CVE-2025-38247

MEDIUM

5.5

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.

CVE Details

CVSS v3.1 Score5.5

SeverityMEDIUM

CVSS VectorCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Attack VectorLOCAL

ComplexityLOW

Privileges RequiredLOW

User InteractionNONE

Published7/9/2025

Last Modified11/19/2025

Sourcenvd

Honeypot Sightings0

Affected Products

linux:linux_kernel

References

https://git.kernel.org/stable/c/0748e553df0225754c316a92af3a77fdc057b358(416baaa9-dc9f-4396-8d5f-8c081fb06d67)

https://git.kernel.org/stable/c/142db4e76110dd80239f4e79810f85ea1735ad60(416baaa9-dc9f-4396-8d5f-8c081fb06d67)

IOC Correlations

No correlations recorded

This product uses data from the NVD API but is not endorsed or certified by the NVD.