runc: container escape via 'masked path' abuse due to mount race conditions

A flaw was found in runc. This flaw exploits an issue with how masked paths are implementedin runc. When masking files, runc will bind-mount the container's /dev/null inode on top of the file. However, if an attacker can replace /dev/null with a symlink to some other procfs file, runc will instea...

RockyLinux 9 : runc (RLSA-2025:20957)

The remote RockyLinux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the RLSA-2025:20957 advisory. runc: container escape via 'masked path' abuse due to mount race conditions CVE-2025-31133 runc: container escape with malicious config due to...

RLSA-2025:20957 Important: runc security update

The runC tool is a lightweight, portable implementation of the Open Container Format OCF that provides container runtime. Security Fixes: runc: container escape via 'masked path' abuse due to mount race conditions CVE-2025-31133 runc: container escape with malicious config due to /dev/console mou...

ALSA-2025:20957 Important: runc security update

The runC tool is a lightweight, portable implementation of the Open Container Format OCF that provides container runtime. Security Fixes: runc: container escape via 'masked path' abuse due to mount race conditions CVE-2025-31133 runc: container escape with malicious config due to /dev/console mou...

Important: Red Hat Security Advisory: runc security update

An update for runc is now available for Red Hat Enterprise Linux 9. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for each vulnerability from the...

ALSA-2025:19927 Important: runc security update

The runC tool is a lightweight, portable implementation of the Open Container Format OCF that provides container runtime. Security Fixes: runc: container escape via 'masked path' abuse due to mount race conditions CVE-2025-31133 runc: container escape with malicious config due to /dev/console mou...

Astra Linux – Vulnerability in Linux 6.12

In the Linux kernel, the following vulnerability has been resolved: A fix was made to several race conditions related to the handling of MNTTREEBENEATH using domovemount. Normally, dolockmountpath, locks the mountpoint pointed to by path. At the time when unlockmount is called, that location is...

SUSE CVE-2025-37988

In the Linux kernel, the following vulnerability has been resolved: fix a couple of races in MNTTREEBENEATH handling by domovemount Normally dolockmountpath, is locking a mountpoint pinned by path and at the time when matching unlockmount unlocks that location it is still pinned by the same thing...

UBUNTU-CVE-2025-37988

In the Linux kernel, the following vulnerability has been resolved: fix a couple of races in MNTTREEBENEATH handling by domovemount Normally dolockmountpath, is locking a mountpoint pinned by path and at the time when matching unlockmount unlocks that location it is still pinned by the same thing...