================================================================================
UBSAN: array-index-out-of-bounds in drivers/input/tablet/aiptek.c:741:31
index 20872 is out of range for type 'const int[34]'
CPU: 1 PID: 5142 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+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+0xa40/0x3420 drivers/usb/gadget/udc/dummy_hcd.c:2003
 __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
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:687
RIP: 0010:__sanitizer_cov_trace_cmp8+0x0/0x80 kernel/kcov.c:293
Code: c0 4c 89 01 48 c7 44 11 08 04 00 00 00 48 89 7c 11 10 48 89 74 11 18 48 89 44 11 20 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 00 <f3> 0f 1e fa 48 8b 04 24 65 48 8b 0d d0 d0 7c 7e 65 8b 15 d1 d0 7c
RSP: 0018:ffffc900032d7700 EFLAGS: 00000246
RAX: 1ffffffff1c785e3 RBX: 0000000000000000 RCX: ffff88807d819e00
RDX: 0000000000000000 RSI: 00007feda5ea7407 RDI: ffffffffa00076c0
RBP: 0000000000000000 R08: dffffc0000000000 R09: 1ffffffff22378a0
R10: dffffc0000000000 R11: fffffbfff22378a1 R12: ffffffffa00076c0
R13: dffffc0000000000 R14: 00007feda5ea7407 R15: ffffffff8e3c3138
 bpf_tree_comp kernel/bpf/core.c:632 [inline]
 __lt_find include/linux/rbtree_latch.h:115 [inline]
 latch_tree_find include/linux/rbtree_latch.h:208 [inline]
 bpf_ksym_find kernel/bpf/core.c:708 [inline]
 is_bpf_text_address+0x140/0x2a0 kernel/bpf/core.c:742
 kernel_text_address+0xa0/0xd0 kernel/extable.c:125
 __kernel_text_address+0xd/0x30 kernel/extable.c:79
 unwind_get_return_address+0x5d/0xc0 arch/x86/kernel/unwind_orc.c:369
 arch_stack_walk+0x11d/0x190 arch/x86/kernel/stacktrace.c:26
 stack_trace_save+0xaa/0x100 kernel/stacktrace.c:122
 kasan_save_stack mm/kasan/common.c:46 [inline]
 kasan_set_track+0x4e/0x70 mm/kasan/common.c:53
 ____kasan_kmalloc mm/kasan/common.c:375 [inline]
 __kasan_kmalloc+0x8f/0xa0 mm/kasan/common.c:384
 kmalloc include/linux/slab.h:600 [inline]
 kzalloc include/linux/slab.h:721 [inline]
 uevent_show+0x158/0x300 drivers/base/core.c:2701
 dev_attr_show+0x54/0xc0 drivers/base/core.c:2379
 sysfs_kf_seq_show+0x34d/0x4c0 fs/sysfs/file.c:59
 seq_read_iter+0x464/0xc50 fs/seq_file.c:230
 call_read_iter include/linux/fs.h:2012 [inline]
 new_sync_read fs/read_write.c:389 [inline]
 vfs_read+0x486/0x990 fs/read_write.c:470
 ksys_read+0x151/0x260 fs/read_write.c:613
 do_syscall_x64 arch/x86/entry/common.c:46 [inline]
 do_syscall_64+0x55/0xb0 arch/x86/entry/common.c:76
 entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7feda5ea7407
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:00007ffc09040a10 EFLAGS: 00000202 ORIG_RAX: 0000000000000000
RAX: ffffffffffffffda RBX: 00007feda659f880 RCX: 00007feda5ea7407
RDX: 0000000000001000 RSI: 0000556c6c82dd90 RDI: 000000000000000c
RBP: 00007feda5fefff0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000202 R12: 000000000000000a
R13: 00007feda5fefea0 R14: 0000000000000000 R15: 0000556c6c81b8a0
 </TASK>
================================================================================
----------------
Code disassembly (best guess):
   0:	c0 4c 89 01 48       	rorb   $0x48,0x1(%rcx,%rcx,4)
   5:	c7 44 11 08 04 00 00 	movl   $0x4,0x8(%rcx,%rdx,1)
   c:	00
   d:	48 89 7c 11 10       	mov    %rdi,0x10(%rcx,%rdx,1)
  12:	48 89 74 11 18       	mov    %rsi,0x18(%rcx,%rdx,1)
  17:	48 89 44 11 20       	mov    %rax,0x20(%rcx,%rdx,1)
  1c:	c3                   	ret
  1d:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  24:	00 00 00
  27:	0f 1f 00             	nopl   (%rax)
* 2a:	f3 0f 1e fa          	endbr64 <-- trapping instruction
  2e:	48 8b 04 24          	mov    (%rsp),%rax
  32:	65 48 8b 0d d0 d0 7c 	mov    %gs:0x7e7cd0d0(%rip),%rcx        # 0x7e7cd10a
  39:	7e
  3a:	65                   	gs
  3b:	8b                   	.byte 0x8b
  3c:	15                   	.byte 0x15
  3d:	d1 d0                	rcl    $1,%eax
  3f:	7c                   	.byte 0x7c