R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
R13: 00007ffc98dfc71f R14: 00007f685bb22300 R15: 0000000000022000
 </TASK>
==================================================================
BUG: KASAN: use-after-free in __lock_acquire+0x4346/0x6120
Read of size 8 at addr ffff88800ed6b7b8 by task syz-executor/16550

CPU: 1 PID: 16550 Comm: syz-executor Not tainted 5.19.0-rc3-next-20220622 #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/0x5e8
 kasan_report+0xbe/0x1c0
 __lock_acquire+0x4346/0x6120
 lock_acquire+0x1a2/0x530
 _raw_spin_lock_irq+0x32/0x50
 kmemleak_scan+0x21d/0x16b0
 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: 0033:0x7f05b103e5c3
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:00007ffe96d52c98 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007ffe96d532d8 RCX: 00007f05b103e5c3
RDX: 0000000000000004 RSI: 00007f05b10f4ed9 RDI: 0000000000000003
RBP: 0000000000000003 R08: 0000000000000c22 R09: 00007ffe96dd3080
R10: 00007ffe96dd3090 R11: 0000000000000246 R12: 00007f05b1040b10
R13: 00007ffe96d54ee2 R14: 0000000000000000 R15: 00000000002f67d0
 </TASK>

Allocated by task 16551:
 kasan_save_stack+0x1e/0x40
 __kasan_slab_alloc+0x66/0x80
 kmem_cache_alloc+0x1b1/0x490
 __create_object.isra.0+0x3d/0xc10
 __kmalloc_node+0x278/0x480
 kvmalloc_node+0x41/0x1f0
 seq_read_iter+0x818/0x12b0
 kernfs_fop_read_iter+0x508/0x6e0
 new_sync_read+0x38a/0x5f0
 vfs_read+0x490/0x5d0
 ksys_read+0x127/0x250
 do_syscall_64+0x3b/0x90
 entry_SYSCALL_64_after_hwframe+0x46/0xb0

Freed by task 13:
 kasan_save_stack+0x1e/0x40
 kasan_set_track+0x21/0x30
 kasan_set_free_info+0x20/0x30
 ____kasan_slab_free+0x14b/0x1a0
 kmem_cache_free+0xe7/0x5e0
 rcu_core+0x7e2/0x2070
 __do_softirq+0x270/0x8c7

Last potentially related work creation:
 kasan_save_stack+0x1e/0x40
 __kasan_record_aux_stack+0x97/0xa0
 call_rcu+0x6a/0xa20
 kfree+0x1e1/0x5b0
 kvfree+0x42/0x50
 seq_release+0x4f/0x80
 kernfs_fop_release+0xee/0x190
 __fput+0x272/0x9d0
 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
 call_rcu+0x6a/0xa20
 kfree+0x1e1/0x5b0
 kvfree+0x42/0x50
 shmem_evict_inode+0x151/0xa70
 evict+0x284/0x610
 iput.part.0+0x52d/0x7d0
 iput+0x58/0x70
 dentry_unlink_inode+0x2b4/0x460
 __dentry_kill+0x36f/0x5c0
 dput+0x664/0xe10
 do_renameat2+0x567/0xc30
 __x64_sys_rename+0x7d/0xa0
 do_syscall_64+0x3b/0x90
 entry_SYSCALL_64_after_hwframe+0x46/0xb0

The buggy address belongs to the object at ffff88800ed6b7a0
 which belongs to the cache kmemleak_object of size 368
The buggy address is located 24 bytes inside of
 368-byte region [ffff88800ed6b7a0, ffff88800ed6b910)

The buggy address belongs to the physical page:
page:00000000df28e152 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0xed6a
head:00000000df28e152 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:
 ffff88800ed6b680: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
 ffff88800ed6b700: 00 00 00 00 00 00 00 00 00 00 00 00 fc fc fc fc
>ffff88800ed6b780: fc fc fc fc fa fb fb fb fb fb fb fb fb fb fb fb
                                        ^
 ffff88800ed6b800: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
 ffff88800ed6b880: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
==================================================================