Description
A race condition was found in the way the Linux kernel's memory subsystem
handled the copy-on-write (COW) breakage of private read-only memory mappings.
An unprivileged, local user could use this flaw to gain write access to
otherwise read-only memory mappings and thus increase their privileges on the
system. (CVE-2016-5195, Important)
* It was found that stacking a file system over procfs in the Linux kernel could
lead to a kernel stack overflow due to deep nesting, as demonstrated by mounting
ecryptfs over procfs and creating a recursion by mapping /proc/environ. An
unprivileged, local user could potentially use this flaw to escalate their
privileges on the system. (CVE-2016-1583, Important)