================================================================================
UBSAN: array-index-out-of-bounds in drivers/input/tablet/aiptek.c:741:31
index 65092 is out of range for type 'const int[34]'
CPU: 0 PID: 4951 Comm: syz.4.1947 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
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:1672
usb_hcd_giveback_urb+0x11d/0x3f0 drivers/usb/core/hcd.c:1749
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:__tlb_adjust_range include/asm-generic/tlb.h:316 [inline]
RIP: 0010:tlb_flush_pte_range include/asm-generic/tlb.h:527 [inline]
RIP: 0010:zap_pte_range mm/memory.c:1437 [inline]
RIP: 0010:zap_pmd_range mm/memory.c:1577 [inline]
RIP: 0010:zap_pud_range mm/memory.c:1606 [inline]
RIP: 0010:zap_p4d_range mm/memory.c:1627 [inline]
RIP: 0010:unmap_page_range+0xd6e/0x1e00 mm/memory.c:1648
Code: 24 28 e8 b5 bb 0a 00 48 8b 4c 24 28 4c 8b 21 48 8b 44 24 18 49 39 c4 4c 0f 46 e0 48 b8 00 00 00 00 00 fc ff df 41 80 3c 07 00 <48> 8b 5c 24 30 74 0f 48 8b 7c 24 28 e8 21 bc 0a 00 48 8b 4c 24 28
RSP: 0018:ffffc90000c578a0 EFLAGS: 00000246
RAX: dffffc0000000000 RBX: ffffc90000c57bf0 RCX: ffffc90000c57bf8
RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000
RBP: ffffc90000c57a70 R08: ffff88811385a787 R09: 1ffff1102270b4f0
R10: dffffc0000000000 R11: ffffed102270b4f1 R12: ffffffffffffffff
R13: ffffc90000c57c00 R14: 1ffff9200018af80 R15: 1ffff9200018af7f
unmap_single_vma mm/memory.c:1693 [inline]
unmap_vmas+0x26d/0x380 mm/memory.c:1725
exit_mmap+0x412/0x8b0 mm/mmap.c:3245
__mmput+0x92/0x300 kernel/fork.c:1185
mmput+0x50/0x150 kernel/fork.c:1208
exit_mm kernel/exit.c:555 [inline]
do_exit+0xacc/0x29a0 kernel/exit.c:877
do_group_exit+0x149/0x310 kernel/exit.c:1004
__do_sys_exit_group kernel/exit.c:1015 [inline]
__se_sys_exit_group kernel/exit.c:1013 [inline]
__x64_sys_exit_group+0x3f/0x40 kernel/exit.c:1013
x64_sys_call+0x832/0x9a0 arch/x86/include/generated/asm/syscalls_64.h:232
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x66/0xd0
RIP: 0033:0x7f1b702c20d9
Code: Unable to access opcode bytes at RIP 0x7f1b702c20af.
RSP: 002b:00007ffdabf541c8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f1b702c20d9
RDX: 0000000000000064 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 00007ffdabf5422c R08: 0000000000000000 R09: 00000000000927c0
R10: 0000000000000001 R11: 0000000000000246 R12: 00000000000001c4
R13: 00000000000927c0 R14: 00000000000216f0 R15: 00007ffdabf54280
================================================================================
==================================================================
BUG: KASAN: global-out-of-bounds in aiptek_irq+0x2063/0x29b0 drivers/input/tablet/aiptek.c:741
Read of size 4 at addr ffffffff8582d910 by task syz.4.1947/4951
CPU: 0 PID: 4951 Comm: syz.4.1947 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
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:1672
usb_hcd_giveback_urb+0x11d/0x3f0 drivers/usb/core/hcd.c:1749
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:__tlb_adjust_range include/asm-generic/tlb.h:316 [inline]
RIP: 0010:tlb_flush_pte_range include/asm-generic/tlb.h:527 [inline]
RIP: 0010:zap_pte_range mm/memory.c:1437 [inline]
RIP: 0010:zap_pmd_range mm/memory.c:1577 [inline]
RIP: 0010:zap_pud_range mm/memory.c:1606 [inline]
RIP: 0010:zap_p4d_range mm/memory.c:1627 [inline]
RIP: 0010:unmap_page_range+0xd6e/0x1e00 mm/memory.c:1648
Code: 24 28 e8 b5 bb 0a 00 48 8b 4c 24 28 4c 8b 21 48 8b 44 24 18 49 39 c4 4c 0f 46 e0 48 b8 00 00 00 00 00 fc ff df 41 80 3c 07 00 <48> 8b 5c 24 30 74 0f 48 8b 7c 24 28 e8 21 bc 0a 00 48 8b 4c 24 28
RSP: 0018:ffffc90000c578a0 EFLAGS: 00000246
RAX: dffffc0000000000 RBX: ffffc90000c57bf0 RCX: ffffc90000c57bf8
RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000
RBP: ffffc90000c57a70 R08: ffff88811385a787 R09: 1ffff1102270b4f0
R10: dffffc0000000000 R11: ffffed102270b4f1 R12: ffffffffffffffff
R13: ffffc90000c57c00 R14: 1ffff9200018af80 R15: 1ffff9200018af7f
unmap_single_vma mm/memory.c:1693 [inline]
unmap_vmas+0x26d/0x380 mm/memory.c:1725
exit_mmap+0x412/0x8b0 mm/mmap.c:3245
__mmput+0x92/0x300 kernel/fork.c:1185
mmput+0x50/0x150 kernel/fork.c:1208
exit_mm kernel/exit.c:555 [inline]
do_exit+0xacc/0x29a0 kernel/exit.c:877
do_group_exit+0x149/0x310 kernel/exit.c:1004
__do_sys_exit_group kernel/exit.c:1015 [inline]
__se_sys_exit_group kernel/exit.c:1013 [inline]
__x64_sys_exit_group+0x3f/0x40 kernel/exit.c:1013
x64_sys_call+0x832/0x9a0 arch/x86/include/generated/asm/syscalls_64.h:232
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x66/0xd0
RIP: 0033:0x7f1b702c20d9
Code: Unable to access opcode bytes at RIP 0x7f1b702c20af.
RSP: 002b:00007ffdabf541c8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f1b702c20d9
RDX: 0000000000000064 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 00007ffdabf5422c R08: 0000000000000000 R09: 00000000000927c0
R10: 0000000000000001 R11: 0000000000000246 R12: 00000000000001c4
R13: 00000000000927c0 R14: 00000000000216f0 R15: 00007ffdabf54280
The buggy address belongs to the variable:
.str.77+0x10/0x40
Memory state around the buggy address:
ffffffff8582d800: f9 f9 f9 f9 06 f9 f9 f9 00 00 01 f9 f9 f9 f9 f9
ffffffff8582d880: 00 00 01 f9 f9 f9 f9 f9 00 00 01 f9 f9 f9 f9 f9
>ffffffff8582d900: 00 00 01 f9 f9 f9 f9 f9 00 00 07 f9 f9 f9 f9 f9
^
ffffffff8582d980: 00 00 07 f9 f9 f9 f9 f9 00 00 00 04 f9 f9 f9 f9
ffffffff8582da00: 00 00 01 f9 f9 f9 f9 f9 00 00 00 f9 f9 f9 f9 f9
==================================================================
================================================================================
UBSAN: array-index-out-of-bounds in drivers/input/tablet/aiptek.c:763:30
index 65093 is out of range for type 'const int[34]'
CPU: 0 PID: 4951 Comm: syz.4.1947 Tainted: G B syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
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:1672
usb_hcd_giveback_urb+0x11d/0x3f0 drivers/usb/core/hcd.c:1749
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:__tlb_adjust_range include/asm-generic/tlb.h:316 [inline]
RIP: 0010:tlb_flush_pte_range include/asm-generic/tlb.h:527 [inline]
RIP: 0010:zap_pte_range mm/memory.c:1437 [inline]
RIP: 0010:zap_pmd_range mm/memory.c:1577 [inline]
RIP: 0010:zap_pud_range mm/memory.c:1606 [inline]
RIP: 0010:zap_p4d_range mm/memory.c:1627 [inline]
RIP: 0010:unmap_page_range+0xd6e/0x1e00 mm/memory.c:1648
Code: 24 28 e8 b5 bb 0a 00 48 8b 4c 24 28 4c 8b 21 48 8b 44 24 18 49 39 c4 4c 0f 46 e0 48 b8 00 00 00 00 00 fc ff df 41 80 3c 07 00 <48> 8b 5c 24 30 74 0f 48 8b 7c 24 28 e8 21 bc 0a 00 48 8b 4c 24 28
RSP: 0018:ffffc90000c578a0 EFLAGS: 00000246
RAX: dffffc0000000000 RBX: ffffc90000c57bf0 RCX: ffffc90000c57bf8
RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000
RBP: ffffc90000c57a70 R08: ffff88811385a787 R09: 1ffff1102270b4f0
R10: dffffc0000000000 R11: ffffed102270b4f1 R12: ffffffffffffffff
R13: ffffc90000c57c00 R14: 1ffff9200018af80 R15: 1ffff9200018af7f
unmap_single_vma mm/memory.c:1693 [inline]
unmap_vmas+0x26d/0x380 mm/memory.c:1725
exit_mmap+0x412/0x8b0 mm/mmap.c:3245
__mmput+0x92/0x300 kernel/fork.c:1185
mmput+0x50/0x150 kernel/fork.c:1208
exit_mm kernel/exit.c:555 [inline]
do_exit+0xacc/0x29a0 kernel/exit.c:877
do_group_exit+0x149/0x310 kernel/exit.c:1004
__do_sys_exit_group kernel/exit.c:1015 [inline]
__se_sys_exit_group kernel/exit.c:1013 [inline]
__x64_sys_exit_group+0x3f/0x40 kernel/exit.c:1013
x64_sys_call+0x832/0x9a0 arch/x86/include/generated/asm/syscalls_64.h:232
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x66/0xd0
RIP: 0033:0x7f1b702c20d9
Code: Unable to access opcode bytes at RIP 0x7f1b702c20af.
RSP: 002b:00007ffdabf541c8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f1b702c20d9
RDX: 0000000000000064 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 00007ffdabf5422c R08: 0000000000000000 R09: 00000000000927c0
R10: 0000000000000001 R11: 0000000000000246 R12: 00000000000001c4
R13: 00000000000927c0 R14: 00000000000216f0 R15: 00007ffdabf54280
================================================================================
----------------
Code disassembly (best guess):
0: 24 28 and $0x28,%al
2: e8 b5 bb 0a 00 call 0xabbbc
7: 48 8b 4c 24 28 mov 0x28(%rsp),%rcx
c: 4c 8b 21 mov (%rcx),%r12
f: 48 8b 44 24 18 mov 0x18(%rsp),%rax
14: 49 39 c4 cmp %rax,%r12
17: 4c 0f 46 e0 cmovbe %rax,%r12
1b: 48 b8 00 00 00 00 00 movabs $0xdffffc0000000000,%rax
22: fc ff df
25: 41 80 3c 07 00 cmpb $0x0,(%r15,%rax,1)
* 2a: 48 8b 5c 24 30 mov 0x30(%rsp),%rbx <-- trapping instruction
2f: 74 0f je 0x40
31: 48 8b 7c 24 28 mov 0x28(%rsp),%rdi
36: e8 21 bc 0a 00 call 0xabc5c
3b: 48 8b 4c 24 28 mov 0x28(%rsp),%rcx