================================================================================
UBSAN: array-index-out-of-bounds in drivers/input/tablet/aiptek.c:741:31
index 265 is out of range for type 'const int[34]'
CPU: 0 PID: 14 Comm: kworker/0:1 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026
Workqueue: usb_hub_wq hub_event
Call Trace:
dump_stack_lvl+0x188/0x24e lib/dump_stack.c:106
ubsan_epilogue+0xa/0x30 lib/ubsan.c:151
__ubsan_handle_out_of_bounds+0xdf/0xf0 lib/ubsan.c:282
aiptek_irq+0x1e87/0x28f0 drivers/input/tablet/aiptek.c:741
__usb_hcd_giveback_urb+0x35d/0x520 drivers/usb/core/hcd.c:1673
dummy_timer+0xa21/0x3420 drivers/usb/gadget/udc/dummy_hcd.c:2004
__run_hrtimer kernel/time/hrtimer.c:1751 [inline]
__hrtimer_run_queues+0x522/0xc90 kernel/time/hrtimer.c:1815
hrtimer_run_softirq+0x173/0x290 kernel/time/hrtimer.c:1832
handle_softirqs+0x291/0x910 kernel/softirq.c:596
__do_softirq kernel/softirq.c:630 [inline]
invoke_softirq kernel/softirq.c:470 [inline]
__irq_exit_rcu+0x13b/0x230 kernel/softirq.c:679
irq_exit_rcu+0x5/0x20 kernel/softirq.c:691
instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1118 [inline]
sysvec_apic_timer_interrupt+0xa0/0xc0 arch/x86/kernel/apic/apic.c:1118
asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:691
RIP: 0010:raw_spin_rq_unlock_irq+0x13/0x90 kernel/sched/sched.h:1375
Code: 38 c1 7c d2 e8 6e 73 78 00 eb cb 0f 0b 66 2e 0f 1f 84 00 00 00 00 00 41 57 41 56 53 66 90 e8 c4 91 df 08 e8 7f b2 2d 00 fb 5b <41> 5e 41 5f c3 49 be 00 00 00 00 00 fc ff df 49 89 ff 48 8d 9f 58
RSP: 0018:ffffc90000136448 EFLAGS: 00000286
RAX: 05769c468b55a900 RBX: ffff8880b8e3add4 RCX: 05769c468b55a900
RDX: dffffc0000000000 RSI: ffffffff8a8c17a0 RDI: ffffffff8adf42e0
RBP: ffffc900001365f0 R08: ffffffff90b10267 R09: 1ffffffff216204c
R10: dffffc0000000000 R11: fffffbfff216204d R12: ffff88813fef1e00
R13: dffffc0000000000 R14: ffff88813fef1e00 R15: ffff8880b8e3ad00
__schedule+0x130a/0x4030 kernel/sched/core.c:6568
preempt_schedule_common+0x82/0xd0 kernel/sched/core.c:6731
preempt_schedule+0xbc/0xd0 kernel/sched/core.c:6755
preempt_schedule_thunk+0x16/0x18 arch/x86/entry/thunk_64.S:34
unwind_next_frame+0x172b/0x1fd0 arch/x86/kernel/unwind_orc.c:629
arch_stack_walk+0x10c/0x140 arch/x86/kernel/stacktrace.c:25
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_slab_alloc+0x6b/0x80 mm/kasan/common.c:329
kasan_slab_alloc include/linux/kasan.h:201 [inline]
slab_post_alloc_hook+0x4b/0x490 mm/slab.h:737
slab_alloc_node mm/slub.c:3359 [inline]
kmem_cache_alloc_node+0x1ad/0x310 mm/slub.c:3404
__alloc_skb+0xf9/0x7d0 net/core/skbuff.c:505
alloc_skb include/linux/skbuff.h:1303 [inline]
alloc_uevent_skb+0x7d/0x230 lib/kobject_uevent.c:290
uevent_net_broadcast_untagged lib/kobject_uevent.c:326 [inline]
kobject_uevent_net_broadcast+0x2e6/0x530 lib/kobject_uevent.c:409
kobject_uevent_env+0x555/0x890 lib/kobject_uevent.c:608
device_add+0xac2/0x1050 drivers/base/core.c:3678
cdev_device_add+0x19d/0x340 fs/char_dev.c:549
mousedev_create+0x56a/0x690 drivers/input/mousedev.c:907
mousedev_connect+0x22/0x3a0 drivers/input/mousedev.c:981
input_attach_handler drivers/input/input.c:1060 [inline]
input_register_device+0xd91/0x12d0 drivers/input/input.c:2470
aiptek_probe+0x14a1/0x1ba0 drivers/input/tablet/aiptek.c:1845
usb_probe_interface+0x5be/0xae0 drivers/usb/core/driver.c:396
call_driver_probe drivers/base/dd.c:-1 [inline]
really_probe+0x24a/0xb40 drivers/base/dd.c:639
__driver_probe_device+0x1f5/0x390 drivers/base/dd.c:805
driver_probe_device+0x4f/0x420 drivers/base/dd.c:835
__device_attach_driver+0x2c6/0x510 drivers/base/dd.c:963
bus_for_each_drv+0x184/0x210 drivers/base/bus.c:429
__device_attach+0x2a7/0x480 drivers/base/dd.c:1035
bus_probe_device+0xba/0x1d0 drivers/base/bus.c:489
device_add+0xbcf/0x1050 drivers/base/core.c:3712
usb_set_configuration+0x19d5/0x2030 drivers/usb/core/message.c:2223
usb_generic_driver_probe+0x89/0x150 drivers/usb/core/generic.c:238
usb_probe_device+0x126/0x250 drivers/usb/core/driver.c:293
call_driver_probe drivers/base/dd.c:-1 [inline]
really_probe+0x24a/0xb40 drivers/base/dd.c:639
__driver_probe_device+0x1f5/0x390 drivers/base/dd.c:805
driver_probe_device+0x4f/0x420 drivers/base/dd.c:835
__device_attach_driver+0x2c6/0x510 drivers/base/dd.c:963
bus_for_each_drv+0x184/0x210 drivers/base/bus.c:429
__device_attach+0x2a7/0x480 drivers/base/dd.c:1035
bus_probe_device+0xba/0x1d0 drivers/base/bus.c:489
device_add+0xbcf/0x1050 drivers/base/core.c:3712
usb_new_device+0xa01/0x15e0 drivers/usb/core/hub.c:2659
hub_port_connect drivers/usb/core/hub.c:5517 [inline]
hub_port_connect_change drivers/usb/core/hub.c:5657 [inline]
port_event drivers/usb/core/hub.c:5817 [inline]
hub_event+0x2b2f/0x5200 drivers/usb/core/hub.c:5899
process_one_work+0x8ab/0x1160 kernel/workqueue.c:2292
process_scheduled_works kernel/workqueue.c:2355 [inline]
worker_thread+0xd6e/0x12a0 kernel/workqueue.c:2441
kthread+0x29d/0x330 kernel/kthread.c:376
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295
================================================================================
----------------
Code disassembly (best guess):
0: 38 c1 cmp %al,%cl
2: 7c d2 jl 0xffffffd6
4: e8 6e 73 78 00 call 0x787377
9: eb cb jmp 0xffffffd6
b: 0f 0b ud2
d: 66 2e 0f 1f 84 00 00 cs nopw 0x0(%rax,%rax,1)
14: 00 00 00
17: 41 57 push %r15
19: 41 56 push %r14
1b: 53 push %rbx
1c: 66 90 xchg %ax,%ax
1e: e8 c4 91 df 08 call 0x8df91e7
23: e8 7f b2 2d 00 call 0x2db2a7
28: fb sti
29: 5b pop %rbx
* 2a: 41 5e pop %r14 <-- trapping instruction
2c: 41 5f pop %r15
2e: c3 ret
2f: 49 be 00 00 00 00 00 movabs $0xdffffc0000000000,%r14
36: fc ff df
39: 49 89 ff mov %rdi,%r15
3c: 48 rex.W
3d: 8d .byte 0x8d
3e: 9f lahf
3f: 58 pop %rax