VULNERABILITY INTELLIGENCE
CVE-2025-38247
CVSS score5.5 MEDIUM
EPSS probability0.14%
CISA KEVNot currently listed
Published2025-07-09
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Description
In the Linux kernel, the following vulnerability has been resolved: userns and mnt_idmap leak in open_tree_attr(2) Once want_mount_setattr() has returned a positive, it does require finish_mount_kattr() to release ->mnt_userns. Failing do_mount_setattr() does not change that. As the result, we can end up leaking userns and possibly mnt_idmap as well.
Weakness classification
- nvd@nist.gov: NVD-CWE-noinfo