Race condition in the IPC object implementation in the Linux kernel through 4.2.3 allows local users to gain privileges by triggering an ipc_addid call that leads to uid and gid comparisons against uninitialized data, related to msg.c, shm.c, and util.c.
git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=b9a532277938798b53178d5a66af6e2915cb27cf
lists.opensuse.org/opensuse-security-announce/2015-10/msg00009.html
lists.opensuse.org/opensuse-security-announce/2015-11/msg00026.html
lists.opensuse.org/opensuse-security-announce/2015-11/msg00027.html
lists.opensuse.org/opensuse-security-announce/2015-11/msg00028.html
lists.opensuse.org/opensuse-security-announce/2015-11/msg00029.html
lists.opensuse.org/opensuse-security-announce/2015-11/msg00030.html
lists.opensuse.org/opensuse-security-announce/2015-11/msg00031.html
lists.opensuse.org/opensuse-security-announce/2015-11/msg00032.html
rhn.redhat.com/errata/RHSA-2015-2636.html
www.debian.org/security/2015/dsa-3372
www.openwall.com/lists/oss-security/2015/10/01/8
www.oracle.com/technetwork/topics/security/linuxbulletinjan2016-2867209.html
www.oracle.com/technetwork/topics/security/linuxbulletinoct2015-2719645.html
www.securityfocus.com/bid/76977
www.securitytracker.com/id/1034094
www.securitytracker.com/id/1034592
www.ubuntu.com/usn/USN-2761-1
www.ubuntu.com/usn/USN-2762-1
www.ubuntu.com/usn/USN-2763-1
www.ubuntu.com/usn/USN-2764-1
www.ubuntu.com/usn/USN-2765-1
www.ubuntu.com/usn/USN-2792-1
bugzilla.redhat.com/show_bug.cgi?id=1268270
github.com/torvalds/linux/commit/b9a532277938798b53178d5a66af6e2915cb27cf
kc.mcafee.com/corporate/index?page=content&id=SB10146