WARNING: CPU: 0 PID: 13585 at drivers/block/floppy.c:999 schedule_bh drivers/block/floppy.c:999 [inline] WARNING: CPU: 0 PID: 13585 at drivers/block/floppy.c:999 process_fd_request+0x6b/0x70 drivers/block/floppy.c:2847 Modules linked in: CPU: 0 PID: 13585 Comm: kworker/u16:6 Not tainted 6.4.0-rc6-syzkaller-00035-g15adb51c04cc #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 20 d8 46 8d 48 8b 35 da ce e9 0c 48 c7 05 ef c9 e9 0c f0 38 24 85 e9 aa 81 2f fc e8 45 2f 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:ffffc90007b4fcf8 EFLAGS: 00010293 RAX: 0000000000000000 RBX: 0000000000000001 RCX: 0000000000000000 RDX: ffff888025e70000 RSI: ffffffff8524179b RDI: 0000000000000001 RBP: 0000000000000292 R08: 0000000000000001 R09: 0000000000000000 R10: 0000000000000001 R11: 3a317970706f6c66 R12: ffffc90007b4fdb0 R13: ffffffff8d46d8b0 R14: ffff88805d3dbb00 R15: ffff888012a49000 FS: 0000000000000000(0000) GS:ffff88802c600000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00000000f7ea55b6 CR3: 000000001c059000 CR4: 0000000000350ef0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: floppy_shutdown+0x135/0x230 drivers/block/floppy.c:1889 process_one_work+0x99a/0x15e0 kernel/workqueue.c:2405 worker_thread+0x67d/0x10c0 kernel/workqueue.c:2552 kthread+0x344/0x440 kernel/kthread.c:379 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308