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+0x42c9/0x5e80
Read of size 8 at addr ffff88803514cd98 by task syz-executor/13691

CPU: 0 PID: 13691 Comm: syz-executor Not tainted 6.1.0-rc1-next-20221021 #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: 0033:0x7f263926e5c3
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:00007ffc873dc348 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007ffc873dc988 RCX: 00007f263926e5c3
RDX: 0000000000000004 RSI: 00007f2639324ed9 RDI: 0000000000000003
RBP: 0000000000000002 R08: 0000000000000931 R09: 00007ffc873e8080
R10: 00007ffc873e8090 R11: 0000000000000246 R12: 00000000fffffff6
R13: 00007ffc873dcef1 R14: 0000000000000000 R15: 000000000023ea33
 </TASK>

Allocated by task 13634:
 kasan_save_stack+0x1e/0x50
 kasan_set_track+0x21/0x40
 __kasan_slab_alloc+0x58/0x80
 kmem_cache_alloc+0x1a9/0x3f0
 __create_object+0x3d/0xc20
 kmem_cache_alloc+0x235/0x3f0
 __alloc_file+0x21/0x250
 alloc_empty_file+0x6d/0x180
 alloc_file+0x59/0x810
 alloc_file_pseudo+0x16a/0x260
 __anon_inode_getfile+0xe1/0x260
 anon_inode_getfd+0x52/0xc0
 pidfd_create+0xe5/0x180
 __x64_sys_pidfd_open+0x9a/0xf0
 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_bulk.part.0+0x305/0x780
 mas_destroy+0x380/0x570
 mas_store_prealloc+0xf0/0x170
 __vma_adjust+0xc5f/0x1ad0
 __split_vma+0x4c3/0x5e0
 do_mas_align_munmap.constprop.0+0x62d/0x1010
 do_mas_munmap+0x1e8/0x2c0
 mmap_region+0x21c/0x1a20
 do_mmap+0x828/0xf50
 vm_mmap_pgoff+0x1af/0x280
 ksys_mmap_pgoff+0x3d0/0x500
 do_syscall_64+0x3b/0xa0
 entry_SYSCALL_64_after_hwframe+0x72/0xdc

The buggy address belongs to the object at ffff88803514cd80
 which belongs to the cache kmemleak_object of size 368
The buggy address is located 24 bytes inside of
 368-byte region [ffff88803514cd80, ffff88803514cef0)

The buggy address belongs to the physical page:
page:00000000c837b8ef refcount:1 mapcount:0 mapping:0000000000000000 index:0xffffea000106ea20 pfn:0x3514c
head:00000000c837b8ef order:1 compound_mapcount:0 compound_pincount:0
flags: 0x100000000010200(slab|head|node=0|zone=1)
raw: 0100000000010200 ffff88800804f780 dead000000120011 ffff88803514cf30
raw: ffffea000106ea20 ffffea00010886a0 00000001ffffffff 0000000000000000
page dumped because: kasan: bad access detected

Memory state around the buggy address:
 ffff88803514cc80: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
 ffff88803514cd00: fb fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc
>ffff88803514cd80: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
                            ^
 ffff88803514ce00: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
 ffff88803514ce80: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fc fc
==================================================================