KASAN: use-after-free Read in chroot_fs_refs

#	Log	Report	Time	Tag
4	log	report	2021/08/20 09:48
3	log	report	2021/08/20 02:02
2	log	report	2021/08/11 12:06
1	log	report	2021/08/09 16:47
0	log	report	2021/08/01 16:49	attempted re