RHSA-2025:18318: Moderate: kernel security update

Published Oct 20, 2025
·
Updated

Moderate: kernel security update

Affected Software

216 affected componentsFixes available
Red Hat Red Hat Enterprise Linux for IBM z Systems - 4 years of updates
Red Hat Red Hat Enterprise Linux for x86_64
Red Hat Red Hat Enterprise Linux for Power, little endian - 4 years of support
Red Hat Red Hat Enterprise Linux for IBM z Systems
Red Hat Red Hat Enterprise Linux for ARM 64
Red Hat Red Hat CodeReady Linux Builder for ARM 64
Red Hat Red Hat Enterprise Linux for ARM 64 - Extended Update Support
Red Hat Red Hat Enterprise Linux for IBM z Systems - Extended Update Support
Red Hat Red Hat Enterprise Linux for ARM 64 - 4 years of updates
Red Hat Red Hat Enterprise Linux for Power, little endian
Red Hat Red Hat Enterprise Linux for x86_64 - 4 years of updates
Red Hat Red Hat CodeReady Linux Builder for Power, little endian - Extended Update Support
Red Hat Red Hat CodeReady Linux Builder for IBM z Systems
Red Hat Red Hat CodeReady Linux Builder for IBM z Systems - Extended Update Support
Red Hat Red Hat Enterprise Linux for Power, little endian - Extended Update Support
Red Hat Red Hat Enterprise Linux for x86_64 - Extended Update Support
Red Hat Red Hat CodeReady Linux Builder for Power, little endian
Red Hat Red Hat CodeReady Linux Builder for x86_64 - Extended Update Support
Red Hat Red Hat CodeReady Linux Builder for ARM 64 - Extended Update Support
Red Hat Red Hat CodeReady Linux Builder for x86_64
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redhat/kernel-rt-debug-core<6.12.0-55.40.1.el10_0.aa
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redhat/kernel-rt-debug-devel<6.12.0-55.40.1.el10_0.aa
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redhat/kernel-rt-debug-modules<6.12.0-55.40.1.el10_0.aa
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redhat/kernel-rt-debug-modules-extra<6.12.0-55.40.1.el10_0.aa
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redhat/kernel-rt-debuginfo<6.12.0-55.40.1.el10_0.aa
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redhat/kernel-rt-devel<6.12.0-55.40.1.el10_0.aa
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redhat/kernel-rt-modules<6.12.0-55.40.1.el10_0.aa
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redhat/kernel-rt-modules-extra<6.12.0-55.40.1.el10_0.aa
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redhat/kernel-tools<6.12.0-55.40.1.el10_0.aa
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redhat/kernel-uki-virt<6.12.0-55.40.1.el10_0.aa
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redhat/python3-perf<6.12.0-55.40.1.el10_0.aa
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redhat/python3-perf-debuginfo<6.12.0-55.40.1.el10_0.aa
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redhat/rtla<6.12.0-55.40.1.el10_0.aa
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redhat/rv<6.12.0-55.40.1.el10_0.aa
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redhat/kernel-cross-headers<6.12.0-55.40.1.el10_0
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redhat/kernel-tools-libs-devel<6.12.0-55.40.1.el10_0
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redhat/libperf<6.12.0-55.40.1.el10_0
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redhat/kernel-cross-headers<6.12.0-55.40.1.el10_0
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redhat/kernel-tools-libs-devel<6.12.0-55.40.1.el10_0
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redhat/libperf<6.12.0-55.40.1.el10_0
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redhat/kernel-cross-headers<6.12.0-55.40.1.el10_0.aa
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redhat/kernel-tools-libs-devel<6.12.0-55.40.1.el10_0.aa
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redhat/libperf<6.12.0-55.40.1.el10_0.aa
6.12.0-55.40.1.el10_0.aa
redhat/kernel-cross-headers<6.12.0-55.40.1.el10_0
6.12.0-55.40.1.el10_0
redhat/libperf<6.12.0-55.40.1.el10_0
6.12.0-55.40.1.el10_0

Remediation

Event History

Oct 20, 2025
Advisory Published
via Red Hat·09:27 AM
Data Sourced
via Red Hat·09:27 AM
DescriptionSeverityAffected Software
May 26, 2026
Advisory Published
via Red Hat·11:20 PM
Data Sourced
via Red Hat·11:20 PM
Remedy

Frequently Asked Questions

1

What is the severity of RHSA-2025:18318?

The severity of RHSA-2025:18318 is classified as moderate.

2

How do I fix RHSA-2025:18318?

To fix RHSA-2025:18318, update the kernel package to version 6.12.0-55.40.1.el10_0 or higher.

3

What products are affected by RHSA-2025:18318?

RHSA-2025:18318 affects various versions of Red Hat Enterprise Linux including x86_64, ARM 64, Power little endian, and IBM z Systems.

4

What security vulnerabilities are addressed in RHSA-2025:18318?

RHSA-2025:18318 addresses vulnerabilities including CVE-2025-38351 related to KVM and other security fixes for the kernel.

5

When was RHSA-2025:18318 released?

RHSA-2025:18318 was released on December 10, 2025.

Company

Resources

Contact

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