CVE-2019-15794

A flaw was found in the Linux kernel. In Overlayfs, vma->vm_file was replaced in the mmap handlers and, on errors, the original value is not restored. A local attacker with special user privilege (or root) can cause a kernel internal information leak. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.

Mitigation

Mitigation for this issue is either not available or the currently available options don't meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability.