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.Referenceshttp://www.ubuntu.com/usn/USN-3054-1https://source.android.com/security/bulletin/2016-12-01.htmlhttp://www.ubuntu.com/usn/USN-3053-1http://www.ubuntu.com/usn/USN-3055-1http://www.ubuntu.com/usn/USN-3056-1http://www.openwall.com/lists/oss-security/2016/05/12/6http://rhn.redhat.com/errata/RHSA-2016-2584.htmlhttp://rhn.redhat.com/errata/RHSA-2016-2574.htmlhttps://lkml.org/lkml/2016/4/17/125https://bugzilla.redhat.com/show_bug.cgi?id=1335889http://www.ubuntu.com/usn/USN-3057-1http://www.securityfocus.com/bid/90625
