os/gsession: the directory permission of session store is too open in linux

[handewo]

Description

It is insecurity for session directory with mode 755, I suggest change to 700.
It is better to modify the default session directory path to ~/.cache/ .

[root@localhost ~]# ls -l /tmp/
drwxr-xr-x. 3 root root 4096 Jun  4 11:36 gsessions

Additional

No response