------------[ cut here ]------------
UBSAN: array-index-out-of-bounds in drivers/input/tablet/aiptek.c:741:31
index 53017 is out of range for type 'const int[34]'
CPU: 1 UID: 0 PID: 1774 Comm: syz.2.390 Not tainted syzkaller #0 200dea8a17c83f35b0a1e1238c384757fc17b797
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
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:1648
usb_hcd_giveback_urb+0x12b/0x400 drivers/usb/core/hcd.c:1732
dummy_timer+0xa3f/0x4900 drivers/usb/gadget/udc/dummy_hcd.c:2003
__run_hrtimer kernel/time/hrtimer.c:1757 [inline]
__hrtimer_run_queues+0x3ae/0x8e0 kernel/time/hrtimer.c:1821
hrtimer_run_softirq+0x159/0x560 kernel/time/hrtimer.c:1838
handle_softirqs+0x1aa/0x620 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:__sanitizer_cov_trace_const_cmp8+0x0/0x90 kernel/kcov.c:320
Code: 00 48 89 7c 11 10 48 89 74 11 18 48 89 44 11 20 5d e9 54 98 1e 04 cc 0f 1f 00 b8 8c 63 8d 19 90 90 90 90 90 90 90 90 90 90 90 0f 1e fa 55 48 89 e5 48 8b 45 08 65 48 8b 0d 0c 75 7d 7e 65 8b
RSP: 0018:ffffc90010f774f8 EFLAGS: 00000246
RAX: dffffc0000000000 RBX: 800000011d090025 RCX: ffff888120743900
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc90010f777b0 R08: ffffea0004742407 R09: 1ffffd40008e8480
R10: dffffc0000000000 R11: fffff940008e8481 R12: 000000110c2de000
R13: ffffea0004742418 R14: ffff888110f3ed38 R15: 1ffffd40008e8483
unmap_single_vma mm/memory.c:1962 [inline]
unmap_vmas+0x2dd/0x400 mm/memory.c:2006
exit_mmap+0x28a/0xc20 mm/mmap.c:1969
__mmput+0x92/0x330 kernel/fork.c:1370
mmput+0x55/0x170 kernel/fork.c:1394
exit_mm kernel/exit.c:575 [inline]
do_exit+0x9a5/0x2850 kernel/exit.c:942
do_group_exit+0x21f/0x2f0 kernel/exit.c:1098
get_signal+0x134c/0x1490 kernel/signal.c:2933
arch_do_signal_or_restart+0xbc/0x700 arch/x86/kernel/signal.c:337
exit_to_user_mode_loop kernel/entry/common.c:111 [inline]
exit_to_user_mode_prepare include/linux/entry-common.h:328 [inline]
__syscall_exit_to_user_mode_work kernel/entry/common.c:207 [inline]
syscall_exit_to_user_mode+0x57/0xb0 kernel/entry/common.c:218
do_syscall_64+0x63/0xf0 arch/x86/entry/common.c:84
entry_SYSCALL_64_after_hwframe+0x76/0x7e
RIP: 0033:0x7f956859e019
Code: Unable to access opcode bytes at 0x7f956859dfef.
RSP: 002b:00007f95694cf0e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
RAX: fffffffffffffe00 RBX: 00007f9568825fa8 RCX: 00007f956859e019
RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007f9568825fa8
RBP: 00007f9568825fa0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f9568826038 R14: 00007fff2f078cc0 R15: 00007fff2f078da8
---[ end trace ]---
------------[ cut here ]------------
UBSAN: array-index-out-of-bounds in drivers/input/tablet/aiptek.c:763:30
index 53018 is out of range for type 'const int[34]'
CPU: 1 UID: 0 PID: 1774 Comm: syz.2.390 Not tainted syzkaller #0 200dea8a17c83f35b0a1e1238c384757fc17b797
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
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:1648
usb_hcd_giveback_urb+0x12b/0x400 drivers/usb/core/hcd.c:1732
dummy_timer+0xa3f/0x4900 drivers/usb/gadget/udc/dummy_hcd.c:2003
__run_hrtimer kernel/time/hrtimer.c:1757 [inline]
__hrtimer_run_queues+0x3ae/0x8e0 kernel/time/hrtimer.c:1821
hrtimer_run_softirq+0x159/0x560 kernel/time/hrtimer.c:1838
handle_softirqs+0x1aa/0x620 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:__sanitizer_cov_trace_const_cmp8+0x0/0x90 kernel/kcov.c:320
Code: 00 48 89 7c 11 10 48 89 74 11 18 48 89 44 11 20 5d e9 54 98 1e 04 cc 0f 1f 00 b8 8c 63 8d 19 90 90 90 90 90 90 90 90 90 90 90 0f 1e fa 55 48 89 e5 48 8b 45 08 65 48 8b 0d 0c 75 7d 7e 65 8b
RSP: 0018:ffffc90010f774f8 EFLAGS: 00000246
RAX: dffffc0000000000 RBX: 800000011d090025 RCX: ffff888120743900
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc90010f777b0 R08: ffffea0004742407 R09: 1ffffd40008e8480
R10: dffffc0000000000 R11: fffff940008e8481 R12: 000000110c2de000
R13: ffffea0004742418 R14: ffff888110f3ed38 R15: 1ffffd40008e8483
unmap_single_vma mm/memory.c:1962 [inline]
unmap_vmas+0x2dd/0x400 mm/memory.c:2006
exit_mmap+0x28a/0xc20 mm/mmap.c:1969
__mmput+0x92/0x330 kernel/fork.c:1370
mmput+0x55/0x170 kernel/fork.c:1394
exit_mm kernel/exit.c:575 [inline]
do_exit+0x9a5/0x2850 kernel/exit.c:942
do_group_exit+0x21f/0x2f0 kernel/exit.c:1098
get_signal+0x134c/0x1490 kernel/signal.c:2933
arch_do_signal_or_restart+0xbc/0x700 arch/x86/kernel/signal.c:337
exit_to_user_mode_loop kernel/entry/common.c:111 [inline]
exit_to_user_mode_prepare include/linux/entry-common.h:328 [inline]
__syscall_exit_to_user_mode_work kernel/entry/common.c:207 [inline]
syscall_exit_to_user_mode+0x57/0xb0 kernel/entry/common.c:218
do_syscall_64+0x63/0xf0 arch/x86/entry/common.c:84
entry_SYSCALL_64_after_hwframe+0x76/0x7e
RIP: 0033:0x7f956859e019
Code: Unable to access opcode bytes at 0x7f956859dfef.
RSP: 002b:00007f95694cf0e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
RAX: fffffffffffffe00 RBX: 00007f9568825fa8 RCX: 00007f956859e019
RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007f9568825fa8
RBP: 00007f9568825fa0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f9568826038 R14: 00007fff2f078cc0 R15: 00007fff2f078da8
---[ end trace ]---
aiptek 1-1:0.0: aiptek_irq - usb_submit_urb failed with result -19
----------------
Code disassembly (best guess):
0: 00 48 89 add %cl,-0x77(%rax)
3: 7c 11 jl 0x16
5: 10 48 89 adc %cl,-0x77(%rax)
8: 74 11 je 0x1b
a: 18 48 89 sbb %cl,-0x77(%rax)
d: 44 11 20 adc %r12d,(%rax)
10: 5d pop %rbp
11: e9 54 98 1e 04 jmp 0x41e986a
16: cc int3
17: 0f 1f 00 nopl (%rax)
1a: b8 8c 63 8d 19 mov $0x198d638c,%eax
1f: 90 nop
20: 90 nop
21: 90 nop
22: 90 nop
23: 90 nop
24: 90 nop
25: 90 nop
26: 90 nop
27: 90 nop
28: 90 nop
29: 90 nop
* 2a: f3 0f 1e fa endbr64 <-- trapping instruction
2e: 55 push %rbp
2f: 48 89 e5 mov %rsp,%rbp
32: 48 8b 45 08 mov 0x8(%rbp),%rax
36: 65 48 8b 0d 0c 75 7d mov %gs:0x7e7d750c(%rip),%rcx # 0x7e7d754a
3d: 7e
3e: 65 gs
3f: 8b .byte 0x8b