================================================================================
UBSAN: array-index-out-of-bounds in drivers/input/tablet/aiptek.c:741:31
index 9222 is out of range for type 'const int[34]'
CPU: 1 PID: 25 Comm: kdevtmpfs 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:__init_rwsem+0x0/0x160 kernel/locking/rwsem.c:312
Code: 07 80 c1 03 38 c1 0f 8c 2d fd ff ff 48 c7 c7 9c 1a 8b 8e e8 92 f8 77 00 e9 1c fd ff ff 0f 0b cc cc cc cc cc cc cc cc cc cc cc <f3> 0f 1e fa 41 57 41 56 41 54 53 49 89 d6 49 89 f7 48 89 fb 49 bc
RSP: 0018:ffffc90000a0f9d0 EFLAGS: 00000286
RAX: 3163473917d09200 RBX: ffff88807946d248 RCX: ffffffff972c3401
RDX: ffffffff97331340 RSI: ffffffff8ad7e800 RDI: ffff88807946d338
RBP: 0000000000000002 R08: ffff88807946d30f R09: 0000000000000000
R10: ffff88807946d300 R11: ffffed100f28da62 R12: 0000000000000000
R13: ffff88814125e028 R14: dffffc0000000000 R15: 1ffff1102824bc05
 inode_init_always+0x4f8/0xc90 fs/inode.c:198
 alloc_inode fs/inode.c:268 [inline]
 new_inode_pseudo+0x95/0x1d0 fs/inode.c:1049
 new_inode+0x22/0x1d0 fs/inode.c:1075
 __shmem_get_inode mm/shmem.c:2467 [inline]
 shmem_get_inode+0x34d/0xcd0 mm/shmem.c:2539
 shmem_mknod+0x5f/0x1c0 mm/shmem.c:3232
 vfs_mknod+0x325/0x360 fs/namei.c:3999
 handle_create drivers/base/devtmpfs.c:219 [inline]
 handle drivers/base/devtmpfs.c:384 [inline]
 devtmpfs_work_loop+0x918/0xe40 drivers/base/devtmpfs.c:399
 devtmpfsd+0x48/0x50 drivers/base/devtmpfs.c:441
 kthread+0x2fa/0x390 kernel/kthread.c:388
 ret_from_fork+0x48/0x80 arch/x86/kernel/process.c:152
 ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:293
 </TASK>
================================================================================
----------------
Code disassembly (best guess), 1 bytes skipped:
   0:	80 c1 03             	add    $0x3,%cl
   3:	38 c1                	cmp    %al,%cl
   5:	0f 8c 2d fd ff ff    	jl     0xfffffd38
   b:	48 c7 c7 9c 1a 8b 8e 	mov    $0xffffffff8e8b1a9c,%rdi
  12:	e8 92 f8 77 00       	call   0x77f8a9
  17:	e9 1c fd ff ff       	jmp    0xfffffd38
  1c:	0f 0b                	ud2
  1e:	cc                   	int3
  1f:	cc                   	int3
  20:	cc                   	int3
  21:	cc                   	int3
  22:	cc                   	int3
  23:	cc                   	int3
  24:	cc                   	int3
  25:	cc                   	int3
  26:	cc                   	int3
  27:	cc                   	int3
  28:	cc                   	int3
* 29:	f3 0f 1e fa          	endbr64 <-- trapping instruction
  2d:	41 57                	push   %r15
  2f:	41 56                	push   %r14
  31:	41 54                	push   %r12
  33:	53                   	push   %rbx
  34:	49 89 d6             	mov    %rdx,%r14
  37:	49 89 f7             	mov    %rsi,%r15
  3a:	48 89 fb             	mov    %rdi,%rbx
  3d:	49                   	rex.WB
  3e:	bc                   	.byte 0xbc