loop4: detected capacity change from 0 to 2048
EXT4-fs (loop2): unmounting filesystem.
EXT4-fs (loop4): unsupported descriptor size 0
==================================================================
BUG: KASAN: use-after-free in __lock_acquire+0x42c9/0x5e70
Read of size 8 at addr ffff888015f53968 by task syz-executor/58536

CPU: 1 PID: 58536 Comm: syz-executor Not tainted 6.0.0-rc3-next-20220829 #1
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.14.0-0-g155821a1990b-prebuilt.qemu.org 04/01/2014
Call Trace:
 <TASK>
 dump_stack_lvl+0x8b/0xb3
 print_report.cold+0x5e/0x5e5
 kasan_report+0xb1/0x1c0
 __lock_acquire+0x42c9/0x5e70
 lock_acquire+0x1a2/0x530
 _raw_spin_lock_irq+0x32/0x50
 kmemleak_scan+0x21d/0x16f0
 kmemleak_write+0x570/0x680
 full_proxy_write+0x11d/0x190
 vfs_write+0x2cb/0xd90
 ksys_write+0x127/0x250
 do_syscall_64+0x3b/0x90
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7fb5c504d5c3
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:00007fffc35ae388 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007fffc35ae9c8 RCX: 00007fb5c504d5c3
RDX: 0000000000000004 RSI: 00007fb5c5103ed9 RDI: 0000000000000003
RBP: 0000000000000002 R08: 00000000000007d4 R09: 00007fffc35da080
R10: 00007fffc35da090 R11: 0000000000000246 R12: 00000000fffffff6
R13: 00007fffc35afef1 R14: 0000000000000000 R15: 00000000001e9725
 </TASK>

Allocated by task 58131:
 kasan_save_stack+0x1e/0x40
 __kasan_slab_alloc+0x66/0x80
 kmem_cache_alloc+0x1b1/0x3e0
 __create_object.isra.0+0x3d/0xc10
 kmem_cache_alloc_lru+0x2ce/0x720
 __d_alloc+0x31/0x9a0
 d_alloc+0x46/0x1c0
 __lookup_hash+0xcc/0x190
 filename_create+0x1d6/0x4a0
 do_symlinkat+0xc4/0x2a0
 __x64_sys_symlink+0x75/0x90
 do_syscall_64+0x3b/0x90
 entry_SYSCALL_64_after_hwframe+0x63/0xcd

Freed by task 13:
 kasan_save_stack+0x1e/0x40
 kasan_set_track+0x21/0x30
 kasan_set_free_info+0x20/0x40
 __kasan_slab_free+0x108/0x190
 kmem_cache_free+0xf7/0x610
 rcu_core+0x7e2/0x2080
 __do_softirq+0x1c8/0x8d0

Last potentially related work creation:
 kasan_save_stack+0x1e/0x40
 __kasan_record_aux_stack+0x97/0xb0
 call_rcu+0x6a/0xa30
 kmem_cache_free+0xbd/0x610
 rcu_core+0x7e2/0x2080
 __do_softirq+0x1c8/0x8d0

Second to last potentially related work creation:
 kasan_save_stack+0x1e/0x40
 __kasan_record_aux_stack+0x97/0xb0
 call_rcu+0x6a/0xa30
 __kmem_cache_free+0x91/0x400
 simple_xattr_set+0x3f0/0x610
 __vfs_setxattr+0x115/0x180
 __vfs_setxattr_noperm+0x125/0x600
 __vfs_setxattr_locked+0x1d3/0x260
 vfs_setxattr+0x110/0x3c0
 setxattr+0x14d/0x170
 path_setxattr+0x19b/0x1d0
 __x64_sys_setxattr+0xc0/0x160
 do_syscall_64+0x3b/0x90
 entry_SYSCALL_64_after_hwframe+0x63/0xcd

The buggy address belongs to the object at ffff888015f53950
 which belongs to the cache kmemleak_object of size 368
The buggy address is located 24 bytes inside of
 368-byte region [ffff888015f53950, ffff888015f53ac0)

The buggy address belongs to the physical page:
page:0000000088664743 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x15f52
head:0000000088664743 order:1 compound_mapcount:0 compound_pincount:0
flags: 0x100000000010200(slab|head|node=0|zone=1)
raw: 0100000000010200 ffffea0000366d00 dead000000000004 ffff888007c4f780
raw: 0000000000000000 0000000000120012 00000001ffffffff 0000000000000000
page dumped because: kasan: bad access detected

Memory state around the buggy address:
 ffff888015f53800: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
 ffff888015f53880: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
>ffff888015f53900: fb fb fc fc fc fc fc fc fc fc fa fb fb fb fb fb
                                                          ^
 ffff888015f53980: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
 ffff888015f53a00: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
==================================================================