------------[ cut here ]------------
WARNING: CPU: 3 PID: 1731 at drivers/block/floppy.c:1000 schedule_bh+0x5f/0x70 drivers/block/floppy.c:1000
Modules linked in:
CPU: 3 PID: 1731 Comm: kworker/3:1H Not tainted 5.16.0-rc2-syzkaller #0
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.14.0-2 04/01/2014
Workqueue: kblockd blk_mq_run_work_fn

RIP: 0010:schedule_bh+0x5f/0x70 drivers/block/floppy.c:1000
Code: 17 24 fd fc 48 89 2d 70 6b ff 0b 5b 48 c7 c2 00 61 6a 8c 48 8b 35 41 70 ff 0b bf 08 00 00 00 5d e9 56 ab d1 fc e8 f1 23 fd fc <0f> 0b eb d1 66 66 2e 0f 1f 84 00 00 00 00 00 66 90 e8 db 23 fd fc
RSP: 0018:ffffc9000c5ff8f8 EFLAGS: 00010293
RAX: 0000000000000000 RBX: 0000000000000001 RCX: 0000000000000000
RDX: ffff88801792ba00 RSI: ffffffff847a756f RDI: 0000000000000003
RBP: ffffffff847b29b0 R08: 0000000000000000 R09: ffffffff8c6a6107
R10: ffffffff847a753f R11: 00000000ffffff80 R12: 0000000000000000
R13: ffff888018a553c0 R14: ffffc9000c5ffb20 R15: dffffc0000000000
FS:  0000000000000000(0000) GS:ffff88802cd00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00000000f6ff5018 CR3: 0000000018088000 CR4: 0000000000150ee0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 process_fd_request drivers/block/floppy.c:2851 [inline]
 floppy_queue_rq+0x1ff/0x340 drivers/block/floppy.c:2883
 blk_mq_dispatch_rq_list+0x6fd/0x2340 block/blk-mq.c:1662
 __blk_mq_do_dispatch_sched+0x3bc/0xa70 block/blk-mq-sched.c:199
 blk_mq_do_dispatch_sched block/blk-mq-sched.c:212 [inline]
 __blk_mq_sched_dispatch_requests+0x2a0/0x410 block/blk-mq-sched.c:332
 blk_mq_sched_dispatch_requests+0xfb/0x180 block/blk-mq-sched.c:358
 __blk_mq_run_hw_queue+0xd8/0x150 block/blk-mq.c:1784
 blk_mq_run_work_fn+0x55/0x70 block/blk-mq.c:2116
 process_one_work+0x9b2/0x1690 kernel/workqueue.c:2298
 worker_thread+0x658/0x11f0 kernel/workqueue.c:2445
 kthread+0x405/0x4f0 kernel/kthread.c:327
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295
 </TASK>