================================================================================
UBSAN: array-index-out-of-bounds in drivers/input/tablet/aiptek.c:741:31
index 64046 is out of range for type 'const int[34]'
CPU: 0 PID: 103 Comm: udevd Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
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+0x208d/0x29b0 drivers/input/tablet/aiptek.c:741
__usb_hcd_giveback_urb+0x364/0x520 drivers/usb/core/hcd.c:1675
usb_hcd_giveback_urb+0x11c/0x410 drivers/usb/core/hcd.c:1758
dummy_timer+0x88c/0x3070 drivers/usb/gadget/udc/dummy_hcd.c:2004
__run_hrtimer kernel/time/hrtimer.c:1685 [inline]
__hrtimer_run_queues+0x3bb/0x8e0 kernel/time/hrtimer.c:1749
hrtimer_run_softirq+0x19b/0x260 kernel/time/hrtimer.c:1766
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:get_stack_info+0xcf/0xf0 arch/x86/kernel/dumpstack_64.c:213
Code: 13 0b 87 4c 89 e2 e8 b0 04 63 01 31 c0 4d 0f a3 e5 72 9f 45 8b 36 49 83 fe 40 73 10 ba 01 00 00 00 44 89 f1 48 d3 e2 48 09 13 a8 be 01 00 00 00 48 c7 c7 10 14 0b 87 4c 89 f2 e8 7b 04 63 01
RSP: 0018:ffffc90000a07398 EFLAGS: 00000202
RAX: 0000000000000000 RBX: ffffc90000a07468 RCX: 0000000000000001
RDX: 0000000000000002 RSI: ffffc90000a08000 RDI: ffffc90000a07438
RBP: ffffc90000a073c0 R08: ffffc90000a07401 R09: ffffc90000a07448
R10: dffffc0000000000 R11: fffff52000140e95 R12: 0000000000000001
R13: 0000000000000000 R14: 0000000000000001 R15: ffff888111075100
__unwind_start+0x1e2/0x3a0 arch/x86/kernel/unwind_frame.c:405
unwind_start arch/x86/include/asm/unwind.h:64 [inline]
arch_stack_walk+0xe4/0x150 arch/x86/kernel/stacktrace.c:24
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_alloc_info+0x25/0x30 mm/kasan/generic.c:505
__kasan_slab_alloc+0x72/0x80 mm/kasan/common.c:334
kasan_slab_alloc include/linux/kasan.h:202 [inline]
slab_post_alloc_hook+0x4f/0x2d0 mm/slab.h:768
slab_alloc_node mm/slub.c:3382 [inline]
slab_alloc mm/slub.c:3392 [inline]
__kmem_cache_alloc_lru mm/slub.c:3399 [inline]
kmem_cache_alloc+0x16e/0x330 mm/slub.c:3408
kmem_cache_zalloc include/linux/slab.h:689 [inline]
lsm_file_alloc security/security.c:576 [inline]
security_file_alloc+0x33/0x130 security/security.c:1544
__alloc_file+0xb5/0x2a0 fs/file_table.c:143
alloc_empty_file+0x97/0x180 fs/file_table.c:187
path_openat+0xf5/0x2f80 fs/namei.c:3776
do_filp_open+0x1f1/0x430 fs/namei.c:3817
do_sys_openat2+0x15e/0x810 fs/open.c:1343
do_sys_open fs/open.c:1359 [inline]
__do_sys_openat fs/open.c:1375 [inline]
__se_sys_openat fs/open.c:1370 [inline]
__x64_sys_openat+0x136/0x160 fs/open.c:1370
x64_sys_call+0x783/0x9a0 arch/x86/include/generated/asm/syscalls_64.h:258
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: 0033:0x7f3b44aa7407
Code: 48 89 fa 4c 89 df e8 38 aa 00 00 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 1a 5b c3 0f 1f 84 00 00 00 00 00 48 8b 44 24 10 0f 05 <5b> c3 0f 1f 80 00 00 00 00 83 e2 39 83 fa 08 75 de e8 23 ff ff ff
RSP: 002b:00007ffe8d1f7d20 EFLAGS: 00000202 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 00007f3b45189880 RCX: 00007f3b44aa7407
RDX: 0000000000080141 RSI: 000056040966602e RDI: ffffffffffffff9c
RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
R10: 00000000000001a4 R11: 0000000000000202 R12: 00000000ffffffff
R13: 00000000ffffffff R14: ffffffffffffffff R15: 0000000000000000
================================================================================
==================================================================
BUG: KASAN: global-out-of-bounds in aiptek_irq+0x20ab/0x29b0 drivers/input/tablet/aiptek.c:741
Read of size 4 at addr ffffffff85ea8e78 by task udevd/103
CPU: 0 PID: 103 Comm: udevd Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
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+0x20ab/0x29b0 drivers/input/tablet/aiptek.c:741
__usb_hcd_giveback_urb+0x364/0x520 drivers/usb/core/hcd.c:1675
usb_hcd_giveback_urb+0x11c/0x410 drivers/usb/core/hcd.c:1758
dummy_timer+0x88c/0x3070 drivers/usb/gadget/udc/dummy_hcd.c:2004
__run_hrtimer kernel/time/hrtimer.c:1685 [inline]
__hrtimer_run_queues+0x3bb/0x8e0 kernel/time/hrtimer.c:1749
hrtimer_run_softirq+0x19b/0x260 kernel/time/hrtimer.c:1766
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:get_stack_info+0xcf/0xf0 arch/x86/kernel/dumpstack_64.c:213
Code: 13 0b 87 4c 89 e2 e8 b0 04 63 01 31 c0 4d 0f a3 e5 72 9f 45 8b 36 49 83 fe 40 73 10 ba 01 00 00 00 44 89 f1 48 d3 e2 48 09 13 a8 be 01 00 00 00 48 c7 c7 10 14 0b 87 4c 89 f2 e8 7b 04 63 01
RSP: 0018:ffffc90000a07398 EFLAGS: 00000202
RAX: 0000000000000000 RBX: ffffc90000a07468 RCX: 0000000000000001
RDX: 0000000000000002 RSI: ffffc90000a08000 RDI: ffffc90000a07438
RBP: ffffc90000a073c0 R08: ffffc90000a07401 R09: ffffc90000a07448
R10: dffffc0000000000 R11: fffff52000140e95 R12: 0000000000000001
R13: 0000000000000000 R14: 0000000000000001 R15: ffff888111075100
__unwind_start+0x1e2/0x3a0 arch/x86/kernel/unwind_frame.c:405
unwind_start arch/x86/include/asm/unwind.h:64 [inline]
arch_stack_walk+0xe4/0x150 arch/x86/kernel/stacktrace.c:24
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_alloc_info+0x25/0x30 mm/kasan/generic.c:505
__kasan_slab_alloc+0x72/0x80 mm/kasan/common.c:334
kasan_slab_alloc include/linux/kasan.h:202 [inline]
slab_post_alloc_hook+0x4f/0x2d0 mm/slab.h:768
slab_alloc_node mm/slub.c:3382 [inline]
slab_alloc mm/slub.c:3392 [inline]
__kmem_cache_alloc_lru mm/slub.c:3399 [inline]
kmem_cache_alloc+0x16e/0x330 mm/slub.c:3408
kmem_cache_zalloc include/linux/slab.h:689 [inline]
lsm_file_alloc security/security.c:576 [inline]
security_file_alloc+0x33/0x130 security/security.c:1544
__alloc_file+0xb5/0x2a0 fs/file_table.c:143
alloc_empty_file+0x97/0x180 fs/file_table.c:187
path_openat+0xf5/0x2f80 fs/namei.c:3776
do_filp_open+0x1f1/0x430 fs/namei.c:3817
do_sys_openat2+0x15e/0x810 fs/open.c:1343
do_sys_open fs/open.c:1359 [inline]
__do_sys_openat fs/open.c:1375 [inline]
__se_sys_openat fs/open.c:1370 [inline]
__x64_sys_openat+0x136/0x160 fs/open.c:1370
x64_sys_call+0x783/0x9a0 arch/x86/include/generated/asm/syscalls_64.h:258
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: 0033:0x7f3b44aa7407
Code: 48 89 fa 4c 89 df e8 38 aa 00 00 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 1a 5b c3 0f 1f 84 00 00 00 00 00 48 8b 44 24 10 0f 05 <5b> c3 0f 1f 80 00 00 00 00 83 e2 39 83 fa 08 75 de e8 23 ff ff ff
RSP: 002b:00007ffe8d1f7d20 EFLAGS: 00000202 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 00007f3b45189880 RCX: 00007f3b44aa7407
RDX: 0000000000080141 RSI: 000056040966602e RDI: ffffffffffffff9c
RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
R10: 00000000000001a4 R11: 0000000000000202 R12: 00000000ffffffff
R13: 00000000ffffffff R14: ffffffffffffffff R15: 0000000000000000
The buggy address belongs to the variable:
.str.64+0x58/0x80
The buggy address belongs to the physical page:
page:ffffea000017aa00 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x5ea8
flags: 0x1000(reserved|zone=0)
raw: 0000000000001000 ffffea000017aa08 ffffea000017aa08 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:
ffffffff85ea8d00: 07 f9 f9 f9 00 00 00 00 00 00 00 00 04 f9 f9 f9
ffffffff85ea8d80: f9 f9 f9 f9 00 00 00 00 00 00 00 00 05 f9 f9 f9
>ffffffff85ea8e00: f9 f9 f9 f9 00 00 00 00 00 00 00 00 01 f9 f9 f9
^
ffffffff85ea8e80: f9 f9 f9 f9 00 00 00 00 00 00 00 00 05 f9 f9 f9
ffffffff85ea8f00: f9 f9 f9 f9 00 00 00 00 00 00 00 00 00 00 00 00
==================================================================
================================================================================
UBSAN: array-index-out-of-bounds in drivers/input/tablet/aiptek.c:763:30
index 64047 is out of range for type 'const int[34]'
CPU: 0 PID: 103 Comm: udevd Tainted: G B syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
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+0x1f6d/0x29b0 drivers/input/tablet/aiptek.c:763
__usb_hcd_giveback_urb+0x364/0x520 drivers/usb/core/hcd.c:1675
usb_hcd_giveback_urb+0x11c/0x410 drivers/usb/core/hcd.c:1758
dummy_timer+0x88c/0x3070 drivers/usb/gadget/udc/dummy_hcd.c:2004
__run_hrtimer kernel/time/hrtimer.c:1685 [inline]
__hrtimer_run_queues+0x3bb/0x8e0 kernel/time/hrtimer.c:1749
hrtimer_run_softirq+0x19b/0x260 kernel/time/hrtimer.c:1766
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:get_stack_info+0xcf/0xf0 arch/x86/kernel/dumpstack_64.c:213
Code: 13 0b 87 4c 89 e2 e8 b0 04 63 01 31 c0 4d 0f a3 e5 72 9f 45 8b 36 49 83 fe 40 73 10 ba 01 00 00 00 44 89 f1 48 d3 e2 48 09 13 a8 be 01 00 00 00 48 c7 c7 10 14 0b 87 4c 89 f2 e8 7b 04 63 01
RSP: 0018:ffffc90000a07398 EFLAGS: 00000202
RAX: 0000000000000000 RBX: ffffc90000a07468 RCX: 0000000000000001
RDX: 0000000000000002 RSI: ffffc90000a08000 RDI: ffffc90000a07438
RBP: ffffc90000a073c0 R08: ffffc90000a07401 R09: ffffc90000a07448
R10: dffffc0000000000 R11: fffff52000140e95 R12: 0000000000000001
R13: 0000000000000000 R14: 0000000000000001 R15: ffff888111075100
__unwind_start+0x1e2/0x3a0 arch/x86/kernel/unwind_frame.c:405
unwind_start arch/x86/include/asm/unwind.h:64 [inline]
arch_stack_walk+0xe4/0x150 arch/x86/kernel/stacktrace.c:24
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_alloc_info+0x25/0x30 mm/kasan/generic.c:505
__kasan_slab_alloc+0x72/0x80 mm/kasan/common.c:334
kasan_slab_alloc include/linux/kasan.h:202 [inline]
slab_post_alloc_hook+0x4f/0x2d0 mm/slab.h:768
slab_alloc_node mm/slub.c:3382 [inline]
slab_alloc mm/slub.c:3392 [inline]
__kmem_cache_alloc_lru mm/slub.c:3399 [inline]
kmem_cache_alloc+0x16e/0x330 mm/slub.c:3408
kmem_cache_zalloc include/linux/slab.h:689 [inline]
lsm_file_alloc security/security.c:576 [inline]
security_file_alloc+0x33/0x130 security/security.c:1544
__alloc_file+0xb5/0x2a0 fs/file_table.c:143
alloc_empty_file+0x97/0x180 fs/file_table.c:187
path_openat+0xf5/0x2f80 fs/namei.c:3776
do_filp_open+0x1f1/0x430 fs/namei.c:3817
do_sys_openat2+0x15e/0x810 fs/open.c:1343
do_sys_open fs/open.c:1359 [inline]
__do_sys_openat fs/open.c:1375 [inline]
__se_sys_openat fs/open.c:1370 [inline]
__x64_sys_openat+0x136/0x160 fs/open.c:1370
x64_sys_call+0x783/0x9a0 arch/x86/include/generated/asm/syscalls_64.h:258
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: 0033:0x7f3b44aa7407
Code: 48 89 fa 4c 89 df e8 38 aa 00 00 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 1a 5b c3 0f 1f 84 00 00 00 00 00 48 8b 44 24 10 0f 05 <5b> c3 0f 1f 80 00 00 00 00 83 e2 39 83 fa 08 75 de e8 23 ff ff ff
RSP: 002b:00007ffe8d1f7d20 EFLAGS: 00000202 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 00007f3b45189880 RCX: 00007f3b44aa7407
RDX: 0000000000080141 RSI: 000056040966602e RDI: ffffffffffffff9c
RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
R10: 00000000000001a4 R11: 0000000000000202 R12: 00000000ffffffff
R13: 00000000ffffffff R14: ffffffffffffffff R15: 0000000000000000
================================================================================
aiptek 9-1:0.0: aiptek_irq - usb_submit_urb failed with result -19
----------------
Code disassembly (best guess):
0: 13 0b adc (%rbx),%ecx
2: 87 4c 89 e2 xchg %ecx,-0x1e(%rcx,%rcx,4)
6: e8 b0 04 63 01 call 0x16304bb
b: 31 c0 xor %eax,%eax
d: 4d 0f a3 e5 bt %r12,%r13
11: 72 9f jb 0xffffffb2
13: 45 8b 36 mov (%r14),%r14d
16: 49 83 fe 40 cmp $0x40,%r14
1a: 73 10 jae 0x2c
1c: ba 01 00 00 00 mov $0x1,%edx
21: 44 89 f1 mov %r14d,%ecx
24: 48 d3 e2 shl %cl,%rdx
27: 48 09 13 or %rdx,(%rbx)
* 2a: eb a8 jmp 0xffffffd4 <-- trapping instruction
2c: be 01 00 00 00 mov $0x1,%esi
31: 48 c7 c7 10 14 0b 87 mov $0xffffffff870b1410,%rdi
38: 4c 89 f2 mov %r14,%rdx
3b: e8 7b 04 63 01 call 0x16304bb