RHSA-2025:15662: Important: kernel security update
Published Sep 11, 2025
·Updated
Important: kernel security update
Other sources
The kernel packages contain the Linux kernel, the core of any Linux operating system.Security Fix(es): kernel: posix-cpu-timers: fix race between handleposixcputimers() and posixcputimerdel() (CVE-2025-38352) For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.
— Red Hat
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 x86_64
Red Hat Red Hat CodeReady Linux Builder for ARM 64 - Extended Update Support
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redhat/kernel-rt-core<6.12.0-55.32.1.el10_0.aa
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redhat/kernel-rt-debug<6.12.0-55.32.1.el10_0.aa
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redhat/kernel-rt-debug-debuginfo<6.12.0-55.32.1.el10_0.aa
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redhat/kernel-rt-debug-devel<6.12.0-55.32.1.el10_0.aa
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redhat/kernel-rt-debug-modules<6.12.0-55.32.1.el10_0.aa
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redhat/kernel-rt-debug-modules-core<6.12.0-55.32.1.el10_0.aa
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redhat/kernel-rt-debug-modules-extra<6.12.0-55.32.1.el10_0.aa
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redhat/kernel-rt-debuginfo<6.12.0-55.32.1.el10_0.aa
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redhat/kernel-rt-devel<6.12.0-55.32.1.el10_0.aa
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redhat/kernel-rt-modules<6.12.0-55.32.1.el10_0.aa
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redhat/kernel-rt-modules-core<6.12.0-55.32.1.el10_0.aa
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redhat/kernel-tools<6.12.0-55.32.1.el10_0.aa
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redhat/kernel-uki-virt<6.12.0-55.32.1.el10_0.aa
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redhat/kernel-uki-virt-addons<6.12.0-55.32.1.el10_0.aa
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redhat/libperf-debuginfo<6.12.0-55.32.1.el10_0.aa
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redhat/python3-perf<6.12.0-55.32.1.el10_0.aa
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redhat/python3-perf-debuginfo<6.12.0-55.32.1.el10_0.aa
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redhat/rtla<6.12.0-55.32.1.el10_0.aa
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redhat/rv<6.12.0-55.32.1.el10_0.aa
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redhat/kernel-cross-headers<6.12.0-55.32.1.el10_0
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redhat/kernel-tools-libs-devel<6.12.0-55.32.1.el10_0
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redhat/libperf<6.12.0-55.32.1.el10_0
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redhat/kernel-cross-headers<6.12.0-55.32.1.el10_0
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redhat/kernel-tools-libs-devel<6.12.0-55.32.1.el10_0
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redhat/libperf<6.12.0-55.32.1.el10_0
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redhat/kernel-cross-headers<6.12.0-55.32.1.el10_0.aa
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redhat/kernel-tools-libs-devel<6.12.0-55.32.1.el10_0.aa
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redhat/libperf<6.12.0-55.32.1.el10_0.aa
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redhat/kernel-cross-headers<6.12.0-55.32.1.el10_0
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redhat/libperf<6.12.0-55.32.1.el10_0
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Remediation
Event History
Sep 11, 2025
Advisory Published
via Red Hat·02:52 AM
Data Sourced
via Red Hat·02:52 AM
DescriptionSeverityAffected Software
May 28, 2026
Advisory Published
via Red Hat·02:26 AM
Data Sourced
via Red Hat·02:26 AM
Remedy
Frequently Asked Questions
1
What is the severity of RHSA-2025:15662?
The severity of RHSA-2025:15662 is classified as Important.
2
How do I fix RHSA-2025:15662?
To fix RHSA-2025:15662, you need to upgrade the kernel packages to version 6.12.0-55.32.1.el10_0 or higher.
3
What products are affected by RHSA-2025:15662?
RHSA-2025:15662 affects various Red Hat Enterprise Linux products including x86_64, Power, and ARM 64 architectures.
4
What vulnerability does RHSA-2025:15662 address?
RHSA-2025:15662 addresses the CVE-2025-38352 vulnerability related to a race condition in the posix-cpu-timers.
5
When was RHSA-2025:15662 released?
RHSA-2025:15662 was released on May 30, 2025.