general protection fault, probably for non-canonical address 0xdffffc000000044c: 0000 [#1] PREEMPT SMP KASAN
KASAN: probably user-memory-access in range [0x0000000000002260-0x0000000000002267]
CPU: 0 PID: 13107 Comm: kworker/u4:33 Not tainted 6.3.0-rc1-syzkaller-00274-g134231664868 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/02/2023
Workqueue: events_unbound flush_to_ldisc
RIP: 0010:n_tty_receive_buf_common+0xd4/0x1540 drivers/tty/n_tty.c:1690
Code: 60 48 89 44 24 68 48 89 d8 c7 84 24 80 00 00 00 00 00 00 00 48 c1 e8 03 4c 01 f0 48 89 44 24 70 e8 41 7d 01 fd 48 8b 44 24 68 <80> 38 00 0f 85 49 11 00 00 48 8b 44 24 10 4c 8b a0 60 22 00 00 48
RSP: 0018:ffffc90015e87b30 EFLAGS: 00010293
RAX: dffffc000000044c RBX: 0000000000000000 RCX: 0000000000000000
RDX: ffff88807977ba80 RSI: ffffffff8482584f RDI: 0000000000000001
RBP: ffff888082518912 R08: 0000000000000001 R09: ffff88809920d287
R10: ffffed1013241a50 R11: 0000000000000000 R12: 000000000000002c
R13: 0000000000000000 R14: dffffc0000000000 R15: ffff888082518912
FS:  0000000000000000(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000000 CR3: 00000000993e8000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 tty_ldisc_receive_buf+0xa7/0x190 drivers/tty/tty_buffer.c:457
 tty_port_default_receive_buf+0x72/0xa0 drivers/tty/tty_port.c:39
 receive_buf drivers/tty/tty_buffer.c:515 [inline]
 flush_to_ldisc+0x218/0x700 drivers/tty/tty_buffer.c:565
 process_one_work+0x991/0x1710 kernel/workqueue.c:2390
 worker_thread+0x669/0x1090 kernel/workqueue.c:2537
 kthread+0x2e8/0x3a0 kernel/kthread.c:376
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:n_tty_receive_buf_common+0xd4/0x1540 drivers/tty/n_tty.c:1690
Code: 60 48 89 44 24 68 48 89 d8 c7 84 24 80 00 00 00 00 00 00 00 48 c1 e8 03 4c 01 f0 48 89 44 24 70 e8 41 7d 01 fd 48 8b 44 24 68 <80> 38 00 0f 85 49 11 00 00 48 8b 44 24 10 4c 8b a0 60 22 00 00 48
RSP: 0018:ffffc90015e87b30 EFLAGS: 00010293
RAX: dffffc000000044c RBX: 0000000000000000 RCX: 0000000000000000
RDX: ffff88807977ba80 RSI: ffffffff8482584f RDI: 0000000000000001
RBP: ffff888082518912 R08: 0000000000000001 R09: ffff88809920d287
R10: ffffed1013241a50 R11: 0000000000000000 R12: 000000000000002c
R13: 0000000000000000 R14: dffffc0000000000 R15: ffff888082518912
FS:  0000000000000000(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000000 CR3: 00000000993e8000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
----------------
Code disassembly (best guess), 1 bytes skipped:
   0:	48 89 44 24 68       	mov    %rax,0x68(%rsp)
   5:	48 89 d8             	mov    %rbx,%rax
   8:	c7 84 24 80 00 00 00 	movl   $0x0,0x80(%rsp)
   f:	00 00 00 00
  13:	48 c1 e8 03          	shr    $0x3,%rax
  17:	4c 01 f0             	add    %r14,%rax
  1a:	48 89 44 24 70       	mov    %rax,0x70(%rsp)
  1f:	e8 41 7d 01 fd       	callq  0xfd017d65
  24:	48 8b 44 24 68       	mov    0x68(%rsp),%rax
* 29:	80 38 00             	cmpb   $0x0,(%rax) <-- trapping instruction
  2c:	0f 85 49 11 00 00    	jne    0x117b
  32:	48 8b 44 24 10       	mov    0x10(%rsp),%rax
  37:	4c 8b a0 60 22 00 00 	mov    0x2260(%rax),%r12
  3e:	48                   	rex.W