================================================================================
UBSAN: array-index-out-of-bounds in drivers/input/tablet/aiptek.c:741:31
index 259 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+0x21/0x30 lib/dump_stack.c:88
dump_stack_lvl+0x110/0x170 lib/dump_stack.c:106
dump_stack+0x15/0x20 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+0x32f/0x4f0 drivers/usb/core/hcd.c:1674
usb_hcd_giveback_urb+0x11d/0x3f0 drivers/usb/core/hcd.c:1751
dummy_timer+0xa34/0x31d0 drivers/usb/gadget/udc/dummy_hcd.c:1998
call_timer_fn+0x38/0x290 kernel/time/timer.c:1459
expire_timers kernel/time/timer.c:1504 [inline]
__run_timers+0x637/0x9a0 kernel/time/timer.c:1775
run_timer_softirq+0x6a/0xf0 kernel/time/timer.c:1788
handle_softirqs+0x250/0x560 kernel/softirq.c:583
__do_softirq kernel/softirq.c:621 [inline]
invoke_softirq kernel/softirq.c:443 [inline]
__irq_exit_rcu+0x52/0xf0 kernel/softirq.c:670
irq_exit_rcu+0x9/0x10 kernel/softirq.c:682
instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1108 [inline]
sysvec_apic_timer_interrupt+0xa9/0xc0 arch/x86/kernel/apic/apic.c:1108
asm_sysvec_apic_timer_interrupt+0x1b/0x20 arch/x86/include/asm/idtentry.h:676
RIP: 0010:default_idle+0xf/0x20 arch/x86/kernel/process.c:730
Code: 8c 4b ff ff ff 4c 89 f7 e8 6e d1 f5 fc e9 3e ff ff ff 00 00 cc cc 00 00 cc cc 00 55 48 89 e5 66 90 0f 00 2d 43 22 52 00 fb f4 <5d> c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 55 48 89 e5 41
RSP: 0018:ffffffff86607d78 EFLAGS: 00000242
RAX: 000000000005f404 RBX: ffffffff8661c400 RCX: 000000000005f404
RDX: 0000000000000001 RSI: ffffffff856380e0 RDI: ffffffff856380a0
RBP: ffffffff86607d78 R08: ffff8881f7038c73 R09: 1ffff1103ee0718e
R10: dffffc0000000000 R11: ffffed103ee0718f R12: 0000000000000000
R13: 1ffffffff0cc3880 R14: dffffc0000000000 R15: dffffc0000000000
arch_cpu_idle+0xa/0x10 arch/x86/kernel/process.c:721
default_idle_call+0x71/0x1d0 kernel/sched/idle.c:112
cpuidle_idle_call kernel/sched/idle.c:202 [inline]
do_idle+0x368/0x620 kernel/sched/idle.c:326
cpu_startup_entry+0x18/0x20 kernel/sched/idle.c:424
rest_init+0x10a/0x130 init/main.c:756
arch_call_rest_init+0xe/0x10 init/main.c:908
start_kernel+0x46d/0x4e0 init/main.c:1156
x86_64_start_reservations+0x2a/0x30 arch/x86/kernel/head64.c:527
x86_64_start_kernel+0x5b/0x60 arch/x86/kernel/head64.c:508
secondary_startup_64_no_verify+0xb1/0xbb
================================================================================
==================================================================
BUG: KASAN: global-out-of-bounds in aiptek_irq+0x2063/0x29b0 drivers/input/tablet/aiptek.c:741
Read of size 4 at addr ffffffff857edcac 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+0x21/0x30 lib/dump_stack.c:88
dump_stack_lvl+0x110/0x170 lib/dump_stack.c:106
print_address_description+0x7f/0x2c0 mm/kasan/report.c:248
__kasan_report mm/kasan/report.c:427 [inline]
kasan_report+0x10f/0x150 mm/kasan/report.c:444
__asan_report_load4_noabort+0x14/0x20 mm/kasan/report_generic.c:308
aiptek_irq+0x2063/0x29b0 drivers/input/tablet/aiptek.c:741
__usb_hcd_giveback_urb+0x32f/0x4f0 drivers/usb/core/hcd.c:1674
usb_hcd_giveback_urb+0x11d/0x3f0 drivers/usb/core/hcd.c:1751
dummy_timer+0xa34/0x31d0 drivers/usb/gadget/udc/dummy_hcd.c:1998
call_timer_fn+0x38/0x290 kernel/time/timer.c:1459
expire_timers kernel/time/timer.c:1504 [inline]
__run_timers+0x637/0x9a0 kernel/time/timer.c:1775
run_timer_softirq+0x6a/0xf0 kernel/time/timer.c:1788
handle_softirqs+0x250/0x560 kernel/softirq.c:583
__do_softirq kernel/softirq.c:621 [inline]
invoke_softirq kernel/softirq.c:443 [inline]
__irq_exit_rcu+0x52/0xf0 kernel/softirq.c:670
irq_exit_rcu+0x9/0x10 kernel/softirq.c:682
instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1108 [inline]
sysvec_apic_timer_interrupt+0xa9/0xc0 arch/x86/kernel/apic/apic.c:1108
asm_sysvec_apic_timer_interrupt+0x1b/0x20 arch/x86/include/asm/idtentry.h:676
RIP: 0010:default_idle+0xf/0x20 arch/x86/kernel/process.c:730
Code: 8c 4b ff ff ff 4c 89 f7 e8 6e d1 f5 fc e9 3e ff ff ff 00 00 cc cc 00 00 cc cc 00 55 48 89 e5 66 90 0f 00 2d 43 22 52 00 fb f4 <5d> c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 55 48 89 e5 41
RSP: 0018:ffffffff86607d78 EFLAGS: 00000242
RAX: 000000000005f404 RBX: ffffffff8661c400 RCX: 000000000005f404
RDX: 0000000000000001 RSI: ffffffff856380e0 RDI: ffffffff856380a0
RBP: ffffffff86607d78 R08: ffff8881f7038c73 R09: 1ffff1103ee0718e
R10: dffffc0000000000 R11: ffffed103ee0718f R12: 0000000000000000
R13: 1ffffffff0cc3880 R14: dffffc0000000000 R15: dffffc0000000000
arch_cpu_idle+0xa/0x10 arch/x86/kernel/process.c:721
default_idle_call+0x71/0x1d0 kernel/sched/idle.c:112
cpuidle_idle_call kernel/sched/idle.c:202 [inline]
do_idle+0x368/0x620 kernel/sched/idle.c:326
cpu_startup_entry+0x18/0x20 kernel/sched/idle.c:424
rest_init+0x10a/0x130 init/main.c:756
arch_call_rest_init+0xe/0x10 init/main.c:908
start_kernel+0x46d/0x4e0 init/main.c:1156
x86_64_start_reservations+0x2a/0x30 arch/x86/kernel/head64.c:527
x86_64_start_kernel+0x5b/0x60 arch/x86/kernel/head64.c:508
secondary_startup_64_no_verify+0xb1/0xbb
The buggy address belongs to the variable:
.str.24+0xc/0x20
Memory state around the buggy address:
ffffffff857edb80: 00 f9 f9 f9 f9 f9 f9 f9 00 02 f9 f9 00 00 00 00
ffffffff857edc00: 00 03 f9 f9 f9 f9 f9 f9 05 f9 f9 f9 07 f9 f9 f9
>ffffffff857edc80: 00 05 f9 f9 04 f9 f9 f9 00 f9 f9 f9 07 f9 f9 f9
^
ffffffff857edd00: 06 f9 f9 f9 07 f9 f9 f9 00 00 00 00 00 00 00 00
ffffffff857edd80: f9 f9 f9 f9 00 00 f9 f9 00 01 f9 f9 00 01 f9 f9
==================================================================
================================================================================
UBSAN: array-index-out-of-bounds in drivers/input/tablet/aiptek.c:763:30
index 260 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+0x21/0x30 lib/dump_stack.c:88
dump_stack_lvl+0x110/0x170 lib/dump_stack.c:106
dump_stack+0x15/0x20 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+0x32f/0x4f0 drivers/usb/core/hcd.c:1674
usb_hcd_giveback_urb+0x11d/0x3f0 drivers/usb/core/hcd.c:1751
dummy_timer+0xa34/0x31d0 drivers/usb/gadget/udc/dummy_hcd.c:1998
call_timer_fn+0x38/0x290 kernel/time/timer.c:1459
expire_timers kernel/time/timer.c:1504 [inline]
__run_timers+0x637/0x9a0 kernel/time/timer.c:1775
run_timer_softirq+0x6a/0xf0 kernel/time/timer.c:1788
handle_softirqs+0x250/0x560 kernel/softirq.c:583
__do_softirq kernel/softirq.c:621 [inline]
invoke_softirq kernel/softirq.c:443 [inline]
__irq_exit_rcu+0x52/0xf0 kernel/softirq.c:670
irq_exit_rcu+0x9/0x10 kernel/softirq.c:682
instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1108 [inline]
sysvec_apic_timer_interrupt+0xa9/0xc0 arch/x86/kernel/apic/apic.c:1108
asm_sysvec_apic_timer_interrupt+0x1b/0x20 arch/x86/include/asm/idtentry.h:676
RIP: 0010:default_idle+0xf/0x20 arch/x86/kernel/process.c:730
Code: 8c 4b ff ff ff 4c 89 f7 e8 6e d1 f5 fc e9 3e ff ff ff 00 00 cc cc 00 00 cc cc 00 55 48 89 e5 66 90 0f 00 2d 43 22 52 00 fb f4 <5d> c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 55 48 89 e5 41
RSP: 0018:ffffffff86607d78 EFLAGS: 00000242
RAX: 000000000005f404 RBX: ffffffff8661c400 RCX: 000000000005f404
RDX: 0000000000000001 RSI: ffffffff856380e0 RDI: ffffffff856380a0
RBP: ffffffff86607d78 R08: ffff8881f7038c73 R09: 1ffff1103ee0718e
R10: dffffc0000000000 R11: ffffed103ee0718f R12: 0000000000000000
R13: 1ffffffff0cc3880 R14: dffffc0000000000 R15: dffffc0000000000
arch_cpu_idle+0xa/0x10 arch/x86/kernel/process.c:721
default_idle_call+0x71/0x1d0 kernel/sched/idle.c:112
cpuidle_idle_call kernel/sched/idle.c:202 [inline]
do_idle+0x368/0x620 kernel/sched/idle.c:326
cpu_startup_entry+0x18/0x20 kernel/sched/idle.c:424
rest_init+0x10a/0x130 init/main.c:756
arch_call_rest_init+0xe/0x10 init/main.c:908
start_kernel+0x46d/0x4e0 init/main.c:1156
x86_64_start_reservations+0x2a/0x30 arch/x86/kernel/head64.c:527
x86_64_start_kernel+0x5b/0x60 arch/x86/kernel/head64.c:508
secondary_startup_64_no_verify+0xb1/0xbb
================================================================================
aiptek 4-1:0.0: aiptek_irq - usb_submit_urb failed with result -19
----------------
Code disassembly (best guess), 4 bytes skipped:
0: ff 4c 89 f7 decl -0x9(%rcx,%rcx,4)
4: e8 6e d1 f5 fc call 0xfcf5d177
9: e9 3e ff ff ff jmp 0xffffff4c
e: 00 00 add %al,(%rax)
10: cc int3
11: cc int3
12: 00 00 add %al,(%rax)
14: cc int3
15: cc int3
16: 00 55 48 add %dl,0x48(%rbp)
19: 89 e5 mov %esp,%ebp
1b: 66 90 xchg %ax,%ax
1d: 0f 00 2d 43 22 52 00 verw 0x522243(%rip) # 0x522267
24: fb sti
25: f4 hlt
* 26: 5d pop %rbp <-- trapping instruction
27: c3 ret
28: 66 2e 0f 1f 84 00 00 cs nopw 0x0(%rax,%rax,1)
2f: 00 00 00
32: 0f 1f 44 00 00 nopl 0x0(%rax,%rax,1)
37: 55 push %rbp
38: 48 89 e5 mov %rsp,%rbp
3b: 41 rex.B