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: The race condition in MNTTREEBENEATH handling has been fixed by using domovemount. Normally, dolockmountpath, locks a mountpoint pointed to by path. At the time when unlockmount is called, that location is still locked by the sam...

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...