================================================================================
UBSAN: array-index-out-of-bounds in drivers/input/tablet/aiptek.c:741:31
index 512 is out of range for type 'const int[34]'
CPU: 1 PID: 3640 Comm: udevd 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+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
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:691
RIP: 0010:orc_find arch/x86/kernel/unwind_orc.c:168 [inline]
RIP: 0010:unwind_next_frame+0x19b/0x1fd0 arch/x86/kernel/unwind_orc.c:448
Code: ef 08 8b 35 97 24 2c 0b 8d 46 ff 44 39 f8 0f 86 b0 16 00 00 44 89 f8 4c 8d 24 85 20 0b 3e 8f 4c 89 e0 48 c1 e8 03 0f b6 04 28 <84> c0 0f 85 23 18 00 00 45 8b 24 24 44 89 f8 ff c0 4c 8d 2c 85 20
RSP: 0018:ffffc900032b7440 EFLAGS: 00000a06
RAX: 0000000000000000 RBX: ffffc900032b74e8 RCX: ffffffff96bf9100
RDX: dffffc0000000000 RSI: 0000000000096079 RDI: ffffffff8138fb37
RBP: dffffc0000000000 R08: ffffc900032b75b0 R09: 0000000000000004
R10: dffffc0000000000 R11: fffff52000656ea9 R12: ffffffff8f419210
R13: ffffc900032b7940 R14: ffffffff81e1bce4 R15: 000000000000e1bc
 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]
 slab_alloc mm/slub.c:3367 [inline]
 __kmem_cache_alloc_lru mm/slub.c:3374 [inline]
 kmem_cache_alloc+0x18b/0x2f0 mm/slub.c:3383
 kmem_cache_zalloc include/linux/slab.h:689 [inline]
 __alloc_file+0x25/0x230 fs/file_table.c:138
 alloc_empty_file+0x90/0x180 fs/file_table.c:187
 path_openat+0x11c/0x2f10 fs/namei.c:3777
 do_filp_open+0x1ee/0x420 fs/namei.c:3818
 do_sys_openat2+0x14b/0x4f0 fs/open.c:1320
 do_sys_open fs/open.c:1336 [inline]
 __do_sys_openat fs/open.c:1352 [inline]
 __se_sys_openat fs/open.c:1347 [inline]
 __x64_sys_openat+0x135/0x160 fs/open.c:1347
 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: 0033:0x7f3153aa7407
Code: 48 89 fa 4c 89 df e8 38 aa 00 00 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 1a 5b c3 0f 1f 84 00 00 00 00 00 48 8b 44 24 10 0f 05 <5b> c3 0f 1f 80 00 00 00 00 83 e2 39 83 fa 08 75 de e8 23 ff ff ff
RSP: 002b:00007ffeadad5930 EFLAGS: 00000202 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 00007f3154162880 RCX: 00007f3153aa7407
RDX: 0000000000080141 RSI: 0000561c6ccbb02e RDI: ffffffffffffff9c
RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
R10: 00000000000001a4 R11: 0000000000000202 R12: 00000000ffffffff
R13: 00000000ffffffff R14: ffffffffffffffff R15: 0000000000000000
 </TASK>
================================================================================
----------------
Code disassembly (best guess):
   0:	ef                   	out    %eax,(%dx)
   1:	08 8b 35 97 24 2c    	or     %cl,0x2c249735(%rbx)
   7:	0b 8d 46 ff 44 39    	or     0x3944ff46(%rbp),%ecx
   d:	f8                   	clc
   e:	0f 86 b0 16 00 00    	jbe    0x16c4
  14:	44 89 f8             	mov    %r15d,%eax
  17:	4c 8d 24 85 20 0b 3e 	lea    -0x70c1f4e0(,%rax,4),%r12
  1e:	8f
  1f:	4c 89 e0             	mov    %r12,%rax
  22:	48 c1 e8 03          	shr    $0x3,%rax
  26:	0f b6 04 28          	movzbl (%rax,%rbp,1),%eax
* 2a:	84 c0                	test   %al,%al <-- trapping instruction
  2c:	0f 85 23 18 00 00    	jne    0x1855
  32:	45 8b 24 24          	mov    (%r12),%r12d
  36:	44 89 f8             	mov    %r15d,%eax
  39:	ff c0                	inc    %eax
  3b:	4c                   	rex.WR
  3c:	8d                   	.byte 0x8d
  3d:	2c 85                	sub    $0x85,%al
  3f:	20                   	.byte 0x20