------------[ cut here ]------------
WARNING: CPU: 2 PID: 3134 at drivers/block/floppy.c:1000 schedule_bh+0x5f/0x70 drivers/block/floppy.c:1000
Modules linked in:
CPU: 2 PID: 3134 Comm: udevd Not tainted 5.16.0-rc2-syzkaller #0
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.14.0-2 04/01/2014
RIP: 0010:schedule_bh+0x5f/0x70 drivers/block/floppy.c:1000
Code: d7 78 fc fc 48 89 2d d0 5e 00 0c 5b 48 c7 c2 e0 41 6a 8c 48 8b 35 a1 63 00 0c bf 08 00 00 00 5d e9 86 fb d0 fc e8 b1 78 fc fc <0f> 0b eb d1 66 66 2e 0f 1f 84 00 00 00 00 00 66 90 e8 9b 78 fc fc
RSP: 0018:ffffc90000780c78 EFLAGS: 00010046
RAX: 0000000000000000 RBX: 0000000000000001 RCX: 0000000000000100
RDX: ffff888019be60c0 RSI: ffffffff847a5a2f RDI: 0000000000000003
RBP: ffffffff847a7f40 R08: 0000000000000000 R09: ffffffff8c6a41e7
R10: ffffffff847a59ff R11: 0000000000000001 R12: 0000000000000001
R13: ffffffff847a7f40 R14: 0000000000000000 R15: ffff888010de5000
FS:  00007f16629e2840(0000) GS:ffff88802cc00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000659ee0 CR3: 000000001c5d2000 CR4: 0000000000150ee0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <IRQ>
 floppy_interrupt+0x228/0x340 drivers/block/floppy.c:1766
 floppy_hardint+0x1a7/0x200 arch/x86/include/asm/floppy.h:66
 __handle_irq_event_percpu+0x303/0x8f0 kernel/irq/handle.c:158
 handle_irq_event_percpu kernel/irq/handle.c:198 [inline]
 handle_irq_event+0x102/0x280 kernel/irq/handle.c:215
 handle_edge_irq+0x25f/0xd00 kernel/irq/chip.c:822
 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+0x4d/0xc0 arch/x86/kernel/irq.c:240
 asm_common_interrupt+0x1e/0x40 arch/x86/include/asm/idtentry.h:629
RIP: 0010:__do_softirq+0x196/0x9c2 kernel/softirq.c:544
Code: 00 48 01 f0 48 89 44 24 18 48 c7 c7 40 90 aa 89 e8 ef ed c3 ff 65 66 c7 05 75 8f 83 76 00 00 e8 80 15 fd f7 fb b8 ff ff ff ff <48> c7 c3 c0 a0 80 8b 41 0f bc c5 41 89 c7 41 83 c7 01 75 47 e9 bd
RSP: 0018:ffffc90000780f70 EFLAGS: 00000206
RAX: 00000000ffffffff RBX: ffff888019be60c0 RCX: 1ffffffff1b21739
RDX: 0000000000000000 RSI: 0000000000000100 RDI: 0000000000000000
RBP: ffff888011a861c0 R08: 0000000000000001 R09: 0000000000000001
R10: ffffffff817d1748 R11: 0000000000000001 R12: 0000000000000000
R13: 0000000000000200 R14: 0000000000000000 R15: 0000000000000000
 invoke_softirq kernel/softirq.c:432 [inline]
 __irq_exit_rcu+0x123/0x180 kernel/softirq.c:636
 irq_exit_rcu+0x5/0x20 kernel/softirq.c:648
 sysvec_apic_timer_interrupt+0x93/0xc0 arch/x86/kernel/apic/apic.c:1097
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:638
RIP: 0010:__sanitizer_cov_trace_pc+0x37/0x60 kernel/kcov.c:200
Code: 81 e1 00 01 00 00 65 48 8b 14 25 40 70 02 00 a9 00 01 ff 00 74 0e 85 c9 74 35 8b 82 a4 15 00 00 85 c0 74 2b 8b 82 80 15 00 00 <83> f8 02 75 20 48 8b 8a 88 15 00 00 8b 92 84 15 00 00 48 8b 01 48
RSP: 0018:ffffc90000de7858 EFLAGS: 00000246
RAX: 0000000000000000 RBX: 0000000000000001 RCX: 0000000000000000
RDX: ffff888019be60c0 RSI: ffffffff83aa2921 RDI: 0000000000000003
RBP: ffff88801c39c600 R08: 0000000000000000 R09: 0000000000000001
R10: ffffffff83aa2917 R11: 0000000000000010 R12: 0000000000000022
R13: 0000000000000047 R14: dffffc0000000000 R15: 0000000000000001
 tomoyo_domain_quota_is_ok+0x311/0x550 security/tomoyo/util.c:1094
 tomoyo_supervisor+0x2f2/0xf00 security/tomoyo/common.c:2089
 tomoyo_audit_path_log security/tomoyo/file.c:168 [inline]
 tomoyo_path_permission security/tomoyo/file.c:587 [inline]
 tomoyo_path_permission+0x270/0x3a0 security/tomoyo/file.c:573
 tomoyo_path_perm+0x2f0/0x400 security/tomoyo/file.c:838
 security_inode_getattr+0xcf/0x140 security/security.c:1334
 vfs_getattr fs/stat.c:157 [inline]
 vfs_statx+0x164/0x390 fs/stat.c:225
 vfs_fstatat fs/stat.c:243 [inline]
 __do_sys_newfstatat+0x96/0x120 fs/stat.c:412
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x7f1662b391da
Code: 48 89 f2 b9 00 01 00 00 48 89 fe bf 9c ff ff ff e9 0b 00 00 00 66 2e 0f 1f 84 00 00 00 00 00 90 41 89 ca b8 06 01 00 00 0f 05 <3d> 00 f0 ff ff 77 07 31 c0 c3 0f 1f 40 00 48 8b 15 69 fc 0c 00 f7
RSP: 002b:00007ffd60f72d08 EFLAGS: 00000202 ORIG_RAX: 0000000000000106
RAX: ffffffffffffffda RBX: 000055752bcb7710 RCX: 00007f1662b391da
RDX: 00007ffd60f72d10 RSI: 00007f1662bcf75a RDI: 000000000000000d
RBP: 000000000000000d R08: 0000000000090800 R09: 000055752bcd0280
R10: 0000000000001000 R11: 0000000000000202 R12: 00007ffd60f72d10
R13: 00000000000000ff R14: 00007ffd60f72e00 R15: 0000000000000000
 </TASK>
----------------
Code disassembly (best guess):
   0:	00 48 01             	add    %cl,0x1(%rax)
   3:	f0 48 89 44 24 18    	lock mov %rax,0x18(%rsp)
   9:	48 c7 c7 40 90 aa 89 	mov    $0xffffffff89aa9040,%rdi
  10:	e8 ef ed c3 ff       	callq  0xffc3ee04
  15:	65 66 c7 05 75 8f 83 	movw   $0x0,%gs:0x76838f75(%rip)        # 0x76838f94
  1c:	76 00 00
  1f:	e8 80 15 fd f7       	callq  0xf7fd15a4
  24:	fb                   	sti
  25:	b8 ff ff ff ff       	mov    $0xffffffff,%eax
* 2a:	48 c7 c3 c0 a0 80 8b 	mov    $0xffffffff8b80a0c0,%rbx <-- trapping instruction
  31:	41 0f bc c5          	bsf    %r13d,%eax
  35:	41 89 c7             	mov    %eax,%r15d
  38:	41 83 c7 01          	add    $0x1,%r15d
  3c:	75 47                	jne    0x85
  3e:	e9                   	.byte 0xe9
  3f:	bd                   	.byte 0xbd