------------[ cut here ]------------
WARNING: CPU: 3 PID: 27463 at drivers/block/floppy.c:999 schedule_bh drivers/block/floppy.c:999 [inline]
WARNING: CPU: 3 PID: 27463 at drivers/block/floppy.c:999 wait_til_done+0x3b1/0x420 drivers/block/floppy.c:2018
Modules linked in:
CPU: 3 PID: 27463 Comm: syz-executor.3 Not tainted 6.5.0-rc6-syzkaller-00253-g9e6c269de404 #0
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
RIP: 0010:schedule_bh drivers/block/floppy.c:999 [inline]
RIP: 0010:wait_til_done+0x3b1/0x420 drivers/block/floppy.c:2018
Code: fc 41 83 fd 01 7e ac e8 dd e3 4f fc 4c 89 e6 48 c7 c7 80 93 6e 8d e8 9e 15 2d fc e8 c9 e3 4f fc e9 68 fd ff ff e8 bf e3 4f fc <0f> 0b e9 ef fc ff ff e8 93 f0 a3 fc e9 b4 fd ff ff e8 a9 e3 4f fc
RSP: 0018:ffffc9002038f800 EFLAGS: 00010287
RAX: 000000000000098d RBX: 1ffff92004071f00 RCX: ffffc9000cd47000
RDX: 0000000000040000 RSI: ffffffff853624e1 RDI: 0000000000000001
RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000001 R11: 0000000000000000 R12: ffffffff8535ed10
R13: 0000000000000000 R14: 0000000000000001 R15: 0000000000000001
FS:  0000000000000000(0000) GS:ffff88802c900000(0063) knlGS:00000000f7fc4b40
CS:  0010 DS: 002b ES: 002b CR0: 0000000080050033
CR2: 0000000056c86480 CR3: 0000000062135000 CR4: 0000000000350ee0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 floppy_revalidate.isra.0+0x3df/0xca0 drivers/block/floppy.c:4211
 floppy_open+0xa74/0xe00 drivers/block/floppy.c:4059
 blkdev_get_whole+0x93/0x2c0 block/bdev.c:657
 blkdev_get_by_dev.part.0+0x211/0xb20 block/bdev.c:812
 blkdev_get_by_dev+0x75/0x80 block/bdev.c:846
 blkdev_open+0x112/0x380 block/fops.c:518
 do_dentry_open+0x88b/0x1780 fs/open.c:914
 do_open fs/namei.c:3636 [inline]
 path_openat+0x19af/0x29c0 fs/namei.c:3793
 do_filp_open+0x1de/0x430 fs/namei.c:3820
 do_sys_openat2+0x176/0x1e0 fs/open.c:1407
 do_sys_open fs/open.c:1422 [inline]
 __do_compat_sys_openat fs/open.c:1482 [inline]
 __se_compat_sys_openat fs/open.c:1480 [inline]
 __ia32_compat_sys_openat+0x16e/0x200 fs/open.c:1480
 do_syscall_32_irqs_on arch/x86/entry/common.c:112 [inline]
 __do_fast_syscall_32+0x61/0xe0 arch/x86/entry/common.c:178
 do_fast_syscall_32+0x33/0x70 arch/x86/entry/common.c:203
 entry_SYSENTER_compat_after_hwframe+0x70/0x82
RIP: 0023:0xf7fc9579
Code: b8 01 10 06 03 74 b4 01 10 07 03 74 b0 01 10 08 03 74 d8 01 00 00 00 00 00 00 00 00 00 00 00 00 00 51 52 55 89 e5 0f 34 cd 80 <5d> 5a 59 c3 90 90 90 90 8d b4 26 00 00 00 00 8d b4 26 00 00 00 00
RSP: 002b:00000000f7fc4150 EFLAGS: 00000293 ORIG_RAX: 0000000000000127
RAX: ffffffffffffffda RBX: 00000000ffffff9c RCX: 00000000f7fc41a0
RDX: 0000000000101000 RSI: 0000000000000000 RDI: 00000000f7353ff4
RBP: 0000000000101000 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000292 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
 </TASK>
----------------
Code disassembly (best guess), 2 bytes skipped:
   0:	10 06                	adc    %al,(%rsi)
   2:	03 74 b4 01          	add    0x1(%rsp,%rsi,4),%esi
   6:	10 07                	adc    %al,(%rdi)
   8:	03 74 b0 01          	add    0x1(%rax,%rsi,4),%esi
   c:	10 08                	adc    %cl,(%rax)
   e:	03 74 d8 01          	add    0x1(%rax,%rbx,8),%esi
  1e:	00 51 52             	add    %dl,0x52(%rcx)
  21:	55                   	push   %rbp
  22:	89 e5                	mov    %esp,%ebp
  24:	0f 34                	sysenter
  26:	cd 80                	int    $0x80
* 28:	5d                   	pop    %rbp <-- trapping instruction
  29:	5a                   	pop    %rdx
  2a:	59                   	pop    %rcx
  2b:	c3                   	ret
  2c:	90                   	nop
  2d:	90                   	nop
  2e:	90                   	nop
  2f:	90                   	nop
  30:	8d b4 26 00 00 00 00 	lea    0x0(%rsi,%riz,1),%esi
  37:	8d b4 26 00 00 00 00 	lea    0x0(%rsi,%riz,1),%esi