------------[ cut here ]------------
WARNING: CPU: 1 PID: 10 at drivers/block/floppy.c:999 schedule_bh drivers/block/floppy.c:999 [inline]
WARNING: CPU: 1 PID: 10 at drivers/block/floppy.c:999 process_fd_request+0x6b/0x70 drivers/block/floppy.c:2847
Modules linked in:
CPU: 1 PID: 10 Comm: kworker/u16:0 Not tainted 6.4.0-syzkaller #0
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.14.0-2 04/01/2014
Workqueue: floppy floppy_shutdown
RIP: 0010:schedule_bh drivers/block/floppy.c:999 [inline]
RIP: 0010:process_fd_request+0x6b/0x70 drivers/block/floppy.c:2847
Code: fc 5b bf 08 00 00 00 48 c7 c2 c0 3f 46 8d 48 8b 35 8a da ea 0c 48 c7 05 9f d5 ea 0c 20 40 23 85 e9 ea 9a 2f fc e8 75 4c 60 fc <0f> 0b eb ce 90 48 b8 00 00 00 00 00 fc ff df 41 55 49 89 fd 41 54
RSP: 0018:ffffc900002efcf8 EFLAGS: 00010293
RAX: 0000000000000000 RBX: 0000000000000001 RCX: 0000000000000000
RDX: ffff888014a98240 RSI: ffffffff85231ecb RDI: 0000000000000001
RBP: 0000000000000292 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000001 R11: 5f746e6572727563 R12: ffffc900002efdb0
R13: ffffffff8d464050 R14: ffff888014298300 R15: ffff888012479000
FS:  0000000000000000(0000) GS:ffff88806b700000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f4e9251f718 CR3: 000000000c571000 CR4: 0000000000350ee0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 floppy_shutdown+0x135/0x230 drivers/block/floppy.c:1889
 process_one_work+0x99a/0x15e0 kernel/workqueue.c:2408
 worker_thread+0x67d/0x10c0 kernel/workqueue.c:2555
 kthread+0x344/0x440 kernel/kthread.c:379
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308
 </TASK>