================================================================================
UBSAN: array-index-out-of-bounds in drivers/input/tablet/aiptek.c:741:31
index 2312 is out of range for type 'const int[34]'
CPU: 0 PID: 5857 Comm: kworker/0:8 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
Workqueue: usb_hub_wq hub_event
Call Trace:
dump_stack_lvl+0x18c/0x250 lib/dump_stack.c:106
ubsan_epilogue+0xa/0x30 lib/ubsan.c:217
__ubsan_handle_out_of_bounds+0xe3/0xf0 lib/ubsan.c:348
aiptek_irq+0x1eb8/0x2920 drivers/input/tablet/aiptek.c:741
__usb_hcd_giveback_urb+0x35d/0x520 drivers/usb/core/hcd.c:1648
dummy_timer+0xa58/0x34e0 drivers/usb/gadget/udc/dummy_hcd.c:2017
__run_hrtimer kernel/time/hrtimer.c:1754 [inline]
__hrtimer_run_queues+0x525/0xc10 kernel/time/hrtimer.c:1818
hrtimer_run_softirq+0x177/0x290 kernel/time/hrtimer.c:1835
handle_softirqs+0x27d/0x820 kernel/softirq.c:578
__do_softirq kernel/softirq.c:612 [inline]
invoke_softirq kernel/softirq.c:452 [inline]
__irq_exit_rcu+0xd3/0x190 kernel/softirq.c:661
irq_exit_rcu+0x9/0x20 kernel/softirq.c:673
instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1088 [inline]
sysvec_apic_timer_interrupt+0xa4/0xc0 arch/x86/kernel/apic/apic.c:1088
asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:687
RIP: 0010:__raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:152 [inline]
RIP: 0010:_raw_spin_unlock_irqrestore+0xc0/0x120 kernel/locking/spinlock.c:194
Code: c7 44 24 20 00 00 00 00 9c 8f 44 24 20 f7 44 24 20 00 02 00 00 41 c6 04 07 f8 75 4b f7 c3 00 02 00 00 74 01 fb bf 01 00 00 00 fb 4e c6 f6 65 8b 05 5c 1d 6d 75 85 c0 74 3c 48 c7 04 24 0e 36
RSP: 0018:ffffc90004b16820 EFLAGS: 00000206
RAX: dffffc0000000004 RBX: 0000000000000a02 RCX: 29aaff608fe75300
RDX: dffffc0000000000 RSI: ffffffff8acacbe0 RDI: 0000000000000001
RBP: ffffc90004b168b0 R08: ffffffff911eb53f R09: 1ffffffff223d6a7
R10: dffffc0000000000 R11: fffffbfff223d6a8 R12: dffffc0000000000
R13: ffff8880b8e3cfd8 R14: ffff88807da1a800 R15: 1ffff92000962d04
class_raw_spinlock_irqsave_destructor include/linux/spinlock.h:524 [inline]
try_to_wake_up+0x680/0x10e0 kernel/sched/core.c:4233
wake_up_process kernel/sched/core.c:4481 [inline]
wake_up_q+0xb6/0x100 kernel/sched/core.c:1032
rwsem_wake+0xeb/0x130 kernel/locking/rwsem.c:1214
__up_write kernel/locking/rwsem.c:1376 [inline]
up_write+0x1e0/0x410 kernel/locking/rwsem.c:1626
kernfs_add_one+0x149/0x6b0 fs/kernfs/dir.c:-1
kernfs_create_dir_ns+0xde/0x120 fs/kernfs/dir.c:1071
sysfs_create_dir_ns+0x130/0x2a0 fs/sysfs/dir.c:59
create_dir lib/kobject.c:73 [inline]
kobject_add_internal+0x617/0xc90 lib/kobject.c:240
kobject_add_varg lib/kobject.c:374 [inline]
kobject_add+0x164/0x240 lib/kobject.c:426
device_add+0x3fa/0xc40 drivers/base/core.c:3623
cdev_device_add+0x1c6/0x380 fs/char_dev.c:556
mousedev_create+0x56a/0x690 drivers/input/mousedev.c:907
mousedev_connect+0x26/0x3a0 drivers/input/mousedev.c:981
input_attach_handler drivers/input/input.c:1064 [inline]
input_register_device+0xcb0/0x1050 drivers/input/input.c:2470
aiptek_probe+0x1534/0x1c50 drivers/input/tablet/aiptek.c:1845
usb_probe_interface+0x5c2/0xaf0 drivers/usb/core/driver.c:396
call_driver_probe drivers/base/dd.c:-1 [inline]
really_probe+0x247/0xae0 drivers/base/dd.c:717
__driver_probe_device+0x1f5/0x390 drivers/base/dd.c:879
driver_probe_device+0x4f/0x420 drivers/base/dd.c:909
__device_attach_driver+0x2ca/0x510 drivers/base/dd.c:1037
bus_for_each_drv+0x252/0x2e0 drivers/base/bus.c:459
__device_attach+0x2c1/0x420 drivers/base/dd.c:1109
bus_probe_device+0x180/0x260 drivers/base/bus.c:580
device_add+0x87c/0xc40 drivers/base/core.c:3700
usb_set_configuration+0x1ad0/0x2150 drivers/usb/core/message.c:2265
usb_generic_driver_probe+0x8d/0x150 drivers/usb/core/generic.c:238
usb_probe_device+0x12a/0x260 drivers/usb/core/driver.c:293
call_driver_probe drivers/base/dd.c:-1 [inline]
really_probe+0x247/0xae0 drivers/base/dd.c:717
__driver_probe_device+0x1f5/0x390 drivers/base/dd.c:879
driver_probe_device+0x4f/0x420 drivers/base/dd.c:909
__device_attach_driver+0x2ca/0x510 drivers/base/dd.c:1037
bus_for_each_drv+0x252/0x2e0 drivers/base/bus.c:459
__device_attach+0x2c1/0x420 drivers/base/dd.c:1109
bus_probe_device+0x180/0x260 drivers/base/bus.c:580
device_add+0x87c/0xc40 drivers/base/core.c:3700
usb_new_device+0x995/0x1550 drivers/usb/core/hub.c:2660
hub_port_connect drivers/usb/core/hub.c:5529 [inline]
hub_port_connect_change drivers/usb/core/hub.c:5669 [inline]
port_event drivers/usb/core/hub.c:5833 [inline]
hub_event+0x29d5/0x4a80 drivers/usb/core/hub.c:5915
process_one_work kernel/workqueue.c:2657 [inline]
process_scheduled_works+0xa60/0x1600 kernel/workqueue.c:2734
worker_thread+0xa5e/0xfe0 kernel/workqueue.c:2815
kthread+0x2fa/0x390 kernel/kthread.c:388
ret_from_fork+0x48/0x80 arch/x86/kernel/process.c:152
ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:293
================================================================================
----------------
Code disassembly (best guess):
0: c7 44 24 20 00 00 00 movl $0x0,0x20(%rsp)
7: 00
8: 9c pushf
9: 8f 44 24 20 pop 0x20(%rsp)
d: f7 44 24 20 00 02 00 testl $0x200,0x20(%rsp)
14: 00
15: 41 c6 04 07 f8 movb $0xf8,(%r15,%rax,1)
1a: 75 4b jne 0x67
1c: f7 c3 00 02 00 00 test $0x200,%ebx
22: 74 01 je 0x25
24: fb sti
25: bf 01 00 00 00 mov $0x1,%edi
* 2a: e8 fb 4e c6 f6 call 0xf6c64f2a <-- trapping instruction
2f: 65 8b 05 5c 1d 6d 75 mov %gs:0x756d1d5c(%rip),%eax # 0x756d1d92
36: 85 c0 test %eax,%eax
38: 74 3c je 0x76
3a: 48 rex.W
3b: c7 .byte 0xc7
3c: 04 24 add $0x24,%al
3e: 0e (bad)
3f: 36 ss