Advisory Published

RHSA-2025:3894: Moderate: kernel-rt security update

First published: Tue Apr 15 2025(Updated: )

Moderate: kernel-rt security update

Affected SoftwareAffected VersionHow to fix
Red Hat Enterprise Linux for Real Time for NFV - Telecommunications Update Service
Red Hat Enterprise Linux for Real Time
redhat/kernel-rt<4.18.0-553.50.1.rt7.391.el8_10
4.18.0-553.50.1.rt7.391.el8_10
redhat/kernel-rt<4.18.0-553.50.1.rt7.391.el8_10
4.18.0-553.50.1.rt7.391.el8_10
redhat/kernel-rt-core<4.18.0-553.50.1.rt7.391.el8_10
4.18.0-553.50.1.rt7.391.el8_10
redhat/kernel-rt-debug<4.18.0-553.50.1.rt7.391.el8_10
4.18.0-553.50.1.rt7.391.el8_10
redhat/kernel-rt-debug-core<4.18.0-553.50.1.rt7.391.el8_10
4.18.0-553.50.1.rt7.391.el8_10
redhat/kernel-rt-debug-debuginfo<4.18.0-553.50.1.rt7.391.el8_10
4.18.0-553.50.1.rt7.391.el8_10
redhat/kernel-rt-debug-devel<4.18.0-553.50.1.rt7.391.el8_10
4.18.0-553.50.1.rt7.391.el8_10
redhat/kernel-rt-debug-modules<4.18.0-553.50.1.rt7.391.el8_10
4.18.0-553.50.1.rt7.391.el8_10
redhat/kernel-rt-debug-modules-extra<4.18.0-553.50.1.rt7.391.el8_10
4.18.0-553.50.1.rt7.391.el8_10
redhat/kernel-rt-debuginfo<4.18.0-553.50.1.rt7.391.el8_10
4.18.0-553.50.1.rt7.391.el8_10
redhat/kernel-rt-devel<4.18.0-553.50.1.rt7.391.el8_10
4.18.0-553.50.1.rt7.391.el8_10
redhat/kernel-rt-modules<4.18.0-553.50.1.rt7.391.el8_10
4.18.0-553.50.1.rt7.391.el8_10
redhat/kernel-rt-modules-extra<4.18.0-553.50.1.rt7.391.el8_10
4.18.0-553.50.1.rt7.391.el8_10
redhat/kernel-rt-debug-kvm<4.18.0-553.50.1.rt7.391.el8_10
4.18.0-553.50.1.rt7.391.el8_10
redhat/kernel-rt-kvm<4.18.0-553.50.1.rt7.391.el8_10
4.18.0-553.50.1.rt7.391.el8_10

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Frequently Asked Questions

  • What is the severity of RHSA-2025:3894?

    The severity of RHSA-2025:3894 is classified as moderate.

  • How do I fix RHSA-2025:3894?

    To fix RHSA-2025:3894, update your kernel-rt packages to version 4.18.0-553.50.1.rt7.391.el8_10.

  • Which systems are affected by RHSA-2025:3894?

    RHSA-2025:3894 affects Red Hat Enterprise Linux for Real Time and Red Hat Enterprise Linux for Real Time for NFV.

  • What is the primary security fix in RHSA-2025:3894?

    The primary security fix in RHSA-2025:3894 addresses vulnerabilities related to the Xen hypercall page being unsafe against speculative attacks.

  • Are there specific packages mentioned in RHSA-2025:3894 that need to be updated?

    Yes, the specific packages that need to be updated include kernel-rt, kernel-rt-core, and several kernel-rt-debug packages.

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