View at Official ubuntu advisory, NVD, CVE.org · CVE detail
Freshness: upstream tracker timestamp is available; use API updated time as primary recency signal.
CVE-2016-0728 high priority: Ubuntu including 28 source packages (linux, linux-armadaxp, …), 187 status rows across 7 suites (precise, trusty, upstream, vivid, wily, xenial, yakkety): DNE 118, released 36, not-affected 26, ignored 7.
The join_session_keyring function in security/keys/process_keys.c in the Linux kernel before 4.4.1 mishandles object references in a certain error case, which allows local users to gain privileges or cause a denial of service (integer overflow and use-after-free) via crafted keyctl commands.