CVE-2025-38247

Name of the Vulnerable Software and Affected Versions: Linux kernel (affected versions not specified)

Description: A flaw exists in the Linux kernel related to userns and mnt idmap leaks within the open tree attr(2) function. Specifically, a failure in do mount setattr() does not release the mnt userns, potentially leading to information disclosure of userns and potentially mnt idmap.

Recommendations: At the moment, there is no information about a newer version that contains a fix for this vulnerability.