================================================================================
UBSAN: array-index-out-of-bounds in drivers/input/tablet/aiptek.c:741:31
index 265 is out of range for type 'const int[34]'
CPU: 0 PID: 488 Comm: kworker/0:3 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/06/2026
Workqueue: 0x0 (events)
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+0x1dd/0x5f0 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:__raw_spin_unlock_irq include/linux/spinlock_api_smp.h:160 [inline]
RIP: 0010:_raw_spin_unlock_irq+0x48/0x70 kernel/locking/spinlock.c:202
Code: 74 12 48 89 fb 48 c7 c7 c0 db 0d 87 e8 61 e9 b4 fc 48 89 df 48 83 3d 26 b8 0b 02 00 74 26 e8 13 0d 00 00 90 fb bf 01 00 00 00 83 73 4a fc 65 8b 05 14 4a 00 7b 85 c0 74 03 5b 5d c3 e8 e4 58
RSP: 0018:ffffc900100efdc0 EFLAGS: 00000246
RAX: 0000000000000001 RBX: dffffc0000000000 RCX: dffffc0000000000
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000001
RBP: ffffc900100efdc8 R08: ffff8881151b3d27 R09: ffff8881151b3d10
R10: dffffc0000000000 R11: ffffed1022a367a5 R12: ffff8881f6e378c0
R13: ffff8881151b3d00 R14: ffff8881151b3d68 R15: 0000000000000000
worker_thread+0xe8c/0x11d0 kernel/workqueue.c:2469
kthread+0x281/0x320 kernel/kthread.c:386
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295
================================================================================
==================================================================
BUG: KASAN: global-out-of-bounds in aiptek_irq+0x2063/0x29b0 drivers/input/tablet/aiptek.c:741
Read of size 4 at addr ffffffff85e66a24 by task kworker/0:3/488
CPU: 0 PID: 488 Comm: kworker/0:3 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/06/2026
Workqueue: 0x0 (events)
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: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+0x1dd/0x5f0 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:__raw_spin_unlock_irq include/linux/spinlock_api_smp.h:160 [inline]
RIP: 0010:_raw_spin_unlock_irq+0x48/0x70 kernel/locking/spinlock.c:202
Code: 74 12 48 89 fb 48 c7 c7 c0 db 0d 87 e8 61 e9 b4 fc 48 89 df 48 83 3d 26 b8 0b 02 00 74 26 e8 13 0d 00 00 90 fb bf 01 00 00 00 83 73 4a fc 65 8b 05 14 4a 00 7b 85 c0 74 03 5b 5d c3 e8 e4 58
RSP: 0018:ffffc900100efdc0 EFLAGS: 00000246
RAX: 0000000000000001 RBX: dffffc0000000000 RCX: dffffc0000000000
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000001
RBP: ffffc900100efdc8 R08: ffff8881151b3d27 R09: ffff8881151b3d10
R10: dffffc0000000000 R11: ffffed1022a367a5 R12: ffff8881f6e378c0
R13: ffff8881151b3d00 R14: ffff8881151b3d68 R15: 0000000000000000
worker_thread+0xe8c/0x11d0 kernel/workqueue.c:2469
kthread+0x281/0x320 kernel/kthread.c:386
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295
The buggy address belongs to the variable:
aiptek_ids+0x144/0x160
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:
ffffffff85e66900: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
ffffffff85e66980: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
>ffffffff85e66a00: f9 f9 f9 f9 f9 f9 f9 f9 00 00 00 00 00 f9 f9 f9
^
ffffffff85e66a80: f9 f9 f9 f9 05 f9 f9 f9 07 f9 f9 f9 00 05 f9 f9
ffffffff85e66b00: 04 f9 f9 f9 00 f9 f9 f9 07 f9 f9 f9 06 f9 f9 f9
==================================================================
================================================================================
UBSAN: array-index-out-of-bounds in drivers/input/tablet/aiptek.c:763:30
index 266 is out of range for type 'const int[34]'
CPU: 0 PID: 488 Comm: kworker/0:3 Tainted: G B syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/06/2026
Workqueue: 0x0 (events)
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+0x1dd/0x5f0 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:__raw_spin_unlock_irq include/linux/spinlock_api_smp.h:160 [inline]
RIP: 0010:_raw_spin_unlock_irq+0x48/0x70 kernel/locking/spinlock.c:202
Code: 74 12 48 89 fb 48 c7 c7 c0 db 0d 87 e8 61 e9 b4 fc 48 89 df 48 83 3d 26 b8 0b 02 00 74 26 e8 13 0d 00 00 90 fb bf 01 00 00 00 83 73 4a fc 65 8b 05 14 4a 00 7b 85 c0 74 03 5b 5d c3 e8 e4 58
RSP: 0018:ffffc900100efdc0 EFLAGS: 00000246
RAX: 0000000000000001 RBX: dffffc0000000000 RCX: dffffc0000000000
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000001
RBP: ffffc900100efdc8 R08: ffff8881151b3d27 R09: ffff8881151b3d10
R10: dffffc0000000000 R11: ffffed1022a367a5 R12: ffff8881f6e378c0
R13: ffff8881151b3d00 R14: ffff8881151b3d68 R15: 0000000000000000
worker_thread+0xe8c/0x11d0 kernel/workqueue.c:2469
kthread+0x281/0x320 kernel/kthread.c:386
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295
================================================================================
aiptek 4-1:0.0: aiptek_irq - usb_submit_urb failed with result -19
----------------
Code disassembly (best guess):
0: 74 12 je 0x14
2: 48 89 fb mov %rdi,%rbx
5: 48 c7 c7 c0 db 0d 87 mov $0xffffffff870ddbc0,%rdi
c: e8 61 e9 b4 fc call 0xfcb4e972
11: 48 89 df mov %rbx,%rdi
14: 48 83 3d 26 b8 0b 02 cmpq $0x0,0x20bb826(%rip) # 0x20bb842
1b: 00
1c: 74 26 je 0x44
1e: e8 13 0d 00 00 call 0xd36
23: 90 nop
24: fb sti
25: bf 01 00 00 00 mov $0x1,%edi
* 2a: e8 83 73 4a fc call 0xfc4a73b2 <-- trapping instruction
2f: 65 8b 05 14 4a 00 7b mov %gs:0x7b004a14(%rip),%eax # 0x7b004a4a
36: 85 c0 test %eax,%eax
38: 74 03 je 0x3d
3a: 5b pop %rbx
3b: 5d pop %rbp
3c: c3 ret
3d: e8 .byte 0xe8
3e: e4 58 in $0x58,%al