kernel is vulnerable to denial of service. It was found that the Linux kernel’s keyring implementation would leak memory when adding a key to a keyring via the add_key() function. A local attacker could use this flaw to exhaust all available memory on the system.
git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=ca4da5dd1f99fe9c59f1709fb43e818b18ad20e0
rhn.redhat.com/errata/RHSA-2015-1778.html
rhn.redhat.com/errata/RHSA-2015-1787.html
www.debian.org/security/2015/dsa-3329
www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.1.4
www.openwall.com/lists/oss-security/2015/07/27/7
www.oracle.com/technetwork/topics/security/linuxbulletinoct2015-2719645.html
www.securityfocus.com/bid/76050
www.ubuntu.com/usn/USN-2687-1
www.ubuntu.com/usn/USN-2688-1
www.ubuntu.com/usn/USN-2689-1
www.ubuntu.com/usn/USN-2690-1
www.ubuntu.com/usn/USN-2691-1
access.redhat.com/security/updates/classification/#important
bugzilla.redhat.com/show_bug.cgi?id=1245345
bugzilla.redhat.com/show_bug.cgi?id=1245658
github.com/torvalds/linux/commit/ca4da5dd1f99fe9c59f1709fb43e818b18ad20e0
rhn.redhat.com/errata/RHSA-2015-1787.html
support.f5.com/csp/article/K05211147