floppy_work.func=floppy_work_workfn
cont=ffffffff8a422360
current_req=0000000000000000
command_status=-1
------------[ cut here ]------------
WARNING: CPU: 3 PID: 10597 at drivers/block/floppy.c:999 schedule_bh drivers/block/floppy.c:999 [inline]
WARNING: CPU: 3 PID: 10597 at drivers/block/floppy.c:999 floppy_interrupt+0x329/0x3a0 drivers/block/floppy.c:1765
Modules linked in:
CPU: 3 PID: 10597 Comm: kworker/u17:1 Not tainted 6.0.0-rc3-syzkaller-00792-gdcf8e5633e2e #0
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.14.0-2 04/01/2014
Workqueue: events_unbound toggle_allocation_gate
RIP: 0010:schedule_bh drivers/block/floppy.c:999 [inline]
RIP: 0010:floppy_interrupt+0x329/0x3a0 drivers/block/floppy.c:1765
Code: fe ff ff e8 69 d3 ec fc 0f b6 1d 42 4d 00 0c 31 ff 89 de e8 d9 cf ec fc 84 db 0f 85 49 41 b2 04 e9 1a fe ff ff e8 47 d3 ec fc <0f> 0b e9 68 ff ff ff e8 9b 56 39 fd e9 ef fd ff ff e8 91 56 39 fd
RSP: 0018:ffffc900005d8e58 EFLAGS: 00010046
RAX: 0000000080010001 RBX: 0000000000000001 RCX: 0000000000000000
RDX: ffff88801ad0bb00 RSI: ffffffff848e9b79 RDI: 0000000000000001
RBP: 0000000000000001 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000001 R11: 0000000000000000 R12: 0000000000000003
R13: ffffffff848e4d10 R14: 0000000000000000 R15: 0000000000000006
FS:  0000000000000000(0000) GS:ffff88802cd00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00000000f7f92db0 CR3: 000000000ba8e000 CR4: 0000000000150ee0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <IRQ>
 floppy_hardint+0x1ad/0x200 arch/x86/include/asm/floppy.h:66
 __handle_irq_event_percpu+0x227/0x870 kernel/irq/handle.c:158
 handle_irq_event_percpu kernel/irq/handle.c:193 [inline]
 handle_irq_event+0xa7/0x1e0 kernel/irq/handle.c:210
 handle_edge_irq+0x25f/0xd00 kernel/irq/chip.c:819
 generic_handle_irq_desc include/linux/irqdesc.h:158 [inline]
 handle_irq arch/x86/kernel/irq.c:231 [inline]
 __common_interrupt+0x9d/0x210 arch/x86/kernel/irq.c:250
 common_interrupt+0xa4/0xc0 arch/x86/kernel/irq.c:240
 </IRQ>
 <TASK>
 asm_common_interrupt+0x22/0x40 arch/x86/include/asm/idtentry.h:640
RIP: 0010:csd_lock_wait kernel/smp.c:443 [inline]
RIP: 0010:smp_call_function_many_cond+0x572/0xfb0 kernel/smp.c:988
Code: 0a 00 85 ed 74 4d 48 b8 00 00 00 00 00 fc ff df 4d 89 f4 4c 89 f5 49 c1 ec 03 83 e5 07 49 01 c4 83 c5 03 e8 d0 6d 0a 00 f3 90 <41> 0f b6 04 24 40 38 c5 7c 08 84 c0 0f 85 46 08 00 00 8b 43 08 31
RSP: 0018:ffffc90022aa79d0 EFLAGS: 00000293
RAX: 0000000000000000 RBX: ffff88802cc423c0 RCX: 0000000000000000
RDX: ffff88801ad0bb00 RSI: ffffffff817100f0 RDI: 0000000000000005
RBP: 0000000000000003 R08: 0000000000000005 R09: 0000000000000000
R10: 0000000000000001 R11: 0000000000000000 R12: ffffed1005988479
R13: 0000000000000002 R14: ffff88802cc423c8 R15: 0000000000000001
 on_each_cpu_cond_mask+0x56/0xa0 kernel/smp.c:1154
 on_each_cpu include/linux/smp.h:71 [inline]
 text_poke_sync arch/x86/kernel/alternative.c:1302 [inline]
 text_poke_bp_batch+0x233/0x6c0 arch/x86/kernel/alternative.c:1490
 text_poke_flush arch/x86/kernel/alternative.c:1660 [inline]
 text_poke_flush arch/x86/kernel/alternative.c:1657 [inline]
 text_poke_finish+0x16/0x30 arch/x86/kernel/alternative.c:1667
 arch_jump_label_transform_apply+0x13/0x20 arch/x86/kernel/jump_label.c:146
 jump_label_update+0x32f/0x410 kernel/jump_label.c:801
 static_key_enable_cpuslocked+0x1b1/0x260 kernel/jump_label.c:177
 static_key_enable+0x16/0x20 kernel/jump_label.c:190
 toggle_allocation_gate mm/kfence/core.c:811 [inline]
 toggle_allocation_gate+0x100/0x390 mm/kfence/core.c:803
 process_one_work+0x991/0x1610 kernel/workqueue.c:2289
 worker_thread+0x665/0x1080 kernel/workqueue.c:2436
 kthread+0x2e4/0x3a0 kernel/kthread.c:376
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:306
 </TASK>
----------------
Code disassembly (best guess):
   0:	0a 00                	or     (%rax),%al
   2:	85 ed                	test   %ebp,%ebp
   4:	74 4d                	je     0x53
   6:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   d:	fc ff df
  10:	4d 89 f4             	mov    %r14,%r12
  13:	4c 89 f5             	mov    %r14,%rbp
  16:	49 c1 ec 03          	shr    $0x3,%r12
  1a:	83 e5 07             	and    $0x7,%ebp
  1d:	49 01 c4             	add    %rax,%r12
  20:	83 c5 03             	add    $0x3,%ebp
  23:	e8 d0 6d 0a 00       	callq  0xa6df8
  28:	f3 90                	pause
* 2a:	41 0f b6 04 24       	movzbl (%r12),%eax <-- trapping instruction
  2f:	40 38 c5             	cmp    %al,%bpl
  32:	7c 08                	jl     0x3c
  34:	84 c0                	test   %al,%al
  36:	0f 85 46 08 00 00    	jne    0x882
  3c:	8b 43 08             	mov    0x8(%rbx),%eax
  3f:	31                   	.byte 0x31