The MIDI subsystem in Google Chrome before 47.0.2526.106 does not properly handle the sending of data, which allows remote attackers to execute arbitrary code or cause a denial of service (application crash) via unspecified vectors, related to midi_manager.cc, midi_manager_alsa.cc, and midi_manager_mac.cc, a different vulnerability than CVE-2015-8664.
https://security.gentoo.org/glsa/201603-09
https://codereview.chromium.org/1508563003
https://codereview.chromium.org/1500153002
https://code.google.com/p/chromium/issues/detail?id=569486
https://code.google.com/p/chromium/issues/detail?id=564501
http://www.securitytracker.com/id/1034491
http://www.securityfocus.com/bid/79348
http://www.debian.org/security/2016/dsa-3456
http://rhn.redhat.com/errata/RHSA-2015-2665.html
http://lists.opensuse.org/opensuse-security-announce/2015-12/msg00030.html
http://lists.opensuse.org/opensuse-security-announce/2015-12/msg00029.html
http://googlechromereleases.blogspot.com/2015/12/stable-channel-update_15.html