{"id":"CVE-2016-6213","details":"fs/namespace.c in the Linux kernel before 4.9 does not restrict how many mounts may exist in a mount namespace, which allows local users to cause a denial of service (memory consumption and deadlock) via MS_BIND mount system calls, as demonstrated by a loop that triggers exponential growth in the number of mounts.","modified":"2026-04-16T06:23:46.867037278Z","published":"2016-12-28T07:59:00.180Z","references":[{"type":"WEB","url":"http://www.securityfocus.com/bid/91754"},{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2017:1842"},{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2017:2077"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=1356471"},{"type":"FIX","url":"https://github.com/torvalds/linux/commit/d29216842a85c7970c536108e093963f02714498"},{"type":"FIX","url":"http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=d29216842a85c7970c536108e093963f02714498"},{"type":"ARTICLE","url":"http://www.openwall.com/lists/oss-security/2016/07/13/8"}],"affected":[{"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2016-6213.json","unresolved_ranges":[{"events":[{"introduced":"0"},{"last_affected":"4.8.15"}]}]}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H"}]}