================================================================================
UBSAN: array-index-out-of-bounds in drivers/input/tablet/aiptek.c:741:31
index 1319 is out of range for type 'const int[34]'
CPU: 0 PID: 0 Comm: swapper/0 Not tainted 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: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:default_idle+0xf/0x20 arch/x86/kernel/process.c:742
Code: cc 00 00 cc cc 00 00 cc cc 00 00 90 90 90 90 90 90 90 90 90 90 90 b8 0c 67 40 a5 55 48 89 e5 66 90 0f 00 2d 63 7b 65 00 fb f4 <5d> c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 90 90 90 90 90
RSP: 0018:ffffffff87007d58 EFLAGS: 00000257
RAX: ffff8881f6e00000 RBX: ffffffff8701c680 RCX: 2afc3d365fbd8400
RDX: 0000000000000001 RSI: ffffffff85ca61c0 RDI: ffffffff85ca6180
RBP: ffffffff87007d58 R08: ffff8881f6e348b3 R09: 1ffff1103edc6916
R10: 0000000000000000 R11: ffffffff8500b370 R12: dffffc0000000000
R13: 0000000000000000 R14: ffffffff8701c680 R15: dffffc0000000000
arch_cpu_idle+0x1c/0x20 arch/x86/kernel/process.c:733
default_idle_call+0x71/0x1d0 kernel/sched/idle.c:109
cpuidle_idle_call kernel/sched/idle.c:199 [inline]
do_idle+0x354/0x640 kernel/sched/idle.c:323
cpu_startup_entry+0x43/0x60 kernel/sched/idle.c:422
rest_init+0x10a/0x130 init/main.c:744
arch_call_rest_init+0xe/0x10 init/main.c:904
start_kernel+0x483/0x4f1 init/main.c:1275
x86_64_start_reservations+0x2a/0x2c arch/x86/kernel/head64.c:555
x86_64_start_kernel+0x7c/0x81 arch/x86/kernel/head64.c:536
secondary_startup_64_no_verify+0xce/0xdb
================================================================================
==================================================================
BUG: KASAN: global-out-of-bounds in aiptek_irq+0x2063/0x29b0 drivers/input/tablet/aiptek.c:741
Read of size 4 at addr ffffffff85e6619c by task swapper/0/0
CPU: 0 PID: 0 Comm: swapper/0 Not tainted 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:88
dump_stack_lvl+0x110/0x170 lib/dump_stack.c:106
print_address_description+0x71/0x200 mm/kasan/report.c:316
print_report+0x4a/0x60 mm/kasan/report.c:420
kasan_report+0x122/0x150 mm/kasan/report.c:524
__asan_report_load4_noabort+0x14/0x20 mm/kasan/report_generic.c:350
aiptek_irq+0x2063/0x29b0 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:default_idle+0xf/0x20 arch/x86/kernel/process.c:742
Code: cc 00 00 cc cc 00 00 cc cc 00 00 90 90 90 90 90 90 90 90 90 90 90 b8 0c 67 40 a5 55 48 89 e5 66 90 0f 00 2d 63 7b 65 00 fb f4 <5d> c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 90 90 90 90 90
RSP: 0018:ffffffff87007d58 EFLAGS: 00000257
RAX: ffff8881f6e00000 RBX: ffffffff8701c680 RCX: 2afc3d365fbd8400
RDX: 0000000000000001 RSI: ffffffff85ca61c0 RDI: ffffffff85ca6180
RBP: ffffffff87007d58 R08: ffff8881f6e348b3 R09: 1ffff1103edc6916
R10: 0000000000000000 R11: ffffffff8500b370 R12: dffffc0000000000
R13: 0000000000000000 R14: ffffffff8701c680 R15: dffffc0000000000
arch_cpu_idle+0x1c/0x20 arch/x86/kernel/process.c:733
default_idle_call+0x71/0x1d0 kernel/sched/idle.c:109
cpuidle_idle_call kernel/sched/idle.c:199 [inline]
do_idle+0x354/0x640 kernel/sched/idle.c:323
cpu_startup_entry+0x43/0x60 kernel/sched/idle.c:422
rest_init+0x10a/0x130 init/main.c:744
arch_call_rest_init+0xe/0x10 init/main.c:904
start_kernel+0x483/0x4f1 init/main.c:1275
x86_64_start_reservations+0x2a/0x2c arch/x86/kernel/head64.c:555
x86_64_start_kernel+0x7c/0x81 arch/x86/kernel/head64.c:536
secondary_startup_64_no_verify+0xce/0xdb
The buggy address belongs to the variable:
.str.17+0x5c/0x60
The buggy address belongs to the physical page:
page:ffffea0000179980 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x5e66
flags: 0x1000(reserved|zone=0)
raw: 0000000000001000 ffffea0000179988 ffffea0000179988 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:
ffffffff85e66080: 00 00 00 00 07 f9 f9 f9 f9 f9 f9 f9 00 00 00 00
ffffffff85e66100: 05 f9 f9 f9 f9 f9 f9 f9 00 00 00 00 00 02 f9 f9
>ffffffff85e66180: f9 f9 f9 f9 00 00 00 00 00 00 00 00 f9 f9 f9 f9
^
ffffffff85e66200: 00 00 00 00 00 00 00 00 06 f9 f9 f9 00 f9 f9 f9
ffffffff85e66280: 00 07 f9 f9 00 02 f9 f9 00 00 00 00 00 03 f9 f9
==================================================================
================================================================================
UBSAN: array-index-out-of-bounds in drivers/input/tablet/aiptek.c:763:30
index 1320 is out of range for type 'const int[34]'
CPU: 0 PID: 0 Comm: swapper/0 Tainted: G B 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: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:default_idle+0xf/0x20 arch/x86/kernel/process.c:742
Code: cc 00 00 cc cc 00 00 cc cc 00 00 90 90 90 90 90 90 90 90 90 90 90 b8 0c 67 40 a5 55 48 89 e5 66 90 0f 00 2d 63 7b 65 00 fb f4 <5d> c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 90 90 90 90 90
RSP: 0018:ffffffff87007d58 EFLAGS: 00000257
RAX: ffff8881f6e00000 RBX: ffffffff8701c680 RCX: 2afc3d365fbd8400
RDX: 0000000000000001 RSI: ffffffff85ca61c0 RDI: ffffffff85ca6180
RBP: ffffffff87007d58 R08: ffff8881f6e348b3 R09: 1ffff1103edc6916
R10: 0000000000000000 R11: ffffffff8500b370 R12: dffffc0000000000
R13: 0000000000000000 R14: ffffffff8701c680 R15: dffffc0000000000
arch_cpu_idle+0x1c/0x20 arch/x86/kernel/process.c:733
default_idle_call+0x71/0x1d0 kernel/sched/idle.c:109
cpuidle_idle_call kernel/sched/idle.c:199 [inline]
do_idle+0x354/0x640 kernel/sched/idle.c:323
cpu_startup_entry+0x43/0x60 kernel/sched/idle.c:422
rest_init+0x10a/0x130 init/main.c:744
arch_call_rest_init+0xe/0x10 init/main.c:904
start_kernel+0x483/0x4f1 init/main.c:1275
x86_64_start_reservations+0x2a/0x2c arch/x86/kernel/head64.c:555
x86_64_start_kernel+0x7c/0x81 arch/x86/kernel/head64.c:536
secondary_startup_64_no_verify+0xce/0xdb
================================================================================
aiptek 2-1:0.0: aiptek_irq - usb_submit_urb failed with result -19
================================================================================
UBSAN: array-index-out-of-bounds in drivers/input/tablet/aiptek.c:724:31
index 63 is out of range for type 'const int[34]'
CPU: 0 PID: 103 Comm: udevd Tainted: G B 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: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+0x210e/0x29b0 drivers/input/tablet/aiptek.c:724
__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:ep_busy_loop fs/eventpoll.c:412 [inline]
RIP: 0010:ep_poll fs/eventpoll.c:1844 [inline]
RIP: 0010:do_epoll_wait+0xfef/0x1710 fs/eventpoll.c:2309
Code: 06 00 00 e8 13 a8 9f ff 31 ff 8b 5c 24 1c 89 de e8 26 ac 9f ff 85 db 0f 85 2a 06 00 00 48 8b 84 24 f0 00 00 00 42 0f b6 04 28 <84> c0 0f 85 6c 05 00 00 48 8b 44 24 58 8b 18 bf 08 00 00 00 89 de
RSP: 0018:ffffc90000a27bc0 EFLAGS: 00000246
RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000
RDX: ffff888110716540 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc90000a27e10 R08: ffffc90000a27b47 R09: 1ffff92000144f68
R10: dffffc0000000000 R11: fffff52000144f69 R12: ffffc90000a27d00
R13: dffffc0000000000 R14: 0000000000000000 R15: 1ffff92000144f9c
__do_sys_epoll_wait fs/eventpoll.c:2321 [inline]
__se_sys_epoll_wait fs/eventpoll.c:2316 [inline]
__x64_sys_epoll_wait+0x1d4/0x220 fs/eventpoll.c:2316
x64_sys_call+0x82b/0x9a0 arch/x86/include/generated/asm/syscalls_64.h:233
do_syscall_x64 arch/x86/entry/common.c:46 [inline]
do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:76
entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7ff3a94a7407
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:00007ffea0703ba0 EFLAGS: 00000202 ORIG_RAX: 00000000000000e8
RAX: ffffffffffffffda RBX: 00007ff3a9b91880 RCX: 00007ff3a94a7407
RDX: 0000000000000008 RSI: 00007ffea0703d00 RDI: 000000000000000b
RBP: 000055f52ba29d50 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000bb8 R11: 0000000000000202 R12: 0000000000000000
R13: 000055f4fb2bc100 R14: 0000000000000000 R15: 0000000000000000
================================================================================
aiptek 3-1:0.0: aiptek_irq - usb_submit_urb failed with result -19
----------------
Code disassembly (best guess):
0: cc int3
1: 00 00 add %al,(%rax)
3: cc int3
4: cc int3
5: 00 00 add %al,(%rax)
7: cc int3
8: cc int3
9: 00 00 add %al,(%rax)
b: 90 nop
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: b8 0c 67 40 a5 mov $0xa540670c,%eax
1b: 55 push %rbp
1c: 48 89 e5 mov %rsp,%rbp
1f: 66 90 xchg %ax,%ax
21: 0f 00 2d 63 7b 65 00 verw 0x657b63(%rip) # 0x657b8b
28: fb sti
29: f4 hlt
* 2a: 5d pop %rbp <-- trapping instruction
2b: c3 ret
2c: 66 2e 0f 1f 84 00 00 cs nopw 0x0(%rax,%rax,1)
33: 00 00 00
36: 0f 1f 44 00 00 nopl 0x0(%rax,%rax,1)
3b: 90 nop
3c: 90 nop
3d: 90 nop
3e: 90 nop
3f: 90 nop