------------[ cut here ]------------
UBSAN: array-index-out-of-bounds in drivers/input/tablet/aiptek.c:741:31
index 65279 is out of range for type 'const int[34]'
CPU: 1 UID: 0 PID: 33 Comm: rcuop/1 Not tainted syzkaller #0 f2e3546bd5cd9c2c62fe243d57d118fc828de9da
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+0x36e/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+0x3ab/0x8e0 kernel/time/hrtimer.c:1822
hrtimer_run_softirq+0x159/0x560 kernel/time/hrtimer.c:1839
handle_softirqs+0x1aa/0x5b0 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:finish_task_switch+0x141/0x770 kernel/sched/core.c:5935
Code: 80 3c 2b 00 74 08 4c 89 f7 e8 0b 19 86 00 4d 8b 2e 4d 85 ed 0f 85 d3 00 00 00 4c 89 e7 e8 97 ac 4d 04 fb 49 8d 9f 88 0c 00 00 <48> 89 d8 48 c1 e8 03 49 bd 00 00 00 00 00 fc ff df 42 0f b6 04 28
RSP: 0018:ffffc900002277d0 EFLAGS: 00000282
RAX: 0000000000000001 RBX: ffff88810367a048 RCX: dffffc0000000000
RDX: 0000000040000000 RSI: 0000000000000000 RDI: ffff8881f6d4fd40
RBP: ffffc90000227810 R08: ffff8881036793c7 R09: 1ffff110206cf278
R10: dffffc0000000000 R11: ffffed10206cf279 R12: ffff8881f6d4fd40
R13: 0000000000000000 R14: ffff8881f6d50b10 R15: ffff8881036793c0
context_switch kernel/sched/core.c:6066 [inline]
__schedule+0x1706/0x23d0 kernel/sched/core.c:7883
preempt_schedule_common+0x2d/0x60 kernel/sched/core.c:8062
preempt_schedule+0xc5/0xe0 kernel/sched/core.c:8086
preempt_schedule_thunk+0x1a/0x40 arch/x86/entry/thunk.S:12
__local_bh_enable_ip+0x64/0x80 kernel/softirq.c:437
local_bh_enable include/linux/bottom_half.h:33 [inline]
rcu_do_batch+0x590/0xcb0 kernel/rcu/tree.c:2594
nocb_cb_wait kernel/rcu/tree_nocb.h:923 [inline]
rcu_nocb_cb_kthread+0x533/0xb60 kernel/rcu/tree_nocb.h:957
kthread+0x2c7/0x360 kernel/kthread.c:389
ret_from_fork+0x67/0xa0 arch/x86/kernel/process.c:153
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
---[ end trace ]---
------------[ cut here ]------------
UBSAN: array-index-out-of-bounds in drivers/input/tablet/aiptek.c:763:30
index 65280 is out of range for type 'const int[34]'
CPU: 1 UID: 0 PID: 33 Comm: rcuop/1 Not tainted syzkaller #0 f2e3546bd5cd9c2c62fe243d57d118fc828de9da
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+0x36e/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+0x3ab/0x8e0 kernel/time/hrtimer.c:1822
hrtimer_run_softirq+0x159/0x560 kernel/time/hrtimer.c:1839
handle_softirqs+0x1aa/0x5b0 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:finish_task_switch+0x141/0x770 kernel/sched/core.c:5935
Code: 80 3c 2b 00 74 08 4c 89 f7 e8 0b 19 86 00 4d 8b 2e 4d 85 ed 0f 85 d3 00 00 00 4c 89 e7 e8 97 ac 4d 04 fb 49 8d 9f 88 0c 00 00 <48> 89 d8 48 c1 e8 03 49 bd 00 00 00 00 00 fc ff df 42 0f b6 04 28
RSP: 0018:ffffc900002277d0 EFLAGS: 00000282
RAX: 0000000000000001 RBX: ffff88810367a048 RCX: dffffc0000000000
RDX: 0000000040000000 RSI: 0000000000000000 RDI: ffff8881f6d4fd40
RBP: ffffc90000227810 R08: ffff8881036793c7 R09: 1ffff110206cf278
R10: dffffc0000000000 R11: ffffed10206cf279 R12: ffff8881f6d4fd40
R13: 0000000000000000 R14: ffff8881f6d50b10 R15: ffff8881036793c0
context_switch kernel/sched/core.c:6066 [inline]
__schedule+0x1706/0x23d0 kernel/sched/core.c:7883
preempt_schedule_common+0x2d/0x60 kernel/sched/core.c:8062
preempt_schedule+0xc5/0xe0 kernel/sched/core.c:8086
preempt_schedule_thunk+0x1a/0x40 arch/x86/entry/thunk.S:12
__local_bh_enable_ip+0x64/0x80 kernel/softirq.c:437
local_bh_enable include/linux/bottom_half.h:33 [inline]
rcu_do_batch+0x590/0xcb0 kernel/rcu/tree.c:2594
nocb_cb_wait kernel/rcu/tree_nocb.h:923 [inline]
rcu_nocb_cb_kthread+0x533/0xb60 kernel/rcu/tree_nocb.h:957
kthread+0x2c7/0x360 kernel/kthread.c:389
ret_from_fork+0x67/0xa0 arch/x86/kernel/process.c:153
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
---[ end trace ]---
aiptek 2-1:0.0: aiptek_irq - usb_submit_urb failed with result -19
----------------
Code disassembly (best guess):
0: 80 3c 2b 00 cmpb $0x0,(%rbx,%rbp,1)
4: 74 08 je 0xe
6: 4c 89 f7 mov %r14,%rdi
9: e8 0b 19 86 00 call 0x861919
e: 4d 8b 2e mov (%r14),%r13
11: 4d 85 ed test %r13,%r13
14: 0f 85 d3 00 00 00 jne 0xed
1a: 4c 89 e7 mov %r12,%rdi
1d: e8 97 ac 4d 04 call 0x44dacb9
22: fb sti
23: 49 8d 9f 88 0c 00 00 lea 0xc88(%r15),%rbx
* 2a: 48 89 d8 mov %rbx,%rax <-- trapping instruction
2d: 48 c1 e8 03 shr $0x3,%rax
31: 49 bd 00 00 00 00 00 movabs $0xdffffc0000000000,%r13
38: fc ff df
3b: 42 0f b6 04 28 movzbl (%rax,%r13,1),%eax