loop2: detected capacity change from 0 to 264192
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BUG: KASAN: use-after-free in __lock_acquire+0x42c9/0x5e80
Read of size 8 at addr ffff8880234c5738 by task syz-executor/15528

CPU: 0 PID: 15528 Comm: syz-executor Not tainted 6.1.0-rc3-next-20221102 #1
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014
Call Trace:
 <TASK>
 dump_stack_lvl+0x8b/0xc3
 print_report+0x175/0x478
 kasan_report+0xbb/0x1d0
 __lock_acquire+0x42c9/0x5e80
 lock_acquire+0x1a2/0x540
 _raw_spin_lock_irq+0x32/0x60
 kmemleak_scan+0x1a0/0x1610
 kmemleak_write+0x570/0x690
 full_proxy_write+0x11d/0x1a0
 vfs_write+0x2cb/0xda0
 ksys_write+0x127/0x260
 do_syscall_64+0x3b/0xa0
 entry_SYSCALL_64_after_hwframe+0x72/0xdc
RIP: 0033:0x7fc80693b5c3
Code: 16 00 00 00 eb ae 90 b8 6e 00 00 00 eb a6 e8 44 ef 04 00 0f 1f 40 00 64 8b 04 25 18 00 00 00 85 c0 75 14 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 55 c3 0f 1f 40 00 48 83 ec 28 48 89 54 24 18
RSP: 002b:00007ffed8c43ef8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007ffed8c44538 RCX: 00007fc80693b5c3
RDX: 0000000000000004 RSI: 00007fc8069f1ed9 RDI: 0000000000000003
RBP: 0000000000000002 R08: 0000000000000add R09: 00007ffed8d98080
R10: 00007ffed8d98090 R11: 0000000000000246 R12: 00000000fffffff6
R13: 00007ffed8c44ef1 R14: 0000000000000000 R15: 00000000002a6f82
 </TASK>

Allocated by task 15529:
 kasan_save_stack+0x1e/0x50
 kasan_set_track+0x21/0x40
 __kasan_slab_alloc+0x58/0x80
 kmem_cache_alloc+0x1a9/0x3f0
 __create_object+0x3d/0xc10
 kmem_cache_alloc+0x235/0x3f0
 __alloc_file+0x21/0x250
 alloc_empty_file+0x6d/0x180
 path_openat+0xd4/0x29c0
 do_filp_open+0x1b6/0x420
 do_sys_openat2+0x171/0x4d0
 __x64_sys_openat+0x13f/0x200
 do_syscall_64+0x3b/0xa0
 entry_SYSCALL_64_after_hwframe+0x72/0xdc

Freed by task 19:
 kasan_save_stack+0x1e/0x50
 kasan_set_track+0x21/0x40
 kasan_save_free_info+0x2a/0x60
 __kasan_slab_free+0x106/0x1a0
 kmem_cache_free+0xf7/0x620
 rcu_core+0x7e2/0x2090
 __do_softirq+0x1c3/0x8f5

Last potentially related work creation:
 kasan_save_stack+0x1e/0x50
 __kasan_record_aux_stack+0x95/0xc0
 __call_rcu_common.constprop.0+0x6a/0xa50
 kmem_cache_free+0xbd/0x620
 rcu_core+0x7e2/0x2090
 __do_softirq+0x1c3/0x8f5

Second to last potentially related work creation:
 kasan_save_stack+0x1e/0x50
 __kasan_record_aux_stack+0x95/0xc0
 __call_rcu_common.constprop.0+0x6a/0xa50
 kmem_cache_free+0xbd/0x620
 exit_mmap+0x24f/0x690
 mmput+0xd1/0x3a0
 do_exit+0x993/0x2730
 do_group_exit+0xd0/0x2b0
 __x64_sys_exit_group+0x3a/0x60
 do_syscall_64+0x3b/0xa0
 entry_SYSCALL_64_after_hwframe+0x72/0xdc

The buggy address belongs to the object at ffff8880234c5720
 which belongs to the cache kmemleak_object of size 240
The buggy address is located 24 bytes inside of
 240-byte region [ffff8880234c5720, ffff8880234c5810)

The buggy address belongs to the physical page:
page:0000000069d50d91 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x234c5
flags: 0x100000000000200(slab|node=0|zone=1)
raw: 0100000000000200 ffff888007c4f780 ffffea00005a4e00 dead000000000002
raw: 0000000000000000 00000000000d000d 00000001ffffffff 0000000000000000
page dumped because: kasan: bad access detected

Memory state around the buggy address:
 ffff8880234c5600: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
 ffff8880234c5680: 00 00 00 00 00 00 00 00 00 00 00 00 fc fc fc fc
>ffff8880234c5700: fc fc fc fc fa fb fb fb fb fb fb fb fb fb fb fb
                                        ^
 ffff8880234c5780: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
 ffff8880234c5800: fb fb fc fc fc fc fc fc fc fc 00 00 00 00 00 00
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