BUG: unable to handle page fault for address: ffffed100fffc000
#PF: supervisor write access in kernel mode
#PF: error_code(0x0002) - not-present page
PGD 7ffd3067 P4D 7ffd3067 PUD 7ffd2067 PMD 7ffd1067 PTE 0
Oops: 0002 [#1] PREEMPT SMP KASAN NOPTI
CPU: 0 PID: 7531 Comm: syz-executor.0 Not tainted 6.1.0-rc3-next-20221031 #1
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014
RIP: 0010:__memset+0x24/0x50
Code: 90 90 90 90 90 90 0f 1f 44 00 00 49 89 f9 48 89 d1 83 e2 07 48 c1 e9 03 40 0f b6 f6 48 b8 01 01 01 01 01 01 01 01 48 0f af c6 <f3> 48 ab 89 d1 f3 aa 4c 89 c8 e9 4d d4 12 00 66 66 2e 0f 1f 84 00
RSP: 0018:ffff888042bd7cc0 EFLAGS: 00010212
RAX: 0000000000000000 RBX: ffff88800ab2f0c0 RCX: 1ffffe21fe559f03
RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffed100fffc000
RBP: ffff88800ab2d000 R08: 0000000000000005 R09: ffffed1001565e18
R10: 0000000000000001 R11: 0000000000000001 R12: ffff88800ab2d000
R13: ffff88800ab2f0c0 R14: ffffffff815f27a0 R15: 1ffff11001122e1f
FS:  00007fd4a3e45700(0000) GS:ffff88806d000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffffed100fffc000 CR3: 000000000dc24000 CR4: 0000000000350ef0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff4ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 kasan_unpoison+0x23/0x60
 mempool_exit+0x1c2/0x330
 bioset_exit+0x2c9/0x630
 disk_release+0x143/0x490
 device_release+0xa2/0x250
 kobject_put+0x173/0x280
 put_device+0x1b/0x40
 put_disk+0x41/0x60
 loop_control_ioctl+0x4d1/0x630
 __x64_sys_ioctl+0x19a/0x220
 do_syscall_64+0x3b/0xa0
 entry_SYSCALL_64_after_hwframe+0x72/0xdc
RIP: 0033:0x7fd4a68cfb19
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fd4a3e45188 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007fd4a69e2f60 RCX: 00007fd4a68cfb19
RDX: 0000000000000000 RSI: 0000000000004c81 RDI: 0000000000000006
RBP: 00007fd4a6929f6d R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fff472df02f R14: 00007fd4a3e45300 R15: 0000000000022000
 </TASK>
Modules linked in:
CR2: ffffed100fffc000
---[ end trace 0000000000000000 ]---
RIP: 0010:__memset+0x24/0x50
Code: 90 90 90 90 90 90 0f 1f 44 00 00 49 89 f9 48 89 d1 83 e2 07 48 c1 e9 03 40 0f b6 f6 48 b8 01 01 01 01 01 01 01 01 48 0f af c6 <f3> 48 ab 89 d1 f3 aa 4c 89 c8 e9 4d d4 12 00 66 66 2e 0f 1f 84 00
RSP: 0018:ffff888042bd7cc0 EFLAGS: 00010212
RAX: 0000000000000000 RBX: ffff88800ab2f0c0 RCX: 1ffffe21fe559f03
RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffed100fffc000
RBP: ffff88800ab2d000 R08: 0000000000000005 R09: ffffed1001565e18
R10: 0000000000000001 R11: 0000000000000001 R12: ffff88800ab2d000
R13: ffff88800ab2f0c0 R14: ffffffff815f27a0 R15: 1ffff11001122e1f
FS:  00007fd4a3e45700(0000) GS:ffff88806d000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffffed100fffc000 CR3: 000000000dc24000 CR4: 0000000000350ef0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff4ff0 DR7: 0000000000000400
loop5: detected capacity change from 0 to 512
EXT4-fs (loop5): mounted filesystem without journal. Quota mode: none.
EXT4-fs (loop5): unmounting filesystem.
Bluetooth: hci0: Opcode 0x c03 failed: -4
Bluetooth: hci0: Opcode 0x c03 failed: -4
----------------
Code disassembly (best guess):
   0:	90                   	nop
   1:	90                   	nop
   2:	90                   	nop
   3:	90                   	nop
   4:	90                   	nop
   5:	90                   	nop
   6:	0f 1f 44 00 00       	nopl   0x0(%rax,%rax,1)
   b:	49 89 f9             	mov    %rdi,%r9
   e:	48 89 d1             	mov    %rdx,%rcx
  11:	83 e2 07             	and    $0x7,%edx
  14:	48 c1 e9 03          	shr    $0x3,%rcx
  18:	40 0f b6 f6          	movzbl %sil,%esi
  1c:	48 b8 01 01 01 01 01 	movabs $0x101010101010101,%rax
  23:	01 01 01
  26:	48 0f af c6          	imul   %rsi,%rax
* 2a:	f3 48 ab             	rep stos %rax,%es:(%rdi) <-- trapping instruction
  2d:	89 d1                	mov    %edx,%ecx
  2f:	f3 aa                	rep stos %al,%es:(%rdi)
  31:	4c 89 c8             	mov    %r9,%rax
  34:	e9 4d d4 12 00       	jmpq   0x12d486
  39:	66                   	data16
  3a:	66                   	data16
  3b:	2e                   	cs
  3c:	0f                   	.byte 0xf
  3d:	1f                   	(bad)
  3e:	84 00                	test   %al,(%rax)