mm/memory.c in the Linux kernel before 4.1.4 mishandles anonymous pages, which allows local users to gain privileges or cause a denial of service (page tainting) via a crafted application that triggers writing to page zero.
https://source.android.com/security/bulletin/2017-01-01.html
https://security-tracker.debian.org/tracker/CVE-2015-3288
https://github.com/torvalds/linux/commit/6b7339f4c31ad69c8e9c0b2859276e22cf72176d
https://bugzilla.redhat.com/show_bug.cgi?id=1333830
http://www.securityfocus.com/bid/93591