CVE-2014-3940 Information

Description

The Linux kernel through 3.14.5 does not properly consider the presence of hugetlb entries which allows local users to cause a denial of service (memory corruption or system crash) by accessing certain memory locations as demonstrated by triggering a race condition via numa_maps read operations during hugepage migration related to fs/proc/task_mmu.c and mm/mempolicy.c.

Reference

http://rhn.redhat.com/errata/RHSA-2015-0290.html http://rhn.redhat.com/errata/RHSA-2015-1272.html http://secunia.com/advisories/59011 http://secunia.com/advisories/61310 http://www.openwall.com/lists/oss-security/2014/06/02/5 http://www.securityfocus.com/bid/67786 https://bugzilla.redhat.com/show_bug.cgi?id=1104097 https://lkml.org/lkml/2014/3/18/784 https://support.f5.com/kb/en-us/solutions/public/15000/600/sol15685.html