RHSA-2024:1303 - Security Advisory

Topic

An update for kernel-rt is now available for Red Hat Enterprise Linux 9.2 Extended Update Support.

'Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.

Description

The kernel-rt packages provide the Real Time Linux Kernel, which enables fine-tuning for systems with extremely high determinism requirements.

Security Fix(es):

• kernel: memcg does not limit the number of POSIX file locks allowing memory exhaustion (CVE-2022-0480)

Bug Fix(es):

• kernel-rt: kernel: memcg does not limit the number of POSIX file locks allowing memory exhaustion (JIRA:RHEL-8998)
• kernel-rt: update RT source tree to the latest RHEL-9.2.z7 Batch (JIRA:RHEL-26863)

Solution

For details on how to apply this update, which includes the changes described in this advisory, refer to:

https://access.redhat.com/articles/11258

The system must be rebooted for this update to take effect.

Affected Products

• Red Hat Enterprise Linux for Real Time for x86_64 - 4 years of updates 9.2 x86_64
• Red Hat Enterprise Linux for Real Time for NFV for x86_64 - 4 years of updates 9.2 x86_64

Fixes

• BZ - 2049700 - CVE-2022-0480 kernel: memcg does not limit the number of POSIX file locks allowing memory exhaustion

CVEs

• CVE-2022-0480

References

• https://access.redhat.com/security/updates/classification/#moderate