loop4: detected capacity change from 0 to 27
FAT-fs (loop4): Unrecognized mount option "odir" or missing value
loop3: detected capacity change from 0 to 208
==================================================================
BUG: KASAN: stack-out-of-bounds in unwind_next_frame+0x1aa1/0x22d0
Read of size 8 at addr ffff888041267738 by task systemd-udevd/13372

CPU: 0 PID: 13372 Comm: systemd-udevd Not tainted 6.2.0-rc8-next-20230214 #1
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014
Call Trace:
 <IRQ>
 dump_stack_lvl+0x91/0xf0
 print_report+0xcc/0x620
 kasan_report+0xc0/0xf0
 unwind_next_frame+0x1aa1/0x22d0
 arch_stack_walk+0x87/0xf0
 stack_trace_save+0x90/0xd0
 kasan_save_stack+0x22/0x50
 kasan_set_track+0x25/0x30
 kasan_save_free_info+0x2e/0x50
 __kasan_slab_free+0x10a/0x190
 kmem_cache_free+0xff/0x510
 rcu_core+0x822/0x1d40
 __do_softirq+0x258/0x8a2
 __irq_exit_rcu+0xcc/0x110
 irq_exit_rcu+0x9/0x20
 sysvec_apic_timer_interrupt+0x6e/0x90
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x1a/0x20
RIP: 0010:strlen+0x69/0xa0
Code: df 48 89 e8 48 83 c0 01 48 89 c2 48 89 c1 48 c1 ea 03 83 e1 07 0f b6 14 1a 38 ca 7f 04 84 d2 75 27 80 38 00 75 de 48 83 c4 08 <48> 29 e8 5b 5d e9 91 b8 05 00 48 83 c4 08 31 c0 5b 5d e9 84 b8 05
RSP: 0018:ffff888041267690 EFLAGS: 00000296
RAX: ffffffff848f0aea RBX: dffffc0000000000 RCX: 0000000000000002
RDX: 0000000000000003 RSI: ffffffff856bf0a0 RDI: ffffffff848f0ae0
RBP: ffffffff848f0ae0 R08: 0000000000000000 R09: 0000000000000001
R10: fffffbfff0ba4882 R11: 0000000000000001 R12: 0000000000000000
R13: 1ffff1100824cedc R14: ffff888041267760 R15: ffffffff8550e1c0
 entry_SYSCALL_64_after_hwframe+0x72/0xdc
RIP: 0046:lock_release+0x1e3/0x710
RSP: 851c2f40:0000000041b58ab3 EFLAGS: ffff888018ab3ed8 ORIG_RAX: ffff888018ab3580
RAX: 0000000000000003 RBX: ffffffff856bf0a0 RCX: 1ffff1100824cee9
RDX: ffffffff856d5db8 RSI: ffffffff817fa36d RDI: 0000000000000003
RBP: 1ffff1100824cedc R08: ffffffff812bed1c R09: ffffffff812b6390
R10: ffffffff851c2b50 R11: 0000000041b58ab3 R12: ffffffff856bf0b8
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
 </TASK>

The buggy address belongs to stack of task systemd-udevd/13372
 and is located at offset 88 in frame:
 perf_trace_lock_acquire+0x0/0x500

This frame has 2 objects:
 [48, 52) 'rctx'
 [64, 72) '__regs'

The buggy address belongs to the physical page:
page:00000000d63adda5 refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x41267
flags: 0x100000000000000(node=0|zone=1)
raw: 0100000000000000 0000000000000000 ffffea00010499c8 0000000000000000
raw: 0000000000000000 0000000000000000 00000000ffffffff 0000000000000000
page dumped because: kasan: bad access detected

Memory state around the buggy address:
 ffff888041267600: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
 ffff888041267680: 00 00 00 00 00 00 00 00 00 00 00 00 f1 f1 f1 f1
>ffff888041267700: f1 f1 04 f2 00 f3 f3 f3 00 00 00 00 00 00 00 00
                                        ^
 ffff888041267780: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
 ffff888041267800: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
==================================================================
----------------
Code disassembly (best guess):
   0:	df 48 89             	fisttps -0x77(%rax)
   3:	e8 48 83 c0 01       	callq  0x1c08350
   8:	48 89 c2             	mov    %rax,%rdx
   b:	48 89 c1             	mov    %rax,%rcx
   e:	48 c1 ea 03          	shr    $0x3,%rdx
  12:	83 e1 07             	and    $0x7,%ecx
  15:	0f b6 14 1a          	movzbl (%rdx,%rbx,1),%edx
  19:	38 ca                	cmp    %cl,%dl
  1b:	7f 04                	jg     0x21
  1d:	84 d2                	test   %dl,%dl
  1f:	75 27                	jne    0x48
  21:	80 38 00             	cmpb   $0x0,(%rax)
  24:	75 de                	jne    0x4
  26:	48 83 c4 08          	add    $0x8,%rsp
* 2a:	48 29 e8             	sub    %rbp,%rax <-- trapping instruction
  2d:	5b                   	pop    %rbx
  2e:	5d                   	pop    %rbp
  2f:	e9 91 b8 05 00       	jmpq   0x5b8c5
  34:	48 83 c4 08          	add    $0x8,%rsp
  38:	31 c0                	xor    %eax,%eax
  3a:	5b                   	pop    %rbx
  3b:	5d                   	pop    %rbp
  3c:	e9                   	.byte 0xe9
  3d:	84                   	.byte 0x84
  3e:	b8                   	.byte 0xb8
  3f:	05                   	.byte 0x5