net/sctp/sm_sideeffect.c in the Linux kernel before 4.3 does not properly manage the relationship between a lock and a socket, which allows local users to cause a denial of service (deadlock) via a crafted sctp_accept call.
git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=635682a14427d241bab7bbdeebb48a7d7b91638e
lists.fedoraproject.org/pipermail/package-announce/2016-February/176484.html
lists.opensuse.org/opensuse-security-announce/2016-03/msg00094.html
lists.opensuse.org/opensuse-security-announce/2016-04/msg00015.html
lists.opensuse.org/opensuse-security-announce/2016-04/msg00045.html
lists.opensuse.org/opensuse-security-announce/2016-08/msg00038.html
rhn.redhat.com/errata/RHSA-2016-0715.html
www.debian.org/security/2016/dsa-3448
www.debian.org/security/2016/dsa-3503
www.openwall.com/lists/oss-security/2016/01/11/4
www.oracle.com/technetwork/topics/security/linuxbulletinapr2016-2952096.html
www.oracle.com/technetwork/topics/security/linuxbulletinjul2016-3090544.html
www.securityfocus.com/bid/80268
www.ubuntu.com/usn/USN-2930-1
www.ubuntu.com/usn/USN-2930-2
www.ubuntu.com/usn/USN-2930-3
www.ubuntu.com/usn/USN-2931-1
www.ubuntu.com/usn/USN-2932-1
www.ubuntu.com/usn/USN-2967-1
www.ubuntu.com/usn/USN-2967-2
access.redhat.com/errata/RHSA-2016:1277
access.redhat.com/errata/RHSA-2016:1301
access.redhat.com/errata/RHSA-2016:1341
bugzilla.redhat.com/show_bug.cgi?id=1297389
github.com/torvalds/linux/commit/635682a14427d241bab7bbdeebb48a7d7b91638e