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WARNING: CPU: 2 PID: 20884 at drivers/block/floppy.c:999 schedule_bh drivers/block/floppy.c:999 [inline]
WARNING: CPU: 2 PID: 20884 at drivers/block/floppy.c:999 wait_til_done+0x3b1/0x420 drivers/block/floppy.c:2018
Modules linked in:
CPU: 2 PID: 20884 Comm: syz-executor.3 Not tainted 6.5.0-syzkaller-12796-g32bf43e4efdb #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 2d fb 49 fc 4c 89 e6 48 c7 c7 a0 be 8f 8d e8 ce db 26 fc e8 19 fb 49 fc e9 68 fd ff ff e8 0f fb 49 fc <0f> 0b e9 ef fc ff ff e8 e3 bb 9f fc e9 b4 fd ff ff e8 f9 fa 49 fc
RSP: 0018:ffffc90022fa7980 EFLAGS: 00010283
RAX: 0000000000001694 RBX: 1ffff920045f4f30 RCX: ffffc900079f2000
RDX: 0000000000040000 RSI: ffffffff853dd6b1 RDI: 0000000000000001
RBP: 0000000000000001 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000001 R11: 0000000000000000 R12: ffffffff853d9ee0
R13: 0000000000000001 R14: 0000000000000001 R15: 0000000000000001
FS:  0000000000000000(0000) GS:ffff88802c800000(0063) knlGS:00000000f7f63b40
CS:  0010 DS: 002b ES: 002b CR0: 0000000080050033
CR2: 00000000f720f030 CR3: 000000007031c000 CR4: 0000000000350ee0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 compat_getdrvstat+0xf1/0x810 drivers/block/floppy.c:3787
 fd_compat_ioctl+0x155a/0x1d00 drivers/block/floppy.c:3902
 compat_blkdev_ioctl+0x2fe/0x7c0 block/ioctl.c:684
 __do_compat_sys_ioctl+0x2bf/0x330 fs/ioctl.c:972
 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: 0023:0xf7f89579
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:00000000f7f635ac EFLAGS: 00000292 ORIG_RAX: 0000000000000036
RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000080340213
RDX: 0000000020002180 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000000000 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