Comment 4 for bug 1735953

I was mistaken about the cause of this bug. It appears that some default setting has changed, and cifs mounts need uid and gid options passed explicitly. In previous Ubuntu versions, I could mount cifs with just credentials provided I set the owners of the mount point and remote files correctly, a one-time detail. In Ubuntu 17.10, if I fail to pass uid,gid to cifs mount options, it's mounted as root:root and the only access is by everyone permissions or if I'm root.

Workaround: when mounting cifs, use options as such: defaults,uid=1001,gid=1001,credentials=[path]

Where the ids can be retrieved using 'id [name]' from the shell.