general protection fault, probably for non-canonical address 0xdffffc0000000000: 0000 [#1] PREEMPT SMP KASAN
KASAN: null-ptr-deref in range [0x0000000000000000-0x0000000000000007]
CPU: 1 PID: 27 Comm: kworker/1:1 Not tainted 6.5.0-syzkaller-11938-g65d6e954e378 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/26/2023
Workqueue: events_long serio_handle_event
RIP: 0010:strchr+0x21/0x90 lib/string.c:329
Code: 00 00 00 00 00 0f 1f 40 00 f3 0f 1e fa 55 41 57 41 56 53 41 89 f6 48 89 fb 49 bf 00 00 00 00 00 fc ff df 48 89 f8 48 c1 e8 03 <42> 0f b6 04 38 84 c0 75 4f 0f b6 03 44 38 f0 74 3d 48 8d 6b 01 84
RSP: 0018:ffffc90000a2fa10 EFLAGS: 00010246
RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffff888018661dc0
RDX: 0000000000000000 RSI: 0000000000000025 RDI: 0000000000000000
RBP: 0000000000000000 R08: ffffffff8abcd929 R09: 0000000000000000
R10: ffffc90000a2fb00 R11: fffff52000145f63 R12: dffffc0000000000
R13: 1ffff11002850e40 R14: 0000000000000025 R15: dffffc0000000000
FS:  0000000000000000(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f05cbb200d0 CR3: 0000000027eb5000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 kvasprintf_const+0x29/0x170 lib/kasprintf.c:45
 kobject_set_name_vargs+0x61/0x120 lib/kobject.c:272
 kobject_add_varg lib/kobject.c:366 [inline]
 kobject_add+0x113/0x210 lib/kobject.c:424
 device_add+0x449/0xc90 drivers/base/core.c:3560
 serio_add_port drivers/input/serio/serio.c:539 [inline]
 serio_handle_event+0x752/0x910 drivers/input/serio/serio.c:207
 process_one_work+0x781/0x1130 kernel/workqueue.c:2630
 process_scheduled_works kernel/workqueue.c:2703 [inline]
 worker_thread+0xabf/0x1060 kernel/workqueue.c:2784
 kthread+0x2b8/0x350 kernel/kthread.c:388
 ret_from_fork+0x48/0x80 arch/x86/kernel/process.c:147
 ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:304
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:strchr+0x21/0x90 lib/string.c:329
Code: 00 00 00 00 00 0f 1f 40 00 f3 0f 1e fa 55 41 57 41 56 53 41 89 f6 48 89 fb 49 bf 00 00 00 00 00 fc ff df 48 89 f8 48 c1 e8 03 <42> 0f b6 04 38 84 c0 75 4f 0f b6 03 44 38 f0 74 3d 48 8d 6b 01 84
RSP: 0018:ffffc90000a2fa10 EFLAGS: 00010246
RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffff888018661dc0
RDX: 0000000000000000 RSI: 0000000000000025 RDI: 0000000000000000
RBP: 0000000000000000 R08: ffffffff8abcd929 R09: 0000000000000000
R10: ffffc90000a2fb00 R11: fffff52000145f63 R12: dffffc0000000000
R13: 1ffff11002850e40 R14: 0000000000000025 R15: dffffc0000000000
FS:  0000000000000000(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f05cbb200d0 CR3: 000000000d130000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
----------------
Code disassembly (best guess), 1 bytes skipped:
   0:	00 00                	add    %al,(%rax)
   2:	00 00                	add    %al,(%rax)
   4:	0f 1f 40 00          	nopl   0x0(%rax)
   8:	f3 0f 1e fa          	endbr64
   c:	55                   	push   %rbp
   d:	41 57                	push   %r15
   f:	41 56                	push   %r14
  11:	53                   	push   %rbx
  12:	41 89 f6             	mov    %esi,%r14d
  15:	48 89 fb             	mov    %rdi,%rbx
  18:	49 bf 00 00 00 00 00 	movabs $0xdffffc0000000000,%r15
  1f:	fc ff df
  22:	48 89 f8             	mov    %rdi,%rax
  25:	48 c1 e8 03          	shr    $0x3,%rax
* 29:	42 0f b6 04 38       	movzbl (%rax,%r15,1),%eax <-- trapping instruction
  2e:	84 c0                	test   %al,%al
  30:	75 4f                	jne    0x81
  32:	0f b6 03             	movzbl (%rbx),%eax
  35:	44 38 f0             	cmp    %r14b,%al
  38:	74 3d                	je     0x77
  3a:	48 8d 6b 01          	lea    0x1(%rbx),%rbp
  3e:	84                   	.byte 0x84