================================================================================
UBSAN: array-index-out-of-bounds in drivers/input/tablet/aiptek.c:741:31
index 36681 is out of range for type 'const int[34]'
CPU: 1 PID: 633 Comm: syz.0.83 Not tainted 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:1673
usb_hcd_giveback_urb+0x11f/0x3e0 drivers/usb/core/hcd.c:1756
dummy_timer+0xa25/0x3270 drivers/usb/gadget/udc/dummy_hcd.c:2004
__run_hrtimer kernel/time/hrtimer.c:1689 [inline]
__hrtimer_run_queues+0x398/0x8a0 kernel/time/hrtimer.c:1753
hrtimer_run_softirq+0x19b/0x260 kernel/time/hrtimer.c:1770
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:update_stack_state+0x422/0x490 arch/x86/kernel/unwind_frame.c:-1
Code: d8 48 c1 e8 03 42 80 3c 28 00 74 08 48 89 df e8 24 53 81 00 4c 89 33 43 80 3c 2c 00 48 8b 5d c8 74 08 48 89 df e8 1e 52 81 00 01 48 83 3b 00 0f 85 82 fe ff ff 43 80 3c 2c 00 74 0a 48 89 df
RSP: 0018:ffffc90002c07168 EFLAGS: 00000246
RAX: 1ffff92000580e5a RBX: ffffc90002c072c8 RCX: ffffc90002c07601
RDX: ffffc90002c076b8 RSI: 1ffff92000580e52 RDI: ffffc90002c072b0
RBP: ffffc90002c07218 R08: ffffc90002c07350 R09: ffffc90002c07348
R10: 0000000000000004 R11: fffff52000580e5d R12: 1ffff92000580e59
R13: dffffc0000000000 R14: ffffffff81b63ded R15: ffffc90002c072e0
unwind_next_frame+0x39e/0x660 arch/x86/kernel/unwind_frame.c:315
arch_stack_walk+0x124/0x150 arch/x86/kernel/stacktrace.c:25
stack_trace_save+0xa6/0xf0 kernel/stacktrace.c:122
kasan_save_stack mm/kasan/common.c:46 [inline]
kasan_set_track+0x4b/0x70 mm/kasan/common.c:53
kasan_save_free_info+0x2b/0x40 mm/kasan/generic.c:516
____kasan_slab_free+0x132/0x180 mm/kasan/common.c:242
__kasan_slab_free+0x11/0x20 mm/kasan/common.c:250
kasan_slab_free include/linux/kasan.h:178 [inline]
slab_free_hook mm/slub.c:1750 [inline]
slab_free_freelist_hook+0xc2/0x190 mm/slub.c:1776
slab_free mm/slub.c:3712 [inline]
kmem_cache_free+0x12d/0x300 mm/slub.c:3737
__vm_area_free+0x7e/0x130 kernel/fork.c:539
remove_vma mm/mmap.c:154 [inline]
exit_mmap+0x5e2/0xc10 mm/mmap.c:3394
__mmput+0x92/0x340 kernel/fork.c:1321
mmput+0x4b/0x150 kernel/fork.c:1345
exit_mm kernel/exit.c:575 [inline]
do_exit+0xa58/0x2970 kernel/exit.c:881
do_group_exit+0x21b/0x2e0 kernel/exit.c:1038
get_signal+0x167c/0x1700 kernel/signal.c:2904
arch_do_signal_or_restart+0xd1/0x11c0 arch/x86/kernel/signal.c:871
exit_to_user_mode_loop+0x7a/0xb0 kernel/entry/common.c:174
exit_to_user_mode_prepare+0x87/0xd0 kernel/entry/common.c:210
__syscall_exit_to_user_mode_work kernel/entry/common.c:292 [inline]
syscall_exit_to_user_mode+0x1a/0x30 kernel/entry/common.c:303
do_syscall_64+0x58/0xa0 arch/x86/entry/common.c:82
entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7f7ff899e159
Code: Unable to access opcode bytes at 0x7f7ff899e12f.
RSP: 002b:00007f7ff98070e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
RAX: fffffffffffffe00 RBX: 00007f7ff8c26188 RCX: 00007f7ff899e159
RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007f7ff8c26188
RBP: 00007f7ff8c26180 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f7ff8c26218 R14: 00007ffc03c702d0 R15: 00007ffc03c703b8
================================================================================
================================================================================
UBSAN: array-index-out-of-bounds in drivers/input/tablet/aiptek.c:763:30
index 36682 is out of range for type 'const int[34]'
CPU: 1 PID: 633 Comm: syz.0.83 Not tainted 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:1673
usb_hcd_giveback_urb+0x11f/0x3e0 drivers/usb/core/hcd.c:1756
dummy_timer+0xa25/0x3270 drivers/usb/gadget/udc/dummy_hcd.c:2004
__run_hrtimer kernel/time/hrtimer.c:1689 [inline]
__hrtimer_run_queues+0x398/0x8a0 kernel/time/hrtimer.c:1753
hrtimer_run_softirq+0x19b/0x260 kernel/time/hrtimer.c:1770
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:update_stack_state+0x422/0x490 arch/x86/kernel/unwind_frame.c:-1
Code: d8 48 c1 e8 03 42 80 3c 28 00 74 08 48 89 df e8 24 53 81 00 4c 89 33 43 80 3c 2c 00 48 8b 5d c8 74 08 48 89 df e8 1e 52 81 00 01 48 83 3b 00 0f 85 82 fe ff ff 43 80 3c 2c 00 74 0a 48 89 df
RSP: 0018:ffffc90002c07168 EFLAGS: 00000246
RAX: 1ffff92000580e5a RBX: ffffc90002c072c8 RCX: ffffc90002c07601
RDX: ffffc90002c076b8 RSI: 1ffff92000580e52 RDI: ffffc90002c072b0
RBP: ffffc90002c07218 R08: ffffc90002c07350 R09: ffffc90002c07348
R10: 0000000000000004 R11: fffff52000580e5d R12: 1ffff92000580e59
R13: dffffc0000000000 R14: ffffffff81b63ded R15: ffffc90002c072e0
unwind_next_frame+0x39e/0x660 arch/x86/kernel/unwind_frame.c:315
arch_stack_walk+0x124/0x150 arch/x86/kernel/stacktrace.c:25
stack_trace_save+0xa6/0xf0 kernel/stacktrace.c:122
kasan_save_stack mm/kasan/common.c:46 [inline]
kasan_set_track+0x4b/0x70 mm/kasan/common.c:53
kasan_save_free_info+0x2b/0x40 mm/kasan/generic.c:516
____kasan_slab_free+0x132/0x180 mm/kasan/common.c:242
__kasan_slab_free+0x11/0x20 mm/kasan/common.c:250
kasan_slab_free include/linux/kasan.h:178 [inline]
slab_free_hook mm/slub.c:1750 [inline]
slab_free_freelist_hook+0xc2/0x190 mm/slub.c:1776
slab_free mm/slub.c:3712 [inline]
kmem_cache_free+0x12d/0x300 mm/slub.c:3737
__vm_area_free+0x7e/0x130 kernel/fork.c:539
remove_vma mm/mmap.c:154 [inline]
exit_mmap+0x5e2/0xc10 mm/mmap.c:3394
__mmput+0x92/0x340 kernel/fork.c:1321
mmput+0x4b/0x150 kernel/fork.c:1345
exit_mm kernel/exit.c:575 [inline]
do_exit+0xa58/0x2970 kernel/exit.c:881
do_group_exit+0x21b/0x2e0 kernel/exit.c:1038
get_signal+0x167c/0x1700 kernel/signal.c:2904
arch_do_signal_or_restart+0xd1/0x11c0 arch/x86/kernel/signal.c:871
exit_to_user_mode_loop+0x7a/0xb0 kernel/entry/common.c:174
exit_to_user_mode_prepare+0x87/0xd0 kernel/entry/common.c:210
__syscall_exit_to_user_mode_work kernel/entry/common.c:292 [inline]
syscall_exit_to_user_mode+0x1a/0x30 kernel/entry/common.c:303
do_syscall_64+0x58/0xa0 arch/x86/entry/common.c:82
entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7f7ff899e159
Code: Unable to access opcode bytes at 0x7f7ff899e12f.
RSP: 002b:00007f7ff98070e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
RAX: fffffffffffffe00 RBX: 00007f7ff8c26188 RCX: 00007f7ff899e159
RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007f7ff8c26188
RBP: 00007f7ff8c26180 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f7ff8c26218 R14: 00007ffc03c702d0 R15: 00007ffc03c703b8
================================================================================
aiptek 5-1:0.0: aiptek_irq - usb_submit_urb failed with result -19
----------------
Code disassembly (best guess):
0: d8 48 c1 fmuls -0x3f(%rax)
3: e8 03 42 80 3c call 0x3c80420b
8: 28 00 sub %al,(%rax)
a: 74 08 je 0x14
c: 48 89 df mov %rbx,%rdi
f: e8 24 53 81 00 call 0x815338
14: 4c 89 33 mov %r14,(%rbx)
17: 43 80 3c 2c 00 cmpb $0x0,(%r12,%r13,1)
1c: 48 8b 5d c8 mov -0x38(%rbp),%rbx
20: 74 08 je 0x2a
22: 48 89 df mov %rbx,%rdi
25: e8 1e 52 81 00 call 0x815248
* 2a: b0 01 mov $0x1,%al <-- trapping instruction
2c: 48 83 3b 00 cmpq $0x0,(%rbx)
30: 0f 85 82 fe ff ff jne 0xfffffeb8
36: 43 80 3c 2c 00 cmpb $0x0,(%r12,%r13,1)
3b: 74 0a je 0x47
3d: 48 89 df mov %rbx,%rdi