==================================================================
BUG: KASAN: use-after-free in filp_close+0x22/0x160
Read of size 8 at addr ffff88801d40ca70 by task syz-executor.0/5306

CPU: 1 PID: 5306 Comm: syz-executor.0 Not tainted 5.18.0-next-20220602 #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/0x5db
 kasan_report+0xbe/0x1c0
 kasan_check_range+0xf9/0x1e0
 filp_close+0x22/0x160
 close_fd+0x76/0xa0
 __x64_sys_close+0x2f/0xa0
 do_syscall_64+0x3b/0x90
 entry_SYSCALL_64_after_hwframe+0x46/0xb0
RIP: 0033:0x7fafbe0ea72b
Code: 0f 05 48 3d 00 f0 ff ff 77 45 c3 0f 1f 40 00 48 83 ec 18 89 7c 24 0c e8 63 fc ff ff 8b 7c 24 0c 41 89 c0 b8 03 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 35 44 89 c7 89 44 24 0c e8 a1 fc ff ff 8b 44
RSP: 002b:00007ffe92aca370 EFLAGS: 00000293 ORIG_RAX: 0000000000000003
RAX: ffffffffffffffda RBX: 0000000000000008 RCX: 00007fafbe0ea72b
RDX: 00007fafbe250308 RSI: ffffffff8132a46a RDI: 0000000000000007
RBP: 0000000000000001 R08: 0000000000000000 R09: 0000001b2dc28b50
R10: 00000000000011f5 R11: 0000000000000293 R12: 000000000007e4cf
R13: 00000000000003e8 R14: 00007fafbe24af60 R15: 000000000007e471
 </TASK>

Allocated by task 5308:
 kasan_save_stack+0x1e/0x40
 __kasan_slab_alloc+0x66/0x80
 kmem_cache_alloc+0x1aa/0x480
 __alloc_file+0x21/0x230
 alloc_empty_file+0x6d/0x170
 path_openat+0xe1/0x2870
 do_filp_open+0x1aa/0x400
 do_sys_openat2+0x16d/0x4c0
 __x64_sys_openat+0x13f/0x1f0
 do_syscall_64+0x3b/0x90
 entry_SYSCALL_64_after_hwframe+0x46/0xb0

Freed by task 335:
 kasan_save_stack+0x1e/0x40
 kasan_set_track+0x21/0x30
 kasan_set_free_info+0x20/0x30
 __kasan_slab_free+0x108/0x170
 kmem_cache_free+0xe0/0x420
 rcu_core+0x7e5/0x1ff0
 __do_softirq+0x270/0x8c7

Last potentially related work creation:
 kasan_save_stack+0x1e/0x40
 __kasan_record_aux_stack+0x97/0xa0
 call_rcu+0x6a/0xa20
 task_work_run+0xe2/0x1a0
 exit_to_user_mode_prepare+0x199/0x1a0
 syscall_exit_to_user_mode+0x19/0x40
 do_syscall_64+0x48/0x90
 entry_SYSCALL_64_after_hwframe+0x46/0xb0

Second to last potentially related work creation:
 kasan_save_stack+0x1e/0x40
 __kasan_record_aux_stack+0x97/0xa0
 task_work_add+0x3b/0x1f0
 fput+0xe7/0x190
 io_issue_sqe+0x2cde/0x9d80
 io_submit_sqes+0x1e31/0x7e50
 __do_sys_io_uring_enter+0x107f/0x2280
 do_syscall_64+0x3b/0x90
 entry_SYSCALL_64_after_hwframe+0x46/0xb0

The buggy address belongs to the object at ffff88801d40ca00
 which belongs to the cache filp of size 456
The buggy address is located 112 bytes inside of
 456-byte region [ffff88801d40ca00, ffff88801d40cbc8)

The buggy address belongs to the physical page:
page:00000000fcf9eb5f refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1d40c
head:00000000fcf9eb5f order:1 compound_mapcount:0 compound_pincount:0
memcg:ffff88800d1ed701
flags: 0x100000000010200(slab|head|node=0|zone=1)
raw: 0100000000010200 ffffea0000374500 dead000000000003 ffff88800802f640
raw: 0000000000000000 00000000000c000c 00000001ffffffff ffff88800d1ed701
page dumped because: kasan: bad access detected

Memory state around the buggy address:
 ffff88801d40c900: fb fb fb fb fb fb fb fb fb fc fc fc fc fc fc fc
 ffff88801d40c980: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
>ffff88801d40ca00: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
                                                             ^
 ffff88801d40ca80: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
 ffff88801d40cb00: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
==================================================================
VFS: Close: file count is 0
loop4: detected capacity change from 0 to 256
loop5: detected capacity change from 0 to 256
FAT-fs (loop5): bogus number of FAT sectors
FAT-fs (loop5): Can't find a valid FAT filesystem
loop4: detected capacity change from 0 to 256