Oops: general protection fault, probably for non-canonical address 0xdffffc000000044c: 0000 [#1] PREEMPT SMP KASAN PTI
KASAN: probably user-memory-access in range [0x0000000000002260-0x0000000000002267]
CPU: 0 UID: 0 PID: 6081 Comm: kworker/u8:11 Not tainted 6.13.0-rc6-syzkaller-00059-g643e2e259c2b #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
Workqueue: events_unbound flush_to_ldisc
RIP: 0010:n_tty_receive_buf_common+0x693/0x18e0 drivers/tty/n_tty.c:1718
Code: 24 31 ff 48 8b 98 38 04 00 00 48 c1 eb 14 83 e3 01 89 de e8 df 39 8e fc 84 db 0f 85 43 0c 00 00 e8 32 3f 8e fc 48 8b 44 24 70 <80> 38 00 0f 85 78 0f 00 00 48 8b 44 24 10 48 8b a8 60 22 00 00 48
RSP: 0018:ffffc90004ed7ad8 EFLAGS: 00010293
RAX: dffffc000000044c RBX: 0000000000000001 RCX: dffffc0000000000
RDX: ffff888031088000 RSI: ffffffff850b133e RDI: dffffc000000044c
RBP: 00000000000001dd R08: 0000000000000001 R09: ffffed100c719e50
R10: ffff8880638cf287 R11: 0000000000000004 R12: ffffffff850b25a0
R13: 0000000000000000 R14: ffff8880638cf000 R15: dffffc0000000000
FS:  0000000000000000(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f9d6ac69ff8 CR3: 000000006da20000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 tty_ldisc_receive_buf+0xa2/0x190 drivers/tty/tty_buffer.c:387
 tty_port_default_receive_buf+0x70/0xb0 drivers/tty/tty_port.c:37
 receive_buf drivers/tty/tty_buffer.c:445 [inline]
 flush_to_ldisc+0x264/0x780 drivers/tty/tty_buffer.c:495
 process_one_work+0x958/0x1b30 kernel/workqueue.c:3229
 process_scheduled_works kernel/workqueue.c:3310 [inline]
 worker_thread+0x6c8/0xf00 kernel/workqueue.c:3391
 kthread+0x2c1/0x3a0 kernel/kthread.c:389
 ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:n_tty_receive_buf_common+0x693/0x18e0 drivers/tty/n_tty.c:1718
Code: 24 31 ff 48 8b 98 38 04 00 00 48 c1 eb 14 83 e3 01 89 de e8 df 39 8e fc 84 db 0f 85 43 0c 00 00 e8 32 3f 8e fc 48 8b 44 24 70 <80> 38 00 0f 85 78 0f 00 00 48 8b 44 24 10 48 8b a8 60 22 00 00 48
RSP: 0018:ffffc90004ed7ad8 EFLAGS: 00010293

RAX: dffffc000000044c RBX: 0000000000000001 RCX: dffffc0000000000
RDX: ffff888031088000 RSI: ffffffff850b133e RDI: dffffc000000044c
RBP: 00000000000001dd R08: 0000000000000001 R09: ffffed100c719e50
R10: ffff8880638cf287 R11: 0000000000000004 R12: ffffffff850b25a0
R13: 0000000000000000 R14: ffff8880638cf000 R15: dffffc0000000000
FS:  0000000000000000(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055f851a8e680 CR3: 000000000db7e000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
----------------
Code disassembly (best guess):
   0:	24 31                	and    $0x31,%al
   2:	ff 48 8b             	decl   -0x75(%rax)
   5:	98                   	cwtl
   6:	38 04 00             	cmp    %al,(%rax,%rax,1)
   9:	00 48 c1             	add    %cl,-0x3f(%rax)
   c:	eb 14                	jmp    0x22
   e:	83 e3 01             	and    $0x1,%ebx
  11:	89 de                	mov    %ebx,%esi
  13:	e8 df 39 8e fc       	call   0xfc8e39f7
  18:	84 db                	test   %bl,%bl
  1a:	0f 85 43 0c 00 00    	jne    0xc63
  20:	e8 32 3f 8e fc       	call   0xfc8e3f57
  25:	48 8b 44 24 70       	mov    0x70(%rsp),%rax
* 2a:	80 38 00             	cmpb   $0x0,(%rax) <-- trapping instruction
  2d:	0f 85 78 0f 00 00    	jne    0xfab
  33:	48 8b 44 24 10       	mov    0x10(%rsp),%rax
  38:	48 8b a8 60 22 00 00 	mov    0x2260(%rax),%rbp
  3f:	48                   	rex.W