------------[ cut here ]------------
UBSAN: array-index-out-of-bounds in drivers/input/tablet/aiptek.c:741:31
index 48187 is out of range for type 'const int[34]'
CPU: 0 UID: 0 PID: 296 Comm: syz-executor Not tainted syzkaller #0 5b18096d2acadad9f3a622c0de28b00c51d60767
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
Call Trace:
__dump_stack+0x21/0x30 lib/dump_stack.c:94
dump_stack_lvl+0x140/0x1c0 lib/dump_stack.c:120
dump_stack+0x19/0x20 lib/dump_stack.c:129
ubsan_epilogue+0xe/0x40 lib/ubsan.c:231
__ubsan_handle_out_of_bounds+0xe8/0xf0 lib/ubsan.c:429
aiptek_irq+0x208d/0x2a00 drivers/input/tablet/aiptek.c:741
__usb_hcd_giveback_urb+0x371/0x530 drivers/usb/core/hcd.c:1648
usb_hcd_giveback_urb+0x12b/0x400 drivers/usb/core/hcd.c:1732
dummy_timer+0xa3f/0x4900 drivers/usb/gadget/udc/dummy_hcd.c:2003
__run_hrtimer kernel/time/hrtimer.c:1758 [inline]
__hrtimer_run_queues+0x3ae/0x8e0 kernel/time/hrtimer.c:1822
hrtimer_run_softirq+0x159/0x560 kernel/time/hrtimer.c:1839
handle_softirqs+0x1aa/0x620 kernel/softirq.c:621
__do_softirq kernel/softirq.c:659 [inline]
invoke_softirq kernel/softirq.c:476 [inline]
__irq_exit_rcu+0x47/0xb0 kernel/softirq.c:708
irq_exit_rcu+0xd/0x30 kernel/softirq.c:720
instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1049 [inline]
sysvec_apic_timer_interrupt+0x82/0x90 arch/x86/kernel/apic/apic.c:1049
asm_sysvec_apic_timer_interrupt+0x1f/0x30 arch/x86/include/asm/idtentry.h:702
RIP: 0010:stack_trace_consume_entry+0xea/0x2a0 kernel/stacktrace.c:93
Code: 6a 00 4c 8b 55 d0 4d 89 f1 4c 8b 45 c8 4c 89 e2 4c 89 ff 48 8b 75 c0 4c 8b 37 45 8d 7a 01 0f b6 04 13 84 c0 0f 85 4a 01 00 00 <45> 89 38 4f 8d 3c d6 4c 89 f8 48 c1 e8 03 80 3c 10 00 74 1e 4c 89
RSP: 0018:ffffc9000111f910 EFLAGS: 00000246
RAX: 0000000000000000 RBX: 1ffff92000223f46 RCX: 0000000000223f00
RDX: dffffc0000000000 RSI: ffffffff85a4ba27 RDI: ffffc9000111fa20
RBP: ffffc9000111f958 R08: ffffc9000111fa30 R09: ffffc9000111fa28
R10: 000000000000000a R11: ffffffff8175a5e0 R12: ffffc9000111fa2c
R13: 1ffff92000223f45 R14: ffffc9000111fab0 R15: 000000000000000b
arch_stack_walk+0x129/0x170 arch/x86/kernel/stacktrace.c:27
stack_trace_save+0xaa/0x100 kernel/stacktrace.c:122
kasan_save_stack mm/kasan/common.c:49 [inline]
kasan_save_track+0x3e/0x80 mm/kasan/common.c:70
kasan_save_alloc_info+0x3a/0x50 mm/kasan/generic.c:565
poison_kmalloc_redzone mm/kasan/common.c:379 [inline]
__kasan_kmalloc+0x96/0xb0 mm/kasan/common.c:396
kasan_kmalloc include/linux/kasan.h:261 [inline]
__kmalloc_cache_noprof+0x23c/0x470 mm/slub.c:4426
kmalloc_noprof include/linux/slab.h:882 [inline]
slab_free_hook mm/slub.c:2397 [inline]
slab_free mm/slub.c:4714 [inline]
kmem_cache_free+0x18d/0x4f0 mm/slub.c:4825
file_free fs/file_table.c:78 [inline]
__fput+0x71e/0xa30 fs/file_table.c:460
__fput_sync+0x4a/0x70 fs/file_table.c:532
__do_sys_close fs/open.c:1586 [inline]
__se_sys_close+0x172/0x1f0 fs/open.c:1571
__x64_sys_close+0x3c/0x60 fs/open.c:1571
x64_sys_call+0x2560/0x2ee0 arch/x86/include/generated/asm/syscalls_64.h:4
do_syscall_x64 arch/x86/entry/common.c:47 [inline]
do_syscall_64+0x57/0xf0 arch/x86/entry/common.c:78
entry_SYSCALL_64_after_hwframe+0x76/0x7e
RIP: 0033:0x7f9a257592d7
Code: 48 89 fa 4c 89 df e8 a8 56 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:00007ffcfa957300 EFLAGS: 00000202 ORIG_RAX: 0000000000000003
RAX: ffffffffffffffda RBX: 00005555655d2500 RCX: 00007f9a257592d7
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000009
RBP: 00007ffcfa957400 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffcfa9584f0
R13: 00007f9a25834474 R14: 00005555655d24e8 R15: 0000000000000009
---[ end trace ]---
------------[ cut here ]------------
UBSAN: array-index-out-of-bounds in drivers/input/tablet/aiptek.c:763:30
index 48188 is out of range for type 'const int[34]'
CPU: 0 UID: 0 PID: 296 Comm: syz-executor Not tainted syzkaller #0 5b18096d2acadad9f3a622c0de28b00c51d60767
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
Call Trace:
__dump_stack+0x21/0x30 lib/dump_stack.c:94
dump_stack_lvl+0x140/0x1c0 lib/dump_stack.c:120
dump_stack+0x19/0x20 lib/dump_stack.c:129
ubsan_epilogue+0xe/0x40 lib/ubsan.c:231
__ubsan_handle_out_of_bounds+0xe8/0xf0 lib/ubsan.c:429
aiptek_irq+0x1f3c/0x2a00 drivers/input/tablet/aiptek.c:763
__usb_hcd_giveback_urb+0x371/0x530 drivers/usb/core/hcd.c:1648
usb_hcd_giveback_urb+0x12b/0x400 drivers/usb/core/hcd.c:1732
dummy_timer+0xa3f/0x4900 drivers/usb/gadget/udc/dummy_hcd.c:2003
__run_hrtimer kernel/time/hrtimer.c:1758 [inline]
__hrtimer_run_queues+0x3ae/0x8e0 kernel/time/hrtimer.c:1822
hrtimer_run_softirq+0x159/0x560 kernel/time/hrtimer.c:1839
handle_softirqs+0x1aa/0x620 kernel/softirq.c:621
__do_softirq kernel/softirq.c:659 [inline]
invoke_softirq kernel/softirq.c:476 [inline]
__irq_exit_rcu+0x47/0xb0 kernel/softirq.c:708
irq_exit_rcu+0xd/0x30 kernel/softirq.c:720
instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1049 [inline]
sysvec_apic_timer_interrupt+0x82/0x90 arch/x86/kernel/apic/apic.c:1049
asm_sysvec_apic_timer_interrupt+0x1f/0x30 arch/x86/include/asm/idtentry.h:702
RIP: 0010:stack_trace_consume_entry+0xea/0x2a0 kernel/stacktrace.c:93
Code: 6a 00 4c 8b 55 d0 4d 89 f1 4c 8b 45 c8 4c 89 e2 4c 89 ff 48 8b 75 c0 4c 8b 37 45 8d 7a 01 0f b6 04 13 84 c0 0f 85 4a 01 00 00 <45> 89 38 4f 8d 3c d6 4c 89 f8 48 c1 e8 03 80 3c 10 00 74 1e 4c 89
RSP: 0018:ffffc9000111f910 EFLAGS: 00000246
RAX: 0000000000000000 RBX: 1ffff92000223f46 RCX: 0000000000223f00
RDX: dffffc0000000000 RSI: ffffffff85a4ba27 RDI: ffffc9000111fa20
RBP: ffffc9000111f958 R08: ffffc9000111fa30 R09: ffffc9000111fa28
R10: 000000000000000a R11: ffffffff8175a5e0 R12: ffffc9000111fa2c
R13: 1ffff92000223f45 R14: ffffc9000111fab0 R15: 000000000000000b
arch_stack_walk+0x129/0x170 arch/x86/kernel/stacktrace.c:27
stack_trace_save+0xaa/0x100 kernel/stacktrace.c:122
kasan_save_stack mm/kasan/common.c:49 [inline]
kasan_save_track+0x3e/0x80 mm/kasan/common.c:70
kasan_save_alloc_info+0x3a/0x50 mm/kasan/generic.c:565
poison_kmalloc_redzone mm/kasan/common.c:379 [inline]
__kasan_kmalloc+0x96/0xb0 mm/kasan/common.c:396
kasan_kmalloc include/linux/kasan.h:261 [inline]
__kmalloc_cache_noprof+0x23c/0x470 mm/slub.c:4426
kmalloc_noprof include/linux/slab.h:882 [inline]
slab_free_hook mm/slub.c:2397 [inline]
slab_free mm/slub.c:4714 [inline]
kmem_cache_free+0x18d/0x4f0 mm/slub.c:4825
file_free fs/file_table.c:78 [inline]
__fput+0x71e/0xa30 fs/file_table.c:460
__fput_sync+0x4a/0x70 fs/file_table.c:532
__do_sys_close fs/open.c:1586 [inline]
__se_sys_close+0x172/0x1f0 fs/open.c:1571
__x64_sys_close+0x3c/0x60 fs/open.c:1571
x64_sys_call+0x2560/0x2ee0 arch/x86/include/generated/asm/syscalls_64.h:4
do_syscall_x64 arch/x86/entry/common.c:47 [inline]
do_syscall_64+0x57/0xf0 arch/x86/entry/common.c:78
entry_SYSCALL_64_after_hwframe+0x76/0x7e
RIP: 0033:0x7f9a257592d7
Code: 48 89 fa 4c 89 df e8 a8 56 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:00007ffcfa957300 EFLAGS: 00000202 ORIG_RAX: 0000000000000003
RAX: ffffffffffffffda RBX: 00005555655d2500 RCX: 00007f9a257592d7
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000009
RBP: 00007ffcfa957400 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffcfa9584f0
R13: 00007f9a25834474 R14: 00005555655d24e8 R15: 0000000000000009
---[ end trace ]---
aiptek 4-1:0.0: aiptek_irq - usb_submit_urb failed with result -19
----------------
Code disassembly (best guess):
0: 6a 00 push $0x0
2: 4c 8b 55 d0 mov -0x30(%rbp),%r10
6: 4d 89 f1 mov %r14,%r9
9: 4c 8b 45 c8 mov -0x38(%rbp),%r8
d: 4c 89 e2 mov %r12,%rdx
10: 4c 89 ff mov %r15,%rdi
13: 48 8b 75 c0 mov -0x40(%rbp),%rsi
17: 4c 8b 37 mov (%rdi),%r14
1a: 45 8d 7a 01 lea 0x1(%r10),%r15d
1e: 0f b6 04 13 movzbl (%rbx,%rdx,1),%eax
22: 84 c0 test %al,%al
24: 0f 85 4a 01 00 00 jne 0x174
* 2a: 45 89 38 mov %r15d,(%r8) <-- trapping instruction
2d: 4f 8d 3c d6 lea (%r14,%r10,8),%r15
31: 4c 89 f8 mov %r15,%rax
34: 48 c1 e8 03 shr $0x3,%rax
38: 80 3c 10 00 cmpb $0x0,(%rax,%rdx,1)
3c: 74 1e je 0x5c
3e: 4c rex.WR
3f: 89 .byte 0x89