------------[ cut here ]------------
UBSAN: array-index-out-of-bounds in drivers/input/tablet/aiptek.c:741:31
index 37037 is out of range for type 'const int[34]'
CPU: 1 UID: 0 PID: 0 Comm: swapper/1 Not tainted syzkaller #0 790d506eeb1243e613a7e15525cb861d28cb7486
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/16/2026
Call Trace:
__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+0x208d/0x2a00 drivers/input/tablet/aiptek.c:741
__usb_hcd_giveback_urb+0x36e/0x530 drivers/usb/core/hcd.c:1646
usb_hcd_giveback_urb+0x12b/0x400 drivers/usb/core/hcd.c:1730
dummy_timer+0xa3f/0x4900 drivers/usb/gadget/udc/dummy_hcd.c:2003
__run_hrtimer kernel/time/hrtimer.c:1758 [inline]
__hrtimer_run_queues+0x3ab/0x8e0 kernel/time/hrtimer.c:1822
hrtimer_run_softirq+0x159/0x560 kernel/time/hrtimer.c:1839
handle_softirqs+0x1aa/0x5b0 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
asm_sysvec_apic_timer_interrupt+0x1f/0x30 arch/x86/include/asm/idtentry.h:702
RIP: 0010:pv_native_safe_halt+0x13/0x20 arch/x86/kernel/paravirt.c:116
Code: cc cc cc cc cc cc cc b8 e9 d8 f9 82 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 66 90 0f 00 2d 83 d9 3e 00 55 48 89 e5 fb f4 <5d> c3 cc cc cc cc cc cc cc cc cc cc cc b8 00 00 00 00 90 90 90 90
RSP: 0018:ffffc900001a7e00 EFLAGS: 000002c2
RAX: ffff8881f6d00000 RBX: ffff888103668000 RCX: ffffffff85a8853d
RDX: 0000000000000001 RSI: 0000000000000004 RDI: 0000000000047ec4
RBP: ffffc900001a7e00 R08: ffff8881f6d396fb R09: 1ffff1103eda72df
R10: dffffc0000000000 R11: ffffed103eda72e0 R12: 0000000000000000
R13: 1ffff110206cd000 R14: dffffc0000000000 R15: ffffffff886da7e8
arch_safe_halt arch/x86/include/asm/paravirt.h:-1 [inline]
default_idle+0x17/0x30 arch/x86/kernel/process.c:754
arch_cpu_idle+0xd/0x20 arch/x86/kernel/process.c:791
default_idle_call+0x3e/0x80 kernel/sched/idle.c:117
cpuidle_idle_call kernel/sched/idle.c:193 [inline]
do_idle+0x2fc/0x570 kernel/sched/idle.c:346
cpu_startup_entry+0x47/0x60 kernel/sched/idle.c:445
start_secondary+0x12e/0x140 arch/x86/kernel/smpboot.c:314
common_startup_64+0x13b/0x157
---[ end trace ]---
==================================================================
BUG: KASAN: global-out-of-bounds in aiptek_irq+0x20ab/0x2a00 drivers/input/tablet/aiptek.c:741
Read of size 4 at addr ffffffff8672e054 by task swapper/1/0
CPU: 1 UID: 0 PID: 0 Comm: swapper/1 Not tainted syzkaller #0 790d506eeb1243e613a7e15525cb861d28cb7486
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/16/2026
Call Trace:
__dump_stack+0x21/0x30 lib/dump_stack.c:94
dump_stack_lvl+0x140/0x1c0 lib/dump_stack.c:120
print_address_description+0x71/0x210 mm/kasan/report.c:377
print_report+0x4a/0x70 mm/kasan/report.c:481
kasan_report+0x162/0x1a0 mm/kasan/report.c:594
__asan_report_load4_noabort+0x18/0x20 mm/kasan/report_generic.c:380
aiptek_irq+0x20ab/0x2a00 drivers/input/tablet/aiptek.c:741
__usb_hcd_giveback_urb+0x36e/0x530 drivers/usb/core/hcd.c:1646
usb_hcd_giveback_urb+0x12b/0x400 drivers/usb/core/hcd.c:1730
dummy_timer+0xa3f/0x4900 drivers/usb/gadget/udc/dummy_hcd.c:2003
__run_hrtimer kernel/time/hrtimer.c:1758 [inline]
__hrtimer_run_queues+0x3ab/0x8e0 kernel/time/hrtimer.c:1822
hrtimer_run_softirq+0x159/0x560 kernel/time/hrtimer.c:1839
handle_softirqs+0x1aa/0x5b0 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
asm_sysvec_apic_timer_interrupt+0x1f/0x30 arch/x86/include/asm/idtentry.h:702
RIP: 0010:pv_native_safe_halt+0x13/0x20 arch/x86/kernel/paravirt.c:116
Code: cc cc cc cc cc cc cc b8 e9 d8 f9 82 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 66 90 0f 00 2d 83 d9 3e 00 55 48 89 e5 fb f4 <5d> c3 cc cc cc cc cc cc cc cc cc cc cc b8 00 00 00 00 90 90 90 90
RSP: 0018:ffffc900001a7e00 EFLAGS: 000002c2
RAX: ffff8881f6d00000 RBX: ffff888103668000 RCX: ffffffff85a8853d
RDX: 0000000000000001 RSI: 0000000000000004 RDI: 0000000000047ec4
RBP: ffffc900001a7e00 R08: ffff8881f6d396fb R09: 1ffff1103eda72df
R10: dffffc0000000000 R11: ffffed103eda72e0 R12: 0000000000000000
R13: 1ffff110206cd000 R14: dffffc0000000000 R15: ffffffff886da7e8
arch_safe_halt arch/x86/include/asm/paravirt.h:-1 [inline]
default_idle+0x17/0x30 arch/x86/kernel/process.c:754
arch_cpu_idle+0xd/0x20 arch/x86/kernel/process.c:791
default_idle_call+0x3e/0x80 kernel/sched/idle.c:117
cpuidle_idle_call kernel/sched/idle.c:193 [inline]
do_idle+0x2fc/0x570 kernel/sched/idle.c:346
cpu_startup_entry+0x47/0x60 kernel/sched/idle.c:445
start_secondary+0x12e/0x140 arch/x86/kernel/smpboot.c:314
common_startup_64+0x13b/0x157
The buggy address belongs to the variable:
.str.208+0x14/0x20
The buggy address belongs to the physical page:
page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x672e
flags: 0x4000(reserved|zone=0)
raw: 0000000000004000 ffffea000019cb88 ffffea000019cb88 0000000000000000
raw: 0000000000000000 0000000000000000 00000001ffffffff 0000000000000000
page dumped because: kasan: bad access detected
page_owner info is not present (never set?)
Memory state around the buggy address:
ffffffff8672df00: 00 00 f9 f9 f9 f9 f9 f9 07 f9 f9 f9 00 05 f9 f9
ffffffff8672df80: 00 00 03 f9 f9 f9 f9 f9 00 00 00 00 00 00 00 00
>ffffffff8672e000: 00 f9 f9 f9 f9 f9 f9 f9 02 f9 f9 f9 03 f9 f9 f9
^
ffffffff8672e080: 03 f9 f9 f9 00 00 00 00 00 00 f9 f9 f9 f9 f9 f9
ffffffff8672e100: 00 00 f9 f9 05 f9 f9 f9 00 00 f9 f9 00 00 00 03
==================================================================
------------[ cut here ]------------
UBSAN: array-index-out-of-bounds in drivers/input/tablet/aiptek.c:763:30
index 37038 is out of range for type 'const int[34]'
CPU: 1 UID: 0 PID: 0 Comm: swapper/1 Tainted: G B syzkaller #0 790d506eeb1243e613a7e15525cb861d28cb7486
Tainted: [B]=BAD_PAGE
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/16/2026
Call Trace:
__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+0x1f3c/0x2a00 drivers/input/tablet/aiptek.c:763
__usb_hcd_giveback_urb+0x36e/0x530 drivers/usb/core/hcd.c:1646
usb_hcd_giveback_urb+0x12b/0x400 drivers/usb/core/hcd.c:1730
dummy_timer+0xa3f/0x4900 drivers/usb/gadget/udc/dummy_hcd.c:2003
__run_hrtimer kernel/time/hrtimer.c:1758 [inline]
__hrtimer_run_queues+0x3ab/0x8e0 kernel/time/hrtimer.c:1822
hrtimer_run_softirq+0x159/0x560 kernel/time/hrtimer.c:1839
handle_softirqs+0x1aa/0x5b0 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
asm_sysvec_apic_timer_interrupt+0x1f/0x30 arch/x86/include/asm/idtentry.h:702
RIP: 0010:pv_native_safe_halt+0x13/0x20 arch/x86/kernel/paravirt.c:116
Code: cc cc cc cc cc cc cc b8 e9 d8 f9 82 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 66 90 0f 00 2d 83 d9 3e 00 55 48 89 e5 fb f4 <5d> c3 cc cc cc cc cc cc cc cc cc cc cc b8 00 00 00 00 90 90 90 90
RSP: 0018:ffffc900001a7e00 EFLAGS: 000002c2
RAX: ffff8881f6d00000 RBX: ffff888103668000 RCX: ffffffff85a8853d
RDX: 0000000000000001 RSI: 0000000000000004 RDI: 0000000000047ec4
RBP: ffffc900001a7e00 R08: ffff8881f6d396fb R09: 1ffff1103eda72df
R10: dffffc0000000000 R11: ffffed103eda72e0 R12: 0000000000000000
R13: 1ffff110206cd000 R14: dffffc0000000000 R15: ffffffff886da7e8
arch_safe_halt arch/x86/include/asm/paravirt.h:-1 [inline]
default_idle+0x17/0x30 arch/x86/kernel/process.c:754
arch_cpu_idle+0xd/0x20 arch/x86/kernel/process.c:791
default_idle_call+0x3e/0x80 kernel/sched/idle.c:117
cpuidle_idle_call kernel/sched/idle.c:193 [inline]
do_idle+0x2fc/0x570 kernel/sched/idle.c:346
cpu_startup_entry+0x47/0x60 kernel/sched/idle.c:445
start_secondary+0x12e/0x140 arch/x86/kernel/smpboot.c:314
common_startup_64+0x13b/0x157
---[ end trace ]---
------------[ cut here ]------------
UBSAN: array-index-out-of-bounds in drivers/input/tablet/aiptek.c:685:31
index 98 is out of range for type 'const int[34]'
CPU: 1 UID: 0 PID: 65 Comm: kworker/1:2 Tainted: G B syzkaller #0 790d506eeb1243e613a7e15525cb861d28cb7486
Tainted: [B]=BAD_PAGE
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/16/2026
Workqueue: events_power_efficient wg_ratelimiter_gc_entries
Call Trace:
__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+0x2699/0x2a00 drivers/input/tablet/aiptek.c:685
__usb_hcd_giveback_urb+0x36e/0x530 drivers/usb/core/hcd.c:1646
usb_hcd_giveback_urb+0x12b/0x400 drivers/usb/core/hcd.c:1730
dummy_timer+0xa3f/0x4900 drivers/usb/gadget/udc/dummy_hcd.c:2003
__run_hrtimer kernel/time/hrtimer.c:1758 [inline]
__hrtimer_run_queues+0x3ab/0x8e0 kernel/time/hrtimer.c:1822
hrtimer_run_softirq+0x159/0x560 kernel/time/hrtimer.c:1839
handle_softirqs+0x1aa/0x5b0 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
asm_sysvec_apic_timer_interrupt+0x1f/0x30 arch/x86/include/asm/idtentry.h:702
RIP: 0010:queued_spin_lock include/asm-generic/qspinlock.h:109 [inline]
RIP: 0010:do_raw_spin_lock include/linux/spinlock.h:187 [inline]
RIP: 0010:__raw_spin_lock include/linux/spinlock_api_smp.h:134 [inline]
RIP: 0010:_raw_spin_lock+0x6d/0x120 kernel/locking/spinlock.c:154
Code: 08 44 da 18 87 48 c7 44 24 10 d0 a0 aa 85 49 89 e4 49 c1 ec 03 48 b8 f1 f1 f1 f1 f8 f3 f3 f3 4b 89 04 3c 65 ff 05 8b 4d 5a 7a <43> c6 44 3c 04 04 c7 44 24 20 00 00 00 00 be 04 00 00 00 e8 ab 38
RSP: 0018:ffffc90000d5fba0 EFLAGS: 00000282
RAX: f3f3f3f8f1f1f1f1 RBX: ffffffff894662e0 RCX: ffff8881066d93c0
RDX: 0000000000000000 RSI: 0000000000000004 RDI: ffffffff894662e0
RBP: ffffc90000d5fc30 R08: 0000000000000003 R09: 0000000000000004
R10: dffffc0000000000 R11: fffff520001abf78 R12: 1ffff920001abf74
R13: dffffc0000000000 R14: ffffc90000d5fbc0 R15: dffffc0000000000
spin_lock include/linux/spinlock.h:351 [inline]
wg_ratelimiter_gc_entries+0x5b/0x430 drivers/net/wireguard/ratelimiter.c:63
process_one_work kernel/workqueue.c:3273 [inline]
process_scheduled_works+0x7f7/0x1060 kernel/workqueue.c:3354
worker_thread+0xc99/0x13f0 kernel/workqueue.c:3435
kthread+0x2c7/0x360 kernel/kthread.c:389
ret_from_fork+0x67/0xa0 arch/x86/kernel/process.c:153
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
---[ end trace ]---
------------[ cut here ]------------
UBSAN: array-index-out-of-bounds in drivers/input/tablet/aiptek.c:579:9
index 98 is out of range for type 'const int[34]'
CPU: 1 UID: 0 PID: 0 Comm: swapper/1 Tainted: G B syzkaller #0 790d506eeb1243e613a7e15525cb861d28cb7486
Tainted: [B]=BAD_PAGE
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/16/2026
Call Trace:
__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+0x28ab/0x2a00 drivers/input/tablet/aiptek.c:579
__usb_hcd_giveback_urb+0x36e/0x530 drivers/usb/core/hcd.c:1646
usb_hcd_giveback_urb+0x12b/0x400 drivers/usb/core/hcd.c:1730
dummy_timer+0xa3f/0x4900 drivers/usb/gadget/udc/dummy_hcd.c:2003
__run_hrtimer kernel/time/hrtimer.c:1758 [inline]
__hrtimer_run_queues+0x3ab/0x8e0 kernel/time/hrtimer.c:1822
hrtimer_run_softirq+0x159/0x560 kernel/time/hrtimer.c:1839
handle_softirqs+0x1aa/0x5b0 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
asm_sysvec_apic_timer_interrupt+0x1f/0x30 arch/x86/include/asm/idtentry.h:702
RIP: 0010:pv_native_safe_halt+0x13/0x20 arch/x86/kernel/paravirt.c:116
Code: cc cc cc cc cc cc cc b8 e9 d8 f9 82 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 66 90 0f 00 2d 83 d9 3e 00 55 48 89 e5 fb f4 <5d> c3 cc cc cc cc cc cc cc cc cc cc cc b8 00 00 00 00 90 90 90 90
RSP: 0018:ffffc900001a7e00 EFLAGS: 000002c2
RAX: ffff8881f6d00000 RBX: ffff888103668000 RCX: ffffffff85a8853d
RDX: 0000000000000001 RSI: 0000000000000004 RDI: 0000000000047f44
RBP: ffffc900001a7e00 R08: ffff8881f6d396fb R09: 1ffff1103eda72df
R10: dffffc0000000000 R11: ffffed103eda72e0 R12: 0000000000000000
R13: 1ffff110206cd000 R14: dffffc0000000000 R15: ffffffff886da7e8
arch_safe_halt arch/x86/include/asm/paravirt.h:-1 [inline]
default_idle+0x17/0x30 arch/x86/kernel/process.c:754
arch_cpu_idle+0xd/0x20 arch/x86/kernel/process.c:791
default_idle_call+0x3e/0x80 kernel/sched/idle.c:117
cpuidle_idle_call kernel/sched/idle.c:193 [inline]
do_idle+0x2fc/0x570 kernel/sched/idle.c:346
cpu_startup_entry+0x47/0x60 kernel/sched/idle.c:445
start_secondary+0x12e/0x140 arch/x86/kernel/smpboot.c:314
common_startup_64+0x13b/0x157
---[ end trace ]---
aiptek 2-1:0.0: aiptek_irq - usb_submit_urb failed with result -19
----------------
Code disassembly (best guess):
0: cc int3
1: cc int3
2: cc int3
3: cc int3
4: cc int3
5: cc int3
6: cc int3
7: b8 e9 d8 f9 82 mov $0x82f9d8e9,%eax
c: 90 nop
d: 90 nop
e: 90 nop
f: 90 nop
10: 90 nop
11: 90 nop
12: 90 nop
13: 90 nop
14: 90 nop
15: 90 nop
16: 90 nop
17: f3 0f 1e fa endbr64
1b: 66 90 xchg %ax,%ax
1d: 0f 00 2d 83 d9 3e 00 verw 0x3ed983(%rip) # 0x3ed9a7
24: 55 push %rbp
25: 48 89 e5 mov %rsp,%rbp
28: fb sti
29: f4 hlt
* 2a: 5d pop %rbp <-- trapping instruction
2b: c3 ret
2c: cc int3
2d: cc int3
2e: cc int3
2f: cc int3
30: cc int3
31: cc int3
32: cc int3
33: cc int3
34: cc int3
35: cc int3
36: cc int3
37: b8 00 00 00 00 mov $0x0,%eax
3c: 90 nop
3d: 90 nop
3e: 90 nop
3f: 90 nop