Oops: general protection fault, probably for non-canonical address 0xdffffc000000044c: 0000 [#1] SMP KASAN NOPTI
KASAN: probably user-memory-access in range [0x0000000000002260-0x0000000000002267]
CPU: 2 UID: 0 PID: 1234 Comm: kworker/u32:11 Not tainted 6.16.0-rc5-syzkaller-00224-g379f604cc3dc #0 PREEMPT(full) 
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
Workqueue: events_unbound flush_to_ldisc
RIP: 0010:n_tty_receive_buf_common+0xf3/0x1980 drivers/tty/n_tty.c:1702
Code: 00 00 00 00 00 00 00 48 89 7c 24 68 48 89 4c 24 70 89 9c 24 94 00 00 00 48 89 84 24 a0 00 00 00 e8 42 94 69 fc 48 8b 44 24 68 <80> 38 00 0f 85 b6 15 00 00 48 8b 44 24 18 48 8b a8 60 22 00 00 48
RSP: 0018:ffffc900065dfa68 EFLAGS: 00010293
RAX: dffffc000000044c RBX: 0000000000000001 RCX: dffffc0000000000
RDX: ffff8880291fa440 RSI: ffffffff855262ce RDI: dffffc000000044c
RBP: 0000000000000003 R08: 0000000000000001 R09: ffffed1006d41c50
R10: ffff888036a0e287 R11: 0000000000000001 R12: ffff888029282025
R13: 0000000000000000 R14: ffff888036a0e000 R15: dffffc0000000000
FS:  0000000000000000(0000) GS:ffff8880d6913000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fa3c17726e0 CR3: 000000004e9f1000 CR4: 0000000000352ef0
Call Trace:
 <TASK>
 tty_ldisc_receive_buf+0xa7/0x1a0 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+0x268/0x780 drivers/tty/tty_buffer.c:495
 process_one_work+0x9cf/0x1b70 kernel/workqueue.c:3238
 process_scheduled_works kernel/workqueue.c:3321 [inline]
 worker_thread+0x6c8/0xf10 kernel/workqueue.c:3402
 kthread+0x3c5/0x780 kernel/kthread.c:464
 ret_from_fork+0x5d7/0x6f0 arch/x86/kernel/process.c:148
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:n_tty_receive_buf_common+0xf3/0x1980 drivers/tty/n_tty.c:1702
Code: 00 00 00 00 00 00 00 48 89 7c 24 68 48 89 4c 24 70 89 9c 24 94 00 00 00 48 89 84 24 a0 00 00 00 e8 42 94 69 fc 48 8b 44 24 68 <80> 38 00 0f 85 b6 15 00 00 48 8b 44 24 18 48 8b a8 60 22 00 00 48
RSP: 0018:ffffc900065dfa68 EFLAGS: 00010293
RAX: dffffc000000044c RBX: 0000000000000001 RCX: dffffc0000000000
RDX: ffff8880291fa440 RSI: ffffffff855262ce RDI: dffffc000000044c
RBP: 0000000000000003 R08: 0000000000000001 R09: ffffed1006d41c50
R10: ffff888036a0e287 R11: 0000000000000001 R12: ffff888029282025
R13: 0000000000000000 R14: ffff888036a0e000 R15: dffffc0000000000
FS:  0000000000000000(0000) GS:ffff8880d6713000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f29acf7f2d8 CR3: 000000000e382000 CR4: 0000000000352ef0
----------------
Code disassembly (best guess), 1 bytes skipped:
   0:	00 00                	add    %al,(%rax)
   2:	00 00                	add    %al,(%rax)
   4:	00 00                	add    %al,(%rax)
   6:	48 89 7c 24 68       	mov    %rdi,0x68(%rsp)
   b:	48 89 4c 24 70       	mov    %rcx,0x70(%rsp)
  10:	89 9c 24 94 00 00 00 	mov    %ebx,0x94(%rsp)
  17:	48 89 84 24 a0 00 00 	mov    %rax,0xa0(%rsp)
  1e:	00
  1f:	e8 42 94 69 fc       	call   0xfc699466
  24:	48 8b 44 24 68       	mov    0x68(%rsp),%rax
* 29:	80 38 00             	cmpb   $0x0,(%rax) <-- trapping instruction
  2c:	0f 85 b6 15 00 00    	jne    0x15e8
  32:	48 8b 44 24 18       	mov    0x18(%rsp),%rax
  37:	48 8b a8 60 22 00 00 	mov    0x2260(%rax),%rbp
  3e:	48                   	rex.W