------------[ cut here ]------------
WARNING: CPU: 2 PID: 5714 at drivers/block/floppy.c:999 schedule_bh drivers/block/floppy.c:999 [inline]
WARNING: CPU: 2 PID: 5714 at drivers/block/floppy.c:999 process_fd_request drivers/block/floppy.c:2847 [inline]
WARNING: CPU: 2 PID: 5714 at drivers/block/floppy.c:999 floppy_revalidate.isra.0+0x878/0xbf0 drivers/block/floppy.c:4210
Modules linked in:
CPU: 2 PID: 5714 Comm: syz-executor.0 Not tainted 6.4.0-rc4-syzkaller-g7877cb91f108 #0
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.14.0-2 04/01/2014
RIP: 0010:schedule_bh drivers/block/floppy.c:999 [inline]
RIP: 0010:process_fd_request drivers/block/floppy.c:2847 [inline]
RIP: 0010:floppy_revalidate.isra.0+0x878/0xbf0 drivers/block/floppy.c:4210
Code: 45 8d e8 fb 0b 1e ff 48 83 fb 07 0f 86 5d f8 ff ff 48 89 de 48 c7 c7 60 b9 45 8d e8 e2 0b 1e ff e9 49 f8 ff ff e8 e8 22 60 fc <0f> 0b e9 07 fd ff ff e8 dc 22 60 fc 48 83 fb 07 0f 87 26 03 00 00
RSP: 0018:ffffc90004a2f8d8 EFLAGS: 00010293
RAX: 0000000000000000 RBX: 0000000000000001 RCX: 0000000000000000
RDX: ffff88802a6fcbc0 RSI: ffffffff85234658 RDI: 0000000000000001
RBP: 0000000000000001 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000001 R11: 0000000000000001 R12: ffff88801f75d000
R13: ffffffff920decf0 R14: 0000000000000050 R15: 0000000000000001
FS:  00007f9d9b004700(0000) GS:ffff88806b800000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f9d9b003d38 CR3: 0000000022952000 CR4: 0000000000350ee0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 floppy_open+0xac3/0xe90 drivers/block/floppy.c:4058
 blkdev_get_whole+0x93/0x2c0 block/bdev.c:606
 blkdev_get_by_dev.part.0+0x5e2/0xb80 block/bdev.c:756
 blkdev_get_by_dev+0x6f/0x90 block/bdev.c:790
 blkdev_open+0x140/0x2d0 block/fops.c:493
 do_dentry_open+0x6cc/0x13f0 fs/open.c:920
 do_open fs/namei.c:3636 [inline]
 path_openat+0x1baa/0x2750 fs/namei.c:3791
 do_filp_open+0x1ba/0x410 fs/namei.c:3818
 do_sys_openat2+0x16d/0x4c0 fs/open.c:1356
 do_sys_open fs/open.c:1372 [inline]
 __do_sys_openat fs/open.c:1388 [inline]
 __se_sys_openat fs/open.c:1383 [inline]
 __x64_sys_openat+0x143/0x1f0 fs/open.c:1383
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x39/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f9d99e3bf64
Code: 84 00 00 00 00 00 44 89 54 24 0c e8 96 f9 ff ff 44 8b 54 24 0c 44 89 e2 48 89 ee 41 89 c0 bf 9c ff ff ff b8 01 01 00 00 0f 05 <48> 3d 00 f0 ff ff 77 34 44 89 c7 89 44 24 0c e8 c8 f9 ff ff 8b 44
RSP: 002b:00007f9d9b003ca0 EFLAGS: 00000293 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 6666666666666667 RCX: 00007f9d99e3bf64
RDX: 0000000000000000 RSI: 00007f9d9b003d40 RDI: 00000000ffffff9c
RBP: 00007f9d9b003d40 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000000
R13: 00007fff5a7f6b6f R14: 00007f9d9b004300 R15: 0000000000022000
 </TASK>