Linux kernel is vulnerable to denial of service attacks. An attacker can cause a crash by triggering the use of GRO path for packets with tunnel stacking.
git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=fac8e0f579695a3ecbc4d3cac369139d7f819971
rhn.redhat.com/errata/RHSA-2016-2047.html
rhn.redhat.com/errata/RHSA-2016-2107.html
rhn.redhat.com/errata/RHSA-2016-2110.html
rhn.redhat.com/errata/RHSA-2017-0004.html
www.openwall.com/lists/oss-security/2016/10/13/11
www.securityfocus.com/bid/93562
access.redhat.com/errata/RHSA-2016:2107
access.redhat.com/errata/RHSA-2017:0372
access.redhat.com/security/cve/CVE-2016-8666
access.redhat.com/security/updates/classification/#important
access.redhat.com/security/vulnerabilities/2706661
bto.bluecoat.com/security-advisory/sa134
bugzilla.redhat.com/show_bug.cgi?id=1384991
bugzilla.suse.com/show_bug.cgi?id=1001486
github.com/torvalds/linux/commit/fac8e0f579695a3ecbc4d3cac369139d7f819971