{"action":"created","issue":{"url":"https://api.github.com/repos/tomav/docker-mailserver/issues/126","repository_url":"https://api.github.com/repos/tomav/docker-mailserver","labels_url":"https://api.github.com/repos/tomav/docker-mailserver/issues/126/labels{/name}","comments_url":"https://api.github.com/repos/tomav/docker-mailserver/issues/126/comments","events_url":"https://api.github.com/repos/tomav/docker-mailserver/issues/126/events","html_url":"https://github.com/tomav/docker-mailserver/issues/126","id":147356813,"number":126,"title":"full host system available on guest","user":{"login":"awb99","id":10854682,"avatar_url":"https://avatars.githubusercontent.com/u/10854682?v=3","gravatar_id":"","url":"https://api.github.com/users/awb99","html_url":"https://github.com/awb99","followers_url":"https://api.github.com/users/awb99/followers","following_url":"https://api.github.com/users/awb99/following{/other_user}","gists_url":"https://api.github.com/users/awb99/gists{/gist_id}","starred_url":"https://api.github.com/users/awb99/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/awb99/subscriptions","organizations_url":"https://api.github.com/users/awb99/orgs","repos_url":"https://api.github.com/users/awb99/repos","events_url":"https://api.github.com/users/awb99/events{/privacy}","received_events_url":"https://api.github.com/users/awb99/received_events","type":"User","site_admin":false},"labels":[{"url":"https://api.github.com/repos/tomav/docker-mailserver/labels/question","name":"question","color":"cc317c"}],"state":"closed","locked":false,"assignee":null,"milestone":null,"comments":9,"created_at":"2016-04-11T08:41:56Z","updated_at":"2016-04-11T19:15:40Z","closed_at":"2016-04-11T13:45:19Z","body":"I have noticed that the full host filesystem is available on the guest. The directories that are mounted like /tmp/postfix are available ON TOP of this.\r\n\r\nI have no explanation for this really. \r\n\r\nI have checked with other docker images that I run, and the docker-mailserver is the only one for which this occurs. I checked it by doing exec -  \"ls /home\" into the container image, and I see home  directories that should exist only on the host.\r\n\r\nIt is the same behavior for both the image on dockerhub and also for builds from source from github.\r\n\r\nThis effects a lot of things I guess, because the host system also has all kind of /var/log files and /var/mail files.\r\n"},"comment":{"url":"https://api.github.com/repos/tomav/docker-mailserver/issues/comments/208508625","html_url":"https://github.com/tomav/docker-mailserver/issues/126#issuecomment-208508625","issue_url":"https://api.github.com/repos/tomav/docker-mailserver/issues/126","id":208508625,"user":{"login":"awb99","id":10854682,"avatar_url":"https://avatars.githubusercontent.com/u/10854682?v=3","gravatar_id":"","url":"https://api.github.com/users/awb99","html_url":"https://github.com/awb99","followers_url":"https://api.github.com/users/awb99/followers","following_url":"https://api.github.com/users/awb99/following{/other_user}","gists_url":"https://api.github.com/users/awb99/gists{/gist_id}","starred_url":"https://api.github.com/users/awb99/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/awb99/subscriptions","organizations_url":"https://api.github.com/users/awb99/orgs","repos_url":"https://api.github.com/users/awb99/repos","events_url":"https://api.github.com/users/awb99/events{/privacy}","received_events_url":"https://api.github.com/users/awb99/received_events","type":"User","site_admin":false},"created_at":"2016-04-11T19:15:40Z","updated_at":"2016-04-11T19:15:40Z","body":"@tomav you were exactly right. When I upgraded the debian kernel this strange behavior disappeared.Thanks 1000x for yourhelp. Strangely enough, this error ONLY appeared on docker-mailserver image."}}