================================================================================
UBSAN: array-index-out-of-bounds in drivers/input/tablet/aiptek.c:741:31
index 64046 is out of range for type 'const int[34]'
CPU: 1 PID: 9203 Comm: syz.0.918 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026
Call Trace:
 <IRQ>
 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+0x1eaa/0x28f0 drivers/input/tablet/aiptek.c:741
 __usb_hcd_giveback_urb+0x35f/0x520 drivers/usb/core/hcd.c:1675
 dummy_timer+0x8d0/0x3330 drivers/usb/gadget/udc/dummy_hcd.c:2004
 __run_hrtimer kernel/time/hrtimer.c:1751 [inline]
 __hrtimer_run_queues+0x54a/0xd50 kernel/time/hrtimer.c:1815
 hrtimer_run_softirq+0x183/0x2a0 kernel/time/hrtimer.c:1832
 handle_softirqs+0x2a1/0x930 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
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:691
RIP: 0010:__preempt_count_add kernel/rcu/tree.c:717 [inline]
RIP: 0010:rcu_is_watching+0x2/0xa0 kernel/rcu/tree.c:720
Code: 8a e8 52 e3 c2 08 48 c7 c7 60 49 b3 8c 4c 89 f6 e8 43 ca cc 02 e9 44 ff ff ff 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 41 57 <41> 56 53 65 ff 05 1c fc 95 7e e8 cf f7 c2 08 89 c3 83 f8 08 73 60
RSP: 0018:ffffc90003697738 EFLAGS: 00000202
RAX: ffffffff81ddda0d RBX: ffffffff81ddd9dd RCX: 0000000000000000
RDX: ffff888076c65a00 RSI: 0000000000000001 RDI: 0000000000000000
RBP: 0000000000000001 R08: dffffc0000000000 R09: 1ffffffff215fe48
R10: dffffc0000000000 R11: fffffbfff215fe49 R12: dffffc0000000000
R13: ffffea0001f1d6c0 R14: 000000000007c75b R15: ffff88813fff91e0
 rcu_read_lock_sched include/linux/rcupdate.h:884 [inline]
 pfn_valid+0x106/0x420 include/linux/mmzone.h:1857
 page_table_check_clear+0x1e/0x6b0 mm/page_table_check.c:67
 ptep_get_and_clear_full arch/x86/include/asm/jump_label.h:-1 [inline]
 zap_pte_range mm/memory.c:1433 [inline]
 zap_pmd_range mm/memory.c:1572 [inline]
 zap_pud_range mm/memory.c:1601 [inline]
 zap_p4d_range mm/memory.c:1622 [inline]
 unmap_page_range+0x192d/0x2500 mm/memory.c:1643
 unmap_vmas+0x260/0x390 mm/memory.c:1728
 exit_mmap+0x20d/0x960 mm/mmap.c:3250
 __mmput+0x118/0x3c0 kernel/fork.c:1206
 exit_mm+0x25a/0x360 kernel/exit.c:566
 do_exit+0x905/0x2480 kernel/exit.c:868
 do_group_exit+0x217/0x2d0 kernel/exit.c:1024
 __do_sys_exit_group kernel/exit.c:1035 [inline]
 __se_sys_exit_group kernel/exit.c:1033 [inline]
 __x64_sys_exit_group+0x3b/0x40 kernel/exit.c:1033
 do_syscall_x64 arch/x86/entry/common.c:46 [inline]
 do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:76
 entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7f88aff9ce59
Code: Unable to access opcode bytes at 0x7f88aff9ce2f.
RSP: 002b:00007ffdc82f64f8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f88aff9ce59
RDX: 0000000000000064 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 00007ffdc82f655c R08: 0000000000000006 R09: 00000000000927c0
R10: 00000000003ffa50 R11: 0000000000000246 R12: 0000000000000056
R13: 00000000000927c0 R14: 00000000000937c6 R15: 00007ffdc82f65b0
 </TASK>
================================================================================
----------------
Code disassembly (best guess), 1 bytes skipped:
   0:	e8 52 e3 c2 08       	call   0x8c2e357
   5:	48 c7 c7 60 49 b3 8c 	mov    $0xffffffff8cb34960,%rdi
   c:	4c 89 f6             	mov    %r14,%rsi
   f:	e8 43 ca cc 02       	call   0x2ccca57
  14:	e9 44 ff ff ff       	jmp    0xffffff5d
  19:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  20:	00 00 00
  23:	0f 1f 40 00          	nopl   0x0(%rax)
  27:	41 57                	push   %r15
* 29:	41 56                	push   %r14 <-- trapping instruction
  2b:	53                   	push   %rbx
  2c:	65 ff 05 1c fc 95 7e 	incl   %gs:0x7e95fc1c(%rip)        # 0x7e95fc4f
  33:	e8 cf f7 c2 08       	call   0x8c2f807
  38:	89 c3                	mov    %eax,%ebx
  3a:	83 f8 08             	cmp    $0x8,%eax
  3d:	73 60                	jae    0x9f