{"action":"created","comment":{"url":"https://api.github.com/repos/systemd/systemd/pulls/comments/62252568","id":62252568,"diff_hunk":"@@ -297,6 +297,13 @@\n       </varlistentry>\n \n       <varlistentry>\n+        <term><varname>InhibitorsMax=</varname></term>\n+\n+        <listitem><para>Controls the maximum number of concurrent inhibitors to permit. Defaults to 8192\n+        (8K).</para></listitem>\n+      </varlistentry>","path":"man/logind.conf.xml","position":8,"original_position":8,"commit_id":"003683d6bdf3c2512229bd868eeb686e6b9295e3","original_commit_id":"003683d6bdf3c2512229bd868eeb686e6b9295e3","user":{"login":"poettering","id":2130732,"avatar_url":"https://avatars.githubusercontent.com/u/2130732?v=3","gravatar_id":"","url":"https://api.github.com/users/poettering","html_url":"https://github.com/poettering","followers_url":"https://api.github.com/users/poettering/followers","following_url":"https://api.github.com/users/poettering/following{/other_user}","gists_url":"https://api.github.com/users/poettering/gists{/gist_id}","starred_url":"https://api.github.com/users/poettering/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/poettering/subscriptions","organizations_url":"https://api.github.com/users/poettering/orgs","repos_url":"https://api.github.com/users/poettering/repos","events_url":"https://api.github.com/users/poettering/events{/privacy}","received_events_url":"https://api.github.com/users/poettering/received_events","type":"User","site_admin":false},"body":"Yeah, so I thought about this, we set UserTasksMax to 12K after all in the same file, and RLIMIT_NOFILE defaults to 4K these days, which makes 96M, which is of course a tiny bit more than 8K... ;-)\r\n\r\nBut then, again, inhibitors are not too important currently, after all they little more than just a friendly request, and aren't honoured by privileged users anyway, so I figured this was actually OK for now.\r\n\r\nThe alternative would be to introduce UserInhibitorsMax= or so and enforce a per-user limit, but that would be quite some book-keeping in logind, and I was too lazy to add that, for this non-dangerous feature.\r\n\r\nOr to say this differently: I think it is really important that we put limits on all our resources we open up to unprivileged code, simply so that whatever we allocate has a global limit. Whether users can fuck each other with that, I think is much less important (at least in this case). I think it's more important to enforce limits on what we allocate than it is to introduce a new DoS condition here.\r\n\r\nOr to say it even differently: I think we need a global limit anyway. If one day somebody cares enough to add UserInhibitorsMax=, then that'd be great, but I think that can happen in a different PR.","created_at":"2016-05-05T20:48:28Z","updated_at":"2016-05-05T20:48:28Z","html_url":"https://github.com/systemd/systemd/pull/3190#discussion_r62252568","pull_request_url":"https://api.github.com/repos/systemd/systemd/pulls/3190","_links":{"self":{"href":"https://api.github.com/repos/systemd/systemd/pulls/comments/62252568"},"html":{"href":"https://github.com/systemd/systemd/pull/3190#discussion_r62252568"},"pull_request":{"href":"https://api.github.com/repos/systemd/systemd/pulls/3190"}}},"pull_request":{"url":"https://api.github.com/repos/systemd/systemd/pulls/3190","id":68903504,"html_url":"https://github.com/systemd/systemd/pull/3190","diff_url":"https://github.com/systemd/systemd/pull/3190.diff","patch_url":"https://github.com/systemd/systemd/pull/3190.patch","issue_url":"https://api.github.com/repos/systemd/systemd/issues/3190","number":3190,"state":"open","locked":false,"title":"a number of logind fixes","user":{"login":"poettering","id":2130732,"avatar_url":"https://avatars.githubusercontent.com/u/2130732?v=3","gravatar_id":"","url":"https://api.github.com/users/poettering","html_url":"https://github.com/poettering","followers_url":"https://api.github.com/users/poettering/followers","following_url":"https://api.github.com/users/poettering/following{/other_user}","gists_url":"https://api.github.com/users/poettering/gists{/gist_id}","starred_url":"https://api.github.com/users/poettering/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/poettering/subscriptions","organizations_url":"https://api.github.com/users/poettering/orgs","repos_url":"https://api.github.com/users/poettering/repos","events_url":"https://api.github.com/users/poettering/events{/privacy}","received_events_url":"https://api.github.com/users/poettering/received_events","type":"User","site_admin":false},"body":"fixes in context of #1961.","created_at":"2016-05-04T17:50:15Z","updated_at":"2016-05-05T20:48:28Z","closed_at":null,"merged_at":null,"merge_commit_sha":"14191becc6bf1ce8288b785bceb85753bfd9eac6","assignee":null,"milestone":null,"commits_url":"https://api.github.com/repos/systemd/systemd/pulls/3190/commits","review_comments_url":"https://api.github.com/repos/systemd/systemd/pulls/3190/comments","review_comment_url":"https://api.github.com/repos/systemd/systemd/pulls/comments{/number}","comments_url":"https://api.github.com/repos/systemd/systemd/issues/3190/comments","statuses_url":"https://api.github.com/repos/systemd/systemd/statuses/003683d6bdf3c2512229bd868eeb686e6b9295e3","head":{"label":"poettering:logind-fixes","ref":"logind-fixes","sha":"003683d6bdf3c2512229bd868eeb686e6b9295e3","user":{"login":"poettering","id":2130732,"avatar_url":"https://avatars.githubusercontent.com/u/2130732?v=3","gravatar_id":"","url":"https://api.github.com/users/poettering","html_url":"https://github.com/poettering","followers_url":"https://api.github.com/users/poettering/followers","following_url":"https://api.github.com/users/poettering/following{/other_user}","gists_url":"https://api.github.com/users/poettering/gists{/gist_id}","starred_url":"https://api.github.com/users/poettering/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/poettering/subscriptions","organizations_url":"https://api.github.com/users/poettering/orgs","repos_url":"https://api.github.com/users/poettering/repos","events_url":"https://api.github.com/users/poettering/events{/privacy}","received_events_url":"https://api.github.com/users/poettering/received_events","type":"User","site_admin":false},"repo":{"id":37097921,"name":"systemd","full_name":"poettering/systemd","owner":{"login":"poettering","id":2130732,"avatar_url":"https://avatars.githubusercontent.com/u/2130732?v=3","gravatar_id":"","url":"https://api.github.com/users/poettering","html_url":"https://github.com/poettering","followers_url":"https://api.github.com/users/poettering/followers","following_url":"https://api.github.com/users/poettering/following{/other_user}","gists_url":"https://api.github.com/users/poettering/gists{/gist_id}","starred_url":"https://api.github.com/users/poettering/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/poettering/subscriptions","organizations_url":"https://api.github.com/users/poettering/orgs","repos_url":"https://api.github.com/users/poettering/repos","events_url":"https://api.github.com/users/poettering/events{/privacy}","received_events_url":"https://api.github.com/users/poettering/received_events","type":"User","site_admin":false},"private":false,"html_url":"https://github.com/poettering/systemd","description":"systemd upstream","fork":true,"url":"https://api.github.com/repos/poettering/systemd","forks_url":"https://api.github.com/repos/poettering/systemd/forks","keys_url":"https://api.github.com/repos/poettering/systemd/keys{/key_id}","collaborators_url":"https://api.github.com/repos/poettering/systemd/collaborators{/collaborator}","teams_url":"https://api.github.com/repos/poettering/systemd/teams","hooks_url":"https://api.github.com/repos/poettering/systemd/hooks","issue_events_url":"https://api.github.com/repos/poettering/systemd/issues/events{/number}","events_url":"https://api.github.com/repos/poettering/systemd/events","assignees_url":"https://api.github.com/repos/poettering/systemd/assignees{/user}","branches_url":"https://api.github.com/repos/poettering/systemd/branches{/branch}","tags_url":"https://api.github.com/repos/poettering/systemd/tags","blobs_url":"https://api.github.com/repos/poettering/systemd/git/blobs{/sha}","git_tags_url":"https://api.github.com/repos/poettering/systemd/git/tags{/sha}","git_refs_url":"https://api.github.com/repos/poettering/systemd/git/refs{/sha}","trees_url":"https://api.github.com/repos/poettering/systemd/git/trees{/sha}","statuses_url":"https://api.github.com/repos/poettering/systemd/statuses/{sha}","languages_url":"https://api.github.com/repos/poettering/systemd/languages","stargazers_url":"https://api.github.com/repos/poettering/systemd/stargazers","contributors_url":"https://api.github.com/repos/poettering/systemd/contributors","subscribers_url":"https://api.github.com/repos/poettering/systemd/subscribers","subscription_url":"https://api.github.com/repos/poettering/systemd/subscription","commits_url":"https://api.github.com/repos/poettering/systemd/commits{/sha}","git_commits_url":"https://api.github.com/repos/poettering/systemd/git/commits{/sha}","comments_url":"https://api.github.com/repos/poettering/systemd/comments{/number}","issue_comment_url":"https://api.github.com/repos/poettering/systemd/issues/comments{/number}","contents_url":"https://api.github.com/repos/poettering/systemd/contents/{+path}","compare_url":"https://api.github.com/repos/poettering/systemd/compare/{base}...{head}","merges_url":"https://api.github.com/repos/poettering/systemd/merges","archive_url":"https://api.github.com/repos/poettering/systemd/{archive_format}{/ref}","downloads_url":"https://api.github.com/repos/poettering/systemd/downloads","issues_url":"https://api.github.com/repos/poettering/systemd/issues{/number}","pulls_url":"https://api.github.com/repos/poettering/systemd/pulls{/number}","milestones_url":"https://api.github.com/repos/poettering/systemd/milestones{/number}","notifications_url":"https://api.github.com/repos/poettering/systemd/notifications{?since,all,participating}","labels_url":"https://api.github.com/repos/poettering/systemd/labels{/name}","releases_url":"https://api.github.com/repos/poettering/systemd/releases{/id}","deployments_url":"https://api.github.com/repos/poettering/systemd/deployments","created_at":"2015-06-08T23:07:59Z","updated_at":"2016-04-05T11:24:20Z","pushed_at":"2016-05-05T20:35:44Z","git_url":"git://github.com/poettering/systemd.git","ssh_url":"git@github.com:poettering/systemd.git","clone_url":"https://github.com/poettering/systemd.git","svn_url":"https://github.com/poettering/systemd","homepage":"http://www.freedesktop.org/wiki/Software/systemd/","size":59024,"stargazers_count":2,"watchers_count":2,"language":"C","has_issues":false,"has_downloads":true,"has_wiki":false,"has_pages":false,"forks_count":1,"mirror_url":null,"open_issues_count":0,"forks":1,"open_issues":0,"watchers":2,"default_branch":"master"}},"base":{"label":"systemd:master","ref":"master","sha":"5119d304ffe4d1bcac27626c842413f5f2defe0d","user":{"login":"systemd","id":1918868,"avatar_url":"https://avatars.githubusercontent.com/u/1918868?v=3","gravatar_id":"","url":"https://api.github.com/users/systemd","html_url":"https://github.com/systemd","followers_url":"https://api.github.com/users/systemd/followers","following_url":"https://api.github.com/users/systemd/following{/other_user}","gists_url":"https://api.github.com/users/systemd/gists{/gist_id}","starred_url":"https://api.github.com/users/systemd/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/systemd/subscriptions","organizations_url":"https://api.github.com/users/systemd/orgs","repos_url":"https://api.github.com/users/systemd/repos","events_url":"https://api.github.com/users/systemd/events{/privacy}","received_events_url":"https://api.github.com/users/systemd/received_events","type":"Organization","site_admin":false},"repo":{"id":32873313,"name":"systemd","full_name":"systemd/systemd","owner":{"login":"systemd","id":1918868,"avatar_url":"https://avatars.githubusercontent.com/u/1918868?v=3","gravatar_id":"","url":"https://api.github.com/users/systemd","html_url":"https://github.com/systemd","followers_url":"https://api.github.com/users/systemd/followers","following_url":"https://api.github.com/users/systemd/following{/other_user}","gists_url":"https://api.github.com/users/systemd/gists{/gist_id}","starred_url":"https://api.github.com/users/systemd/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/systemd/subscriptions","organizations_url":"https://api.github.com/users/systemd/orgs","repos_url":"https://api.github.com/users/systemd/repos","events_url":"https://api.github.com/users/systemd/events{/privacy}","received_events_url":"https://api.github.com/users/systemd/received_events","type":"Organization","site_admin":false},"private":false,"html_url":"https://github.com/systemd/systemd","description":"systemd upstream","fork":false,"url":"https://api.github.com/repos/systemd/systemd","forks_url":"https://api.github.com/repos/systemd/systemd/forks","keys_url":"https://api.github.com/repos/systemd/systemd/keys{/key_id}","collaborators_url":"https://api.github.com/repos/systemd/systemd/collaborators{/collaborator}","teams_url":"https://api.github.com/repos/systemd/systemd/teams","hooks_url":"https://api.github.com/repos/systemd/systemd/hooks","issue_events_url":"https://api.github.com/repos/systemd/systemd/issues/events{/number}","events_url":"https://api.github.com/repos/systemd/systemd/events","assignees_url":"https://api.github.com/repos/systemd/systemd/assignees{/user}","branches_url":"https://api.github.com/repos/systemd/systemd/branches{/branch}","tags_url":"https://api.github.com/repos/systemd/systemd/tags","blobs_url":"https://api.github.com/repos/systemd/systemd/git/blobs{/sha}","git_tags_url":"https://api.github.com/repos/systemd/systemd/git/tags{/sha}","git_refs_url":"https://api.github.com/repos/systemd/systemd/git/refs{/sha}","trees_url":"https://api.github.com/repos/systemd/systemd/git/trees{/sha}","statuses_url":"https://api.github.com/repos/systemd/systemd/statuses/{sha}","languages_url":"https://api.github.com/repos/systemd/systemd/languages","stargazers_url":"https://api.github.com/repos/systemd/systemd/stargazers","contributors_url":"https://api.github.com/repos/systemd/systemd/contributors","subscribers_url":"https://api.github.com/repos/systemd/systemd/subscribers","subscription_url":"https://api.github.com/repos/systemd/systemd/subscription","commits_url":"https://api.github.com/repos/systemd/systemd/commits{/sha}","git_commits_url":"https://api.github.com/repos/systemd/systemd/git/commits{/sha}","comments_url":"https://api.github.com/repos/systemd/systemd/comments{/number}","issue_comment_url":"https://api.github.com/repos/systemd/systemd/issues/comments{/number}","contents_url":"https://api.github.com/repos/systemd/systemd/contents/{+path}","compare_url":"https://api.github.com/repos/systemd/systemd/compare/{base}...{head}","merges_url":"https://api.github.com/repos/systemd/systemd/merges","archive_url":"https://api.github.com/repos/systemd/systemd/{archive_format}{/ref}","downloads_url":"https://api.github.com/repos/systemd/systemd/downloads","issues_url":"https://api.github.com/repos/systemd/systemd/issues{/number}","pulls_url":"https://api.github.com/repos/systemd/systemd/pulls{/number}","milestones_url":"https://api.github.com/repos/systemd/systemd/milestones{/number}","notifications_url":"https://api.github.com/repos/systemd/systemd/notifications{?since,all,participating}","labels_url":"https://api.github.com/repos/systemd/systemd/labels{/name}","releases_url":"https://api.github.com/repos/systemd/systemd/releases{/id}","deployments_url":"https://api.github.com/repos/systemd/systemd/deployments","created_at":"2015-03-25T15:27:27Z","updated_at":"2016-05-05T11:52:55Z","pushed_at":"2016-05-05T20:43:57Z","git_url":"git://github.com/systemd/systemd.git","ssh_url":"git@github.com:systemd/systemd.git","clone_url":"https://github.com/systemd/systemd.git","svn_url":"https://github.com/systemd/systemd","homepage":"http://www.freedesktop.org/wiki/Software/systemd/","size":72080,"stargazers_count":1057,"watchers_count":1057,"language":"C","has_issues":true,"has_downloads":true,"has_wiki":false,"has_pages":false,"forks_count":420,"mirror_url":null,"open_issues_count":319,"forks":420,"open_issues":319,"watchers":1057,"default_branch":"master"}},"_links":{"self":{"href":"https://api.github.com/repos/systemd/systemd/pulls/3190"},"html":{"href":"https://github.com/systemd/systemd/pull/3190"},"issue":{"href":"https://api.github.com/repos/systemd/systemd/issues/3190"},"comments":{"href":"https://api.github.com/repos/systemd/systemd/issues/3190/comments"},"review_comments":{"href":"https://api.github.com/repos/systemd/systemd/pulls/3190/comments"},"review_comment":{"href":"https://api.github.com/repos/systemd/systemd/pulls/comments{/number}"},"commits":{"href":"https://api.github.com/repos/systemd/systemd/pulls/3190/commits"},"statuses":{"href":"https://api.github.com/repos/systemd/systemd/statuses/003683d6bdf3c2512229bd868eeb686e6b9295e3"}}}}