================================================================================
UBSAN: array-index-out-of-bounds in drivers/input/tablet/aiptek.c:741:31
index 2803 is out of range for type 'const int[34]'
CPU: 1 PID: 589 Comm: syz.6.99 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/07/2026
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+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:propagate_precision kernel/bpf/verifier.c:12132 [inline]
RIP: 0010:is_state_visited kernel/bpf/verifier.c:12265 [inline]
RIP: 0010:do_check+0x8eaf/0xf140 kernel/bpf/verifier.c:12461
Code: 68 05 00 00 c7 44 24 10 f8 ff ff ff 41 bd 70 00 00 00 45 31 ff 4c 89 f0 48 c1 e8 03 48 b9 00 00 00 00 00 fc ff df 80 3c 08 00 <74> 08 4c 89 f7 e8 47 97 30 00 4c 89 f3 4d 8b 36 4b 8d 7c 35 0f 48
RSP: 0018:ffffc90005a37060 EFLAGS: 00000246
RAX: 1ffff110223538ad RBX: ffff888111a9c568 RCX: dffffc0000000000
RDX: ffffc900016ea000 RSI: 000000000007ffff RDI: 0000000000080000
RBP: ffffc90005a37310 R08: 0000000000100cc0 R09: 0000000000000001
R10: ffff8881f5a00000 R11: 0000000007771c0a R12: 0000000000000000
R13: 0000000000001cf0 R14: ffff888111a9c568 R15: 0000000000000039
do_check_common+0x11c3/0x1970 kernel/bpf/verifier.c:14940
do_check_main kernel/bpf/verifier.c:15003 [inline]
bpf_check+0xa04e/0x10e90 kernel/bpf/verifier.c:15580
bpf_prog_load+0x10f4/0x1670 kernel/bpf/syscall.c:2624
__sys_bpf+0x57b/0x850 kernel/bpf/syscall.c:5006
__do_sys_bpf kernel/bpf/syscall.c:5110 [inline]
__se_sys_bpf kernel/bpf/syscall.c:5108 [inline]
__x64_sys_bpf+0x7c/0x90 kernel/bpf/syscall.c:5108
x64_sys_call+0x488/0x9a0 arch/x86/include/generated/asm/syscalls_64.h:322
do_syscall_x64 arch/x86/entry/common.c:46 [inline]
do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:76
entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7f25b419f559
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f25b5107028 EFLAGS: 00000246 ORIG_RAX: 0000000000000141
RAX: ffffffffffffffda RBX: 00007f25b4425fa0 RCX: 00007f25b419f559
RDX: 0000000000000048 RSI: 00002000000000c0 RDI: 0000000000000005
RBP: 00007f25b4236b20 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f25b4426038 R14: 00007f25b4425fa0 R15: 00007ffd78221908
================================================================================
================================================================================
UBSAN: array-index-out-of-bounds in drivers/input/tablet/aiptek.c:763:30
index 2804 is out of range for type 'const int[34]'
CPU: 1 PID: 589 Comm: syz.6.99 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/07/2026
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+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:propagate_precision kernel/bpf/verifier.c:12132 [inline]
RIP: 0010:is_state_visited kernel/bpf/verifier.c:12265 [inline]
RIP: 0010:do_check+0x8eaf/0xf140 kernel/bpf/verifier.c:12461
Code: 68 05 00 00 c7 44 24 10 f8 ff ff ff 41 bd 70 00 00 00 45 31 ff 4c 89 f0 48 c1 e8 03 48 b9 00 00 00 00 00 fc ff df 80 3c 08 00 <74> 08 4c 89 f7 e8 47 97 30 00 4c 89 f3 4d 8b 36 4b 8d 7c 35 0f 48
RSP: 0018:ffffc90005a37060 EFLAGS: 00000246
RAX: 1ffff110223538ad RBX: ffff888111a9c568 RCX: dffffc0000000000
RDX: ffffc900016ea000 RSI: 000000000007ffff RDI: 0000000000080000
RBP: ffffc90005a37310 R08: 0000000000100cc0 R09: 0000000000000001
R10: ffff8881f5a00000 R11: 0000000007771c0a R12: 0000000000000000
R13: 0000000000001cf0 R14: ffff888111a9c568 R15: 0000000000000039
do_check_common+0x11c3/0x1970 kernel/bpf/verifier.c:14940
do_check_main kernel/bpf/verifier.c:15003 [inline]
bpf_check+0xa04e/0x10e90 kernel/bpf/verifier.c:15580
bpf_prog_load+0x10f4/0x1670 kernel/bpf/syscall.c:2624
__sys_bpf+0x57b/0x850 kernel/bpf/syscall.c:5006
__do_sys_bpf kernel/bpf/syscall.c:5110 [inline]
__se_sys_bpf kernel/bpf/syscall.c:5108 [inline]
__x64_sys_bpf+0x7c/0x90 kernel/bpf/syscall.c:5108
x64_sys_call+0x488/0x9a0 arch/x86/include/generated/asm/syscalls_64.h:322
do_syscall_x64 arch/x86/entry/common.c:46 [inline]
do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:76
entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7f25b419f559
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f25b5107028 EFLAGS: 00000246 ORIG_RAX: 0000000000000141
RAX: ffffffffffffffda RBX: 00007f25b4425fa0 RCX: 00007f25b419f559
RDX: 0000000000000048 RSI: 00002000000000c0 RDI: 0000000000000005
RBP: 00007f25b4236b20 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f25b4426038 R14: 00007f25b4425fa0 R15: 00007ffd78221908
================================================================================
==================================================================
BUG: KASAN: global-out-of-bounds in aiptek_irq+0x1f32/0x29b0 drivers/input/tablet/aiptek.c:763
Read of size 4 at addr ffffffff85e69150 by task syz.6.99/589
CPU: 1 PID: 589 Comm: syz.6.99 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/07/2026
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+0x1f32/0x29b0 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:propagate_precision kernel/bpf/verifier.c:12132 [inline]
RIP: 0010:is_state_visited kernel/bpf/verifier.c:12265 [inline]
RIP: 0010:do_check+0x8eaf/0xf140 kernel/bpf/verifier.c:12461
Code: 68 05 00 00 c7 44 24 10 f8 ff ff ff 41 bd 70 00 00 00 45 31 ff 4c 89 f0 48 c1 e8 03 48 b9 00 00 00 00 00 fc ff df 80 3c 08 00 <74> 08 4c 89 f7 e8 47 97 30 00 4c 89 f3 4d 8b 36 4b 8d 7c 35 0f 48
RSP: 0018:ffffc90005a37060 EFLAGS: 00000246
RAX: 1ffff110223538ad RBX: ffff888111a9c568 RCX: dffffc0000000000
RDX: ffffc900016ea000 RSI: 000000000007ffff RDI: 0000000000080000
RBP: ffffc90005a37310 R08: 0000000000100cc0 R09: 0000000000000001
R10: ffff8881f5a00000 R11: 0000000007771c0a R12: 0000000000000000
R13: 0000000000001cf0 R14: ffff888111a9c568 R15: 0000000000000039
do_check_common+0x11c3/0x1970 kernel/bpf/verifier.c:14940
do_check_main kernel/bpf/verifier.c:15003 [inline]
bpf_check+0xa04e/0x10e90 kernel/bpf/verifier.c:15580
bpf_prog_load+0x10f4/0x1670 kernel/bpf/syscall.c:2624
__sys_bpf+0x57b/0x850 kernel/bpf/syscall.c:5006
__do_sys_bpf kernel/bpf/syscall.c:5110 [inline]
__se_sys_bpf kernel/bpf/syscall.c:5108 [inline]
__x64_sys_bpf+0x7c/0x90 kernel/bpf/syscall.c:5108
x64_sys_call+0x488/0x9a0 arch/x86/include/generated/asm/syscalls_64.h:322
do_syscall_x64 arch/x86/entry/common.c:46 [inline]
do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:76
entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7f25b419f559
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f25b5107028 EFLAGS: 00000246 ORIG_RAX: 0000000000000141
RAX: ffffffffffffffda RBX: 00007f25b4425fa0 RCX: 00007f25b419f559
RDX: 0000000000000048 RSI: 00002000000000c0 RDI: 0000000000000005
RBP: 00007f25b4236b20 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f25b4426038 R14: 00007f25b4425fa0 R15: 00007ffd78221908
The buggy address belongs to the variable:
.str.41+0x10/0x40
The buggy address belongs to the physical page:
page:ffffea0000179a40 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x5e69
flags: 0x1000(reserved|zone=0)
raw: 0000000000001000 ffffea0000179a48 ffffea0000179a48 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:
ffffffff85e69000: f9 f9 f9 f9 00 00 00 f9 f9 f9 f9 f9 00 00 00 00
ffffffff85e69080: 00 00 00 f9 f9 f9 f9 f9 00 00 00 00 00 00 00 00
>ffffffff85e69100: 04 f9 f9 f9 f9 f9 f9 f9 00 00 01 f9 f9 f9 f9 f9
^
ffffffff85e69180: 00 00 05 f9 f9 f9 f9 f9 00 00 00 00 06 f9 f9 f9
ffffffff85e69200: f9 f9 f9 f9 00 02 f9 f9 00 00 00 00 06 f9 f9 f9
==================================================================
aiptek 1-1:0.0: aiptek_irq - usb_submit_urb failed with result -19
----------------
Code disassembly (best guess), 2 bytes skipped:
0: 00 00 add %al,(%rax)
2: c7 44 24 10 f8 ff ff movl $0xfffffff8,0x10(%rsp)
9: ff
a: 41 bd 70 00 00 00 mov $0x70,%r13d
10: 45 31 ff xor %r15d,%r15d
13: 4c 89 f0 mov %r14,%rax
16: 48 c1 e8 03 shr $0x3,%rax
1a: 48 b9 00 00 00 00 00 movabs $0xdffffc0000000000,%rcx
21: fc ff df
24: 80 3c 08 00 cmpb $0x0,(%rax,%rcx,1)
* 28: 74 08 je 0x32 <-- trapping instruction
2a: 4c 89 f7 mov %r14,%rdi
2d: e8 47 97 30 00 call 0x309779
32: 4c 89 f3 mov %r14,%rbx
35: 4d 8b 36 mov (%r14),%r14
38: 4b 8d 7c 35 0f lea 0xf(%r13,%r14,1),%rdi
3d: 48 rex.W