 2a:	48 81 ff 68 48 40 85 	cmp    $0xffffffff85404868,%rdi <-- trapping instruction
  31:	0f 92 c1             	setb   %cl
  34:	41 be 01 00 00 00    	mov    $0x1,%r14d
  3a:	84 c8                	test   %cl,%al
  3c:	75 0c                	jne    0x4a
  3e:	48                   	rex.W
  3f:	89                   	.byte 0x89