sr 1:0:0:0: [sr0] tag#0 unaligned transfer
sr 1:0:0:0: [sr0] tag#0 unaligned transfer
sr 1:0:0:0: [sr0] tag#0 unaligned transfer
==================================================================
BUG: KASAN: use-after-free in __lock_acquire+0x4346/0x6120
Read of size 8 at addr ffff888044c4d968 by task syz-executor/8655

CPU: 1 PID: 8655 Comm: syz-executor Not tainted 5.19.0-rc4-next-20220630 #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/0x5e1
 kasan_report+0xbe/0x1c0
 __lock_acquire+0x4346/0x6120
 lock_acquire+0x1a2/0x530
 _raw_spin_lock_irq+0x32/0x50
 kmemleak_scan+0x21d/0x16a0
 kmemleak_write+0x56c/0x680
 full_proxy_write+0x11d/0x190
 vfs_write+0x264/0xac0
 ksys_write+0x127/0x250
 do_syscall_64+0x3b/0x90
 entry_SYSCALL_64_after_hwframe+0x46/0xb0
RIP: 0033:0x7f5479a015c3
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:00007ffcc6590228 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007ffcc6590868 RCX: 00007f5479a015c3
RDX: 0000000000000004 RSI: 00007f5479ab7ed9 RDI: 0000000000000003
RBP: 0000000000000004 R08: 00000000000006e7 R09: 00007ffcc65c4080
R10: 00007ffcc65c4090 R11: 0000000000000246 R12: 00007f5479a03b10
R13: 00007ffcc6590ed7 R14: 0000000000000000 R15: 00000000001af7b5
 </TASK>

Allocated by task 112:
 kasan_save_stack+0x1e/0x40
 __kasan_slab_alloc+0x66/0x80
 kmem_cache_alloc+0x1b1/0x490
 __create_object.isra.0+0x3d/0xc10
 kmem_cache_alloc+0x247/0x490
 __alloc_file+0x21/0x230
 alloc_empty_file+0x6d/0x170
 path_openat+0xe1/0x2890
 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 19:
 kasan_save_stack+0x1e/0x40
 kasan_set_track+0x21/0x30
 kasan_set_free_info+0x20/0x30
 ____kasan_slab_free+0x14b/0x1a0
 kmem_cache_free+0xfb/0x600
 rcu_core+0x7e2/0x2080
 __do_softirq+0x270/0x8c7

Last potentially related work creation:
 kasan_save_stack+0x1e/0x40
 __kasan_record_aux_stack+0x97/0xa0
 call_rcu+0x6a/0xa20
 kmem_cache_free+0xc1/0x600
 rcu_core+0x7e2/0x2080
 __do_softirq+0x270/0x8c7

Second to last potentially related work creation:
 kasan_save_stack+0x1e/0x40
 __kasan_record_aux_stack+0x97/0xa0
 call_rcu+0x6a/0xa20
 kmem_cache_free+0xc1/0x600
 __put_cred+0x12e/0x180
 revert_creds+0xaf/0xd0
 do_faccessat+0x2e7/0x810
 do_syscall_64+0x3b/0x90
 entry_SYSCALL_64_after_hwframe+0x46/0xb0

The buggy address belongs to the object at ffff888044c4d950
 which belongs to the cache kmemleak_object of size 368
The buggy address is located 24 bytes inside of
 368-byte region [ffff888044c4d950, ffff888044c4dac0)

The buggy address belongs to the physical page:
page:00000000feae7645 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x44c4c
head:00000000feae7645 order:1 compound_mapcount:0 compound_pincount:0
flags: 0x100000000010200(slab|head|node=0|zone=1)
raw: 0100000000010200 0000000000000000 dead000000000001 ffff88800784f780
raw: 0000000000000000 0000000000120012 00000001ffffffff 0000000000000000
page dumped because: kasan: bad access detected

Memory state around the buggy address:
 ffff888044c4d800: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
 ffff888044c4d880: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
>ffff888044c4d900: fb fb fc fc fc fc fc fc fc fc fa fb fb fb fb fb
                                                          ^
 ffff888044c4d980: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
 ffff888044c4da00: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
==================================================================