Use-after-free vulnerability in mm/percpu.c in the Linux kernel through 4.6 allows local users to cause a denial of service (BUG) or possibly have unspecified other impact via crafted use of the mmap and bpf system calls.
https://source.android.com/security/bulletin/2016-12-01.html
https://bugzilla.redhat.com/show_bug.cgi?id=1335889
http://www.ubuntu.com/usn/USN-3057-1
http://www.ubuntu.com/usn/USN-3056-1
http://www.ubuntu.com/usn/USN-3055-1
http://www.ubuntu.com/usn/USN-3054-1
http://www.ubuntu.com/usn/USN-3053-1
http://www.securityfocus.com/bid/90625