------------[ cut here ]------------
UBSAN: array-index-out-of-bounds in drivers/input/tablet/aiptek.c:741:31
index 2303 is out of range for type 'const int[34]'
CPU: 1 UID: 0 PID: 320 Comm: udevd Not tainted syzkaller #0 6d6f333215c564de92c741644a4b57c848379815
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/07/2026
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:1646
usb_hcd_giveback_urb+0x12b/0x400 drivers/usb/core/hcd.c:1730
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+0x1b0/0x5b0 kernel/softirq.c:684
__do_softirq kernel/softirq.c:722 [inline]
invoke_softirq kernel/softirq.c:539 [inline]
__irq_exit_rcu+0x47/0xb0 kernel/softirq.c:771
irq_exit_rcu+0xd/0x30 kernel/softirq.c:783
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:update_stack_state+0x37f/0x4d0 arch/x86/kernel/unwind_frame.c:244
Code: c1 e8 03 49 bf 00 00 00 00 00 fc ff df 42 80 3c 38 00 74 08 4c 89 f7 e8 4f 7d 9e 00 48 8b 45 98 49 89 06 49 89 c6 48 8b 45 a0 <42> 80 3c 38 00 48 8b 45 d0 4c 8d 60 58 74 08 4c 89 e7 e8 2a 7d 9e
RSP: 0018:ffffc9000b8478e8 EFLAGS: 00000246
RAX: 1ffff92001708f4c RBX: ffffc9000b847a10 RCX: ffffc9000b847f01
RDX: ffffc9000b847f10 RSI: 1ffff92001708f42 RDI: 0000000000000000
RBP: ffffc9000b847998 R08: ffffc9000b847ad0 R09: ffffc9000b847ac8
R10: 0000000000000007 R11: ffffffff81778d20 R12: ffffc9000b848000
R13: 1ffff92001708f49 R14: ffffc9000b847f10 R15: dffffc0000000000
unwind_next_frame+0x39e/0x6b0 arch/x86/kernel/unwind_frame.c:315
arch_stack_walk+0x138/0x170 arch/x86/kernel/stacktrace.c:25
stack_trace_save+0xaa/0x100 kernel/stacktrace.c:122
kasan_save_stack+0x3e/0x60 mm/kasan/common.c:49
__kasan_record_aux_stack+0xb2/0xd0 mm/kasan/generic.c:541
kasan_record_aux_stack_noalloc+0xf/0x20 mm/kasan/generic.c:551
slab_free_hook mm/slub.c:2406 [inline]
slab_free mm/slub.c:4716 [inline]
kmem_cache_free+0x49e/0x4f0 mm/slub.c:4827
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: 0033:0x7fb32a8a7407
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:00007ffe75a13e80 EFLAGS: 00000202 ORIG_RAX: 0000000000000003
RAX: ffffffffffffffda RBX: 00007fb32afe8880 RCX: 00007fb32a8a7407
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000008
RBP: 0000000000000008 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000202 R12: 000055b055504500
R13: 0000000000000019 R14: 00007ffe75a14360 R15: 00007ffe75a15bf0
---[ end trace ]---
------------[ cut here ]------------
UBSAN: array-index-out-of-bounds in drivers/input/tablet/aiptek.c:763:30
index 2304 is out of range for type 'const int[34]'
CPU: 1 UID: 0 PID: 320 Comm: udevd Not tainted syzkaller #0 6d6f333215c564de92c741644a4b57c848379815
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/07/2026
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:1646
usb_hcd_giveback_urb+0x12b/0x400 drivers/usb/core/hcd.c:1730
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+0x1b0/0x5b0 kernel/softirq.c:684
__do_softirq kernel/softirq.c:722 [inline]
invoke_softirq kernel/softirq.c:539 [inline]
__irq_exit_rcu+0x47/0xb0 kernel/softirq.c:771
irq_exit_rcu+0xd/0x30 kernel/softirq.c:783
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:update_stack_state+0x37f/0x4d0 arch/x86/kernel/unwind_frame.c:244
Code: c1 e8 03 49 bf 00 00 00 00 00 fc ff df 42 80 3c 38 00 74 08 4c 89 f7 e8 4f 7d 9e 00 48 8b 45 98 49 89 06 49 89 c6 48 8b 45 a0 <42> 80 3c 38 00 48 8b 45 d0 4c 8d 60 58 74 08 4c 89 e7 e8 2a 7d 9e
RSP: 0018:ffffc9000b8478e8 EFLAGS: 00000246
RAX: 1ffff92001708f4c RBX: ffffc9000b847a10 RCX: ffffc9000b847f01
RDX: ffffc9000b847f10 RSI: 1ffff92001708f42 RDI: 0000000000000000
RBP: ffffc9000b847998 R08: ffffc9000b847ad0 R09: ffffc9000b847ac8
R10: 0000000000000007 R11: ffffffff81778d20 R12: ffffc9000b848000
R13: 1ffff92001708f49 R14: ffffc9000b847f10 R15: dffffc0000000000
unwind_next_frame+0x39e/0x6b0 arch/x86/kernel/unwind_frame.c:315
arch_stack_walk+0x138/0x170 arch/x86/kernel/stacktrace.c:25
stack_trace_save+0xaa/0x100 kernel/stacktrace.c:122
kasan_save_stack+0x3e/0x60 mm/kasan/common.c:49
__kasan_record_aux_stack+0xb2/0xd0 mm/kasan/generic.c:541
kasan_record_aux_stack_noalloc+0xf/0x20 mm/kasan/generic.c:551
slab_free_hook mm/slub.c:2406 [inline]
slab_free mm/slub.c:4716 [inline]
kmem_cache_free+0x49e/0x4f0 mm/slub.c:4827
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: 0033:0x7fb32a8a7407
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:00007ffe75a13e80 EFLAGS: 00000202 ORIG_RAX: 0000000000000003
RAX: ffffffffffffffda RBX: 00007fb32afe8880 RCX: 00007fb32a8a7407
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000008
RBP: 0000000000000008 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000202 R12: 000055b055504500
R13: 0000000000000019 R14: 00007ffe75a14360 R15: 00007ffe75a15bf0
---[ end trace ]---
aiptek 4-1:0.0: aiptek_irq - usb_submit_urb failed with result -19
----------------
Code disassembly (best guess):
0: c1 e8 03 shr $0x3,%eax
3: 49 bf 00 00 00 00 00 movabs $0xdffffc0000000000,%r15
a: fc ff df
d: 42 80 3c 38 00 cmpb $0x0,(%rax,%r15,1)
12: 74 08 je 0x1c
14: 4c 89 f7 mov %r14,%rdi
17: e8 4f 7d 9e 00 call 0x9e7d6b
1c: 48 8b 45 98 mov -0x68(%rbp),%rax
20: 49 89 06 mov %rax,(%r14)
23: 49 89 c6 mov %rax,%r14
26: 48 8b 45 a0 mov -0x60(%rbp),%rax
* 2a: 42 80 3c 38 00 cmpb $0x0,(%rax,%r15,1) <-- trapping instruction
2f: 48 8b 45 d0 mov -0x30(%rbp),%rax
33: 4c 8d 60 58 lea 0x58(%rax),%r12
37: 74 08 je 0x41
39: 4c 89 e7 mov %r12,%rdi
3c: e8 .byte 0xe8
3d: 2a 7d 9e sub -0x62(%rbp),%bh