------------[ cut here ]------------
UBSAN: array-index-out-of-bounds in drivers/input/tablet/aiptek.c:685:31
index 62 is out of range for type 'const int[34]'
CPU: 0 UID: 0 PID: 436 Comm: syz.3.36 Not tainted syzkaller #0 471281939cd7bfdfff4c6b6074d5d68627c837ba
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026
Call Trace:
 <IRQ>
 __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+0x26bc/0x2a00 drivers/input/tablet/aiptek.c:685
 __usb_hcd_giveback_urb+0x375/0x540 drivers/usb/core/hcd.c:1648
 usb_hcd_giveback_urb+0x11b/0x410 drivers/usb/core/hcd.c:1732
 dummy_timer+0x816/0x4300 drivers/usb/gadget/udc/dummy_hcd.c:2003
 __run_hrtimer kernel/time/hrtimer.c:1753 [inline]
 __hrtimer_run_queues+0x3ab/0x8e0 kernel/time/hrtimer.c:1817
 hrtimer_run_softirq+0x159/0x560 kernel/time/hrtimer.c:1834
 handle_softirqs+0x1aa/0x630 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
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x1f/0x30 arch/x86/include/asm/idtentry.h:702
RIP: 0010:tlb_remove_table+0x12c/0x980 mm/mmu_gather.c:370
Code: 00 74 08 4c 89 e7 e8 53 81 0c 00 48 8b 45 a8 49 89 04 24 4c 89 7d d0 49 8b 1f 48 8d 7b 10 48 89 f8 48 c1 e8 03 42 0f b6 04 30 <84> c0 0f 85 94 06 00 00 44 8b 7b 10 bf fd 01 00 00 44 89 fe e8 db
RSP: 0018:ffffc9000b77f7c8 EFLAGS: 00000a02
RAX: 0000000000000000 RBX: ffff88810bb98000 RCX: 0000000000000001
RDX: 0000000000000000 RSI: ffff88810bb98000 RDI: ffff88810bb98010
RBP: ffffc9000b77f828 R08: ffffea00042ee637 R09: 1ffffd400085dcc6
R10: dffffc0000000000 R11: fffff9400085dcc7 R12: ffff88810bb98018
R13: ffffc9000b77fb40 R14: dffffc0000000000 R15: ffffc9000b77fb48
 native_tlb_remove_table+0x21/0x40 arch/x86/kernel/paravirt.c:73
 paravirt_tlb_remove_table arch/x86/include/asm/paravirt.h:96 [inline]
 ___pte_free_tlb+0x57/0x70 arch/x86/mm/pgtable.c:67
 __pte_free_tlb arch/x86/include/asm/pgalloc.h:61 [inline]
 free_pte_range mm/memory.c:200 [inline]
 free_pmd_range mm/memory.c:218 [inline]
 free_pud_range mm/memory.c:252 [inline]
 free_p4d_range mm/memory.c:286 [inline]
 free_pgd_range+0x5f7/0xb50 mm/memory.c:366
 free_pgtables+0x600/0x760 mm/memory.c:419
 exit_mmap+0x43d/0xbc0 mm/mmap.c:1983
 __mmput+0x93/0x340 kernel/fork.c:1359
 mmput+0x55/0x170 kernel/fork.c:1383
 exit_mm kernel/exit.c:574 [inline]
 do_exit+0x909/0x2720 kernel/exit.c:941
 do_group_exit+0x229/0x2f0 kernel/exit.c:1096
 __do_sys_exit_group kernel/exit.c:1107 [inline]
 __se_sys_exit_group kernel/exit.c:1105 [inline]
 __x64_sys_exit_group+0x43/0x50 kernel/exit.c:1105
 x64_sys_call+0x2ed2/0x2ee0 arch/x86/include/generated/asm/syscalls_64.h:232
 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: 0033:0x7fcd9bf9ce59
Code: Unable to access opcode bytes at 0x7fcd9bf9ce2f.
RSP: 002b:00007ffcb7191178 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fcd9bf9ce59
RDX: 0000000000000064 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 00007ffcb71911dc R08: 0000000000000000 R09: 00000000000927c0
R10: 0000000000000001 R11: 0000000000000246 R12: 0000000000000006
R13: 00000000000927c0 R14: 0000000000008de0 R15: 00007ffcb7191230
 </TASK>
---[ end trace ]---
aiptek 1-1:0.0: aiptek_irq - usb_submit_urb failed with result -19
----------------
Code disassembly (best guess):
   0:	00 74 08 4c          	add    %dh,0x4c(%rax,%rcx,1)
   4:	89 e7                	mov    %esp,%edi
   6:	e8 53 81 0c 00       	call   0xc815e
   b:	48 8b 45 a8          	mov    -0x58(%rbp),%rax
   f:	49 89 04 24          	mov    %rax,(%r12)
  13:	4c 89 7d d0          	mov    %r15,-0x30(%rbp)
  17:	49 8b 1f             	mov    (%r15),%rbx
  1a:	48 8d 7b 10          	lea    0x10(%rbx),%rdi
  1e:	48 89 f8             	mov    %rdi,%rax
  21:	48 c1 e8 03          	shr    $0x3,%rax
  25:	42 0f b6 04 30       	movzbl (%rax,%r14,1),%eax
* 2a:	84 c0                	test   %al,%al <-- trapping instruction
  2c:	0f 85 94 06 00 00    	jne    0x6c6
  32:	44 8b 7b 10          	mov    0x10(%rbx),%r15d
  36:	bf fd 01 00 00       	mov    $0x1fd,%edi
  3b:	44 89 fe             	mov    %r15d,%esi
  3e:	e8                   	.byte 0xe8
  3f:	db                   	.byte 0xdb