================================================================================
UBSAN: array-index-out-of-bounds in drivers/input/tablet/aiptek.c:741:31
index 20507 is out of range for type 'const int[34]'
CPU: 0 PID: 3731 Comm: udevd Tainted: G W syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
Call Trace:
__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:1675
usb_hcd_giveback_urb+0x11f/0x3e0 drivers/usb/core/hcd.c:1758
dummy_timer+0xa25/0x3270 drivers/usb/gadget/udc/dummy_hcd.c:2004
__run_hrtimer kernel/time/hrtimer.c:1685 [inline]
__hrtimer_run_queues+0x398/0x890 kernel/time/hrtimer.c:1749
hrtimer_run_softirq+0x19b/0x260 kernel/time/hrtimer.c:1766
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
asm_sysvec_apic_timer_interrupt+0x1b/0x20 arch/x86/include/asm/idtentry.h:691
RIP: 0010:rb_update_event kernel/trace/ring_buffer.c:-1 [inline]
RIP: 0010:__rb_reserve_next+0x719/0xcb0 kernel/trace/ring_buffer.c:3677
Code: ff 41 ff cd 41 c1 ed 02 41 09 dd 44 89 eb 4c 8b a5 70 ff ff ff 4c 89 f8 48 c1 e8 03 48 b9 00 00 00 00 00 fc ff df 0f b6 04 08 <84> c0 0f 85 a7 04 00 00 41 89 1f 48 8b 85 40 ff ff ff 48 ff 40 20
RSP: 0018:ffffc90000dafb88 EFLAGS: 00000a03
RAX: 0000000000000000 RBX: 00000000000fda70 RCX: dffffc0000000000
RDX: 0000000000000000 RSI: 0000000000000040 RDI: 0000000000000070
RBP: ffffc90000dafc60 R08: ffff8881000554a7 R09: 1ffff1102000aa94
R10: dffffc0000000000 R11: ffffed102000aa95 R12: ffff888100055400
R13: 00000000000fda70 R14: ffffc90000dafcf8 R15: ffff88811fe6fe24
rb_reserve_next_event kernel/trace/ring_buffer.c:3755 [inline]
ring_buffer_lock_reserve+0xb6a/0xf60 kernel/trace/ring_buffer.c:3814
__trace_buffer_lock_reserve kernel/trace/trace.c:957 [inline]
trace_event_buffer_lock_reserve+0xf8/0x740 kernel/trace/trace.c:2842
trace_event_buffer_reserve+0x2a8/0x3d0 kernel/trace/trace_events.c:647
do_trace_event_raw_event_sys_enter include/trace/events/syscalls.h:18 [inline]
trace_event_raw_event_sys_enter+0x66/0x120 include/trace/events/syscalls.h:18
trace_sys_enter+0x3d/0x50 include/trace/events/syscalls.h:18
syscall_trace_enter+0xf3/0x150 kernel/entry/common.c:81
__syscall_enter_from_user_work kernel/entry/common.c:100 [inline]
syscall_enter_from_user_mode+0x1f/0x30 kernel/entry/common.c:118
do_syscall_64+0x24/0xa0 arch/x86/entry/common.c:72
entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7ffb456a7407
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:00007ffc1e887700 EFLAGS: 00000202 ORIG_RAX: 0000000000000003
RAX: ffffffffffffffda RBX: 00007ffb45d90880 RCX: 00007ffb456a7407
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000008
RBP: 0000000000000008 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000202 R12: 000055aca9175440
R13: 0000000000000003 R14: 00007ffc1e887be0 R15: 000055ac6d34abcc
================================================================================
================================================================================
UBSAN: array-index-out-of-bounds in drivers/input/tablet/aiptek.c:763:30
index 20508 is out of range for type 'const int[34]'
CPU: 0 PID: 3731 Comm: udevd Tainted: G W syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
Call Trace:
__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:1675
usb_hcd_giveback_urb+0x11f/0x3e0 drivers/usb/core/hcd.c:1758
dummy_timer+0xa25/0x3270 drivers/usb/gadget/udc/dummy_hcd.c:2004
__run_hrtimer kernel/time/hrtimer.c:1685 [inline]
__hrtimer_run_queues+0x398/0x890 kernel/time/hrtimer.c:1749
hrtimer_run_softirq+0x19b/0x260 kernel/time/hrtimer.c:1766
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
asm_sysvec_apic_timer_interrupt+0x1b/0x20 arch/x86/include/asm/idtentry.h:691
RIP: 0010:rb_update_event kernel/trace/ring_buffer.c:-1 [inline]
RIP: 0010:__rb_reserve_next+0x719/0xcb0 kernel/trace/ring_buffer.c:3677
Code: ff 41 ff cd 41 c1 ed 02 41 09 dd 44 89 eb 4c 8b a5 70 ff ff ff 4c 89 f8 48 c1 e8 03 48 b9 00 00 00 00 00 fc ff df 0f b6 04 08 <84> c0 0f 85 a7 04 00 00 41 89 1f 48 8b 85 40 ff ff ff 48 ff 40 20
RSP: 0018:ffffc90000dafb88 EFLAGS: 00000a03
RAX: 0000000000000000 RBX: 00000000000fda70 RCX: dffffc0000000000
RDX: 0000000000000000 RSI: 0000000000000040 RDI: 0000000000000070
RBP: ffffc90000dafc60 R08: ffff8881000554a7 R09: 1ffff1102000aa94
R10: dffffc0000000000 R11: ffffed102000aa95 R12: ffff888100055400
R13: 00000000000fda70 R14: ffffc90000dafcf8 R15: ffff88811fe6fe24
rb_reserve_next_event kernel/trace/ring_buffer.c:3755 [inline]
ring_buffer_lock_reserve+0xb6a/0xf60 kernel/trace/ring_buffer.c:3814
__trace_buffer_lock_reserve kernel/trace/trace.c:957 [inline]
trace_event_buffer_lock_reserve+0xf8/0x740 kernel/trace/trace.c:2842
trace_event_buffer_reserve+0x2a8/0x3d0 kernel/trace/trace_events.c:647
do_trace_event_raw_event_sys_enter include/trace/events/syscalls.h:18 [inline]
trace_event_raw_event_sys_enter+0x66/0x120 include/trace/events/syscalls.h:18
trace_sys_enter+0x3d/0x50 include/trace/events/syscalls.h:18
syscall_trace_enter+0xf3/0x150 kernel/entry/common.c:81
__syscall_enter_from_user_work kernel/entry/common.c:100 [inline]
syscall_enter_from_user_mode+0x1f/0x30 kernel/entry/common.c:118
do_syscall_64+0x24/0xa0 arch/x86/entry/common.c:72
entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7ffb456a7407
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:00007ffc1e887700 EFLAGS: 00000202 ORIG_RAX: 0000000000000003
RAX: ffffffffffffffda RBX: 00007ffb45d90880 RCX: 00007ffb456a7407
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000008
RBP: 0000000000000008 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000202 R12: 000055aca9175440
R13: 0000000000000003 R14: 00007ffc1e887be0 R15: 000055ac6d34abcc
================================================================================
aiptek 4-1:0.0: aiptek_irq - usb_submit_urb failed with result -19
----------------
Code disassembly (best guess):
0: ff 41 ff incl -0x1(%rcx)
3: cd 41 int $0x41
5: c1 ed 02 shr $0x2,%ebp
8: 41 09 dd or %ebx,%r13d
b: 44 89 eb mov %r13d,%ebx
e: 4c 8b a5 70 ff ff ff mov -0x90(%rbp),%r12
15: 4c 89 f8 mov %r15,%rax
18: 48 c1 e8 03 shr $0x3,%rax
1c: 48 b9 00 00 00 00 00 movabs $0xdffffc0000000000,%rcx
23: fc ff df
26: 0f b6 04 08 movzbl (%rax,%rcx,1),%eax
* 2a: 84 c0 test %al,%al <-- trapping instruction
2c: 0f 85 a7 04 00 00 jne 0x4d9
32: 41 89 1f mov %ebx,(%r15)
35: 48 8b 85 40 ff ff ff mov -0xc0(%rbp),%rax
3c: 48 ff 40 20 incq 0x20(%rax)