RHSA-2026:54246: Moderate: kernel security update
Moderate: kernel security update
Other sources
The kernel packages contain the Linux kernel, the core of any Linux operating system.Security Fix(es): kernel: udf: fix partition descriptor append bookkeeping (CVE-2026-45991) kernel: ice: fix double-free of txbuf skb (CVE-2026-53009) 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
Remediation
Recommended actions to resolve this vulnerability, in priority order.
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redhat/kernelto a version that resolves this vulnerability.Fixed in 4.18.0-553.155.1.el8_10 - Upgrade
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redhat/bpftoolto a version that resolves this vulnerability.Fixed in 4.18.0-553.155.1.el8_10 - Upgrade
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redhat/bpftool-debuginfoto a version that resolves this vulnerability.Fixed in 4.18.0-553.155.1.el8_10 - Upgrade
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redhat/kernel-abi-stableliststo a version that resolves this vulnerability.Fixed in 4.18.0-553.155.1.el8_10 - Upgrade
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redhat/kernel-coreto a version that resolves this vulnerability.Fixed in 4.18.0-553.155.1.el8_10 - Upgrade
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redhat/kernel-cross-headersto a version that resolves this vulnerability.Fixed in 4.18.0-553.155.1.el8_10 - Upgrade
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redhat/kernel-debugto a version that resolves this vulnerability.Fixed in 4.18.0-553.155.1.el8_10 - Upgrade
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redhat/kernel-debug-coreto a version that resolves this vulnerability.Fixed in 4.18.0-553.155.1.el8_10 - Upgrade
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redhat/kernel-debug-debuginfoto a version that resolves this vulnerability.Fixed in 4.18.0-553.155.1.el8_10 - Upgrade
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redhat/kernel-debug-develto a version that resolves this vulnerability.Fixed in 4.18.0-553.155.1.el8_10 - Upgrade
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redhat/kernel-debug-modulesto a version that resolves this vulnerability.Fixed in 4.18.0-553.155.1.el8_10 - Upgrade
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redhat/kernel-debug-modules-extrato a version that resolves this vulnerability.Fixed in 4.18.0-553.155.1.el8_10 - Upgrade
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redhat/kernel-debuginfoto a version that resolves this vulnerability.Fixed in 4.18.0-553.155.1.el8_10 - Upgrade
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redhat/kernel-develto a version that resolves this vulnerability.Fixed in 4.18.0-553.155.1.el8_10 - Upgrade
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redhat/kernel-docto a version that resolves this vulnerability.Fixed in 4.18.0-553.155.1.el8_10 - Upgrade
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redhat/kernel-headersto a version that resolves this vulnerability.Fixed in 4.18.0-553.155.1.el8_10 - Upgrade
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redhat/kernel-modulesto a version that resolves this vulnerability.Fixed in 4.18.0-553.155.1.el8_10 - Upgrade
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redhat/kernel-modules-extrato a version that resolves this vulnerability.Fixed in 4.18.0-553.155.1.el8_10 - Upgrade
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redhat/kernel-toolsto a version that resolves this vulnerability.Fixed in 4.18.0-553.155.1.el8_10 - Upgrade
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redhat/kernel-tools-debuginfoto a version that resolves this vulnerability.Fixed in 4.18.0-553.155.1.el8_10 - Upgrade
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redhat/kernel-tools-libsto a version that resolves this vulnerability.Fixed in 4.18.0-553.155.1.el8_10 - Upgrade
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redhat/perfto a version that resolves this vulnerability.Fixed in 4.18.0-553.155.1.el8_10 - Upgrade
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redhat/perf-debuginfoto a version that resolves this vulnerability.Fixed in 4.18.0-553.155.1.el8_10 - Upgrade
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redhat/python3-perfto a version that resolves this vulnerability.Fixed in 4.18.0-553.155.1.el8_10 - Upgrade
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redhat/python3-perf-debuginfoto a version that resolves this vulnerability.Fixed in 4.18.0-553.155.1.el8_10 - Upgrade
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redhat/kernel-debuginfo-common-s390xto a version that resolves this vulnerability.Fixed in 4.18.0-553.155.1.el8_10 - Upgrade
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redhat/kernel-zfcpdumpto a version that resolves this vulnerability.Fixed in 4.18.0-553.155.1.el8_10 - Upgrade
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redhat/kernel-zfcpdump-coreto a version that resolves this vulnerability.Fixed in 4.18.0-553.155.1.el8_10 - Upgrade
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redhat/kernel-zfcpdump-debuginfoto a version that resolves this vulnerability.Fixed in 4.18.0-553.155.1.el8_10 - Upgrade
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redhat/kernel-zfcpdump-develto a version that resolves this vulnerability.Fixed in 4.18.0-553.155.1.el8_10 - Upgrade
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redhat/kernel-zfcpdump-modulesto a version that resolves this vulnerability.Fixed in 4.18.0-553.155.1.el8_10 - Upgrade
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redhat/kernel-zfcpdump-modules-extrato a version that resolves this vulnerability.Fixed in 4.18.0-553.155.1.el8_10 - Upgrade
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redhat/kernel-debuginfo-common-ppc64leto a version that resolves this vulnerability.Fixed in 4.18.0-553.155.1.el8_10 - Upgrade
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redhat/bpftoolto a version that resolves this vulnerability.Fixed in 4.18.0-553.155.1.el8_10.aa - Upgrade
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redhat/bpftool-debuginfoto a version that resolves this vulnerability.Fixed in 4.18.0-553.155.1.el8_10.aa - Upgrade
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redhat/kernelto a version that resolves this vulnerability.Fixed in 4.18.0-553.155.1.el8_10.aa - Upgrade
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redhat/kernel-coreto a version that resolves this vulnerability.Fixed in 4.18.0-553.155.1.el8_10.aa - Upgrade
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redhat/kernel-cross-headersto a version that resolves this vulnerability.Fixed in 4.18.0-553.155.1.el8_10.aa - Upgrade
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redhat/kernel-debugto a version that resolves this vulnerability.Fixed in 4.18.0-553.155.1.el8_10.aa - Upgrade
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redhat/kernel-debug-coreto a version that resolves this vulnerability.Fixed in 4.18.0-553.155.1.el8_10.aa - Upgrade
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redhat/kernel-debug-debuginfoto a version that resolves this vulnerability.Fixed in 4.18.0-553.155.1.el8_10.aa - Upgrade
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redhat/kernel-debug-develto a version that resolves this vulnerability.Fixed in 4.18.0-553.155.1.el8_10.aa - Upgrade
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redhat/kernel-debug-modulesto a version that resolves this vulnerability.Fixed in 4.18.0-553.155.1.el8_10.aa - Upgrade
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redhat/kernel-debug-modules-extrato a version that resolves this vulnerability.Fixed in 4.18.0-553.155.1.el8_10.aa - Upgrade
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redhat/kernel-debuginfoto a version that resolves this vulnerability.Fixed in 4.18.0-553.155.1.el8_10.aa - Upgrade
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redhat/kernel-debuginfo-common-aarch64to a version that resolves this vulnerability.Fixed in 4.18.0-553.155.1.el8_10.aa - Upgrade
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redhat/kernel-develto a version that resolves this vulnerability.Fixed in 4.18.0-553.155.1.el8_10.aa - Upgrade
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redhat/kernel-headersto a version that resolves this vulnerability.Fixed in 4.18.0-553.155.1.el8_10.aa - Upgrade
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redhat/kernel-modulesto a version that resolves this vulnerability.Fixed in 4.18.0-553.155.1.el8_10.aa - Upgrade
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redhat/kernel-modules-extrato a version that resolves this vulnerability.Fixed in 4.18.0-553.155.1.el8_10.aa - Upgrade
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redhat/kernel-toolsto a version that resolves this vulnerability.Fixed in 4.18.0-553.155.1.el8_10.aa - Upgrade
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redhat/kernel-tools-debuginfoto a version that resolves this vulnerability.Fixed in 4.18.0-553.155.1.el8_10.aa - Upgrade
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redhat/kernel-tools-libsto a version that resolves this vulnerability.Fixed in 4.18.0-553.155.1.el8_10.aa - Upgrade
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redhat/perfto a version that resolves this vulnerability.Fixed in 4.18.0-553.155.1.el8_10.aa - Upgrade
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redhat/perf-debuginfoto a version that resolves this vulnerability.Fixed in 4.18.0-553.155.1.el8_10.aa - Upgrade
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redhat/python3-perfto a version that resolves this vulnerability.Fixed in 4.18.0-553.155.1.el8_10.aa - Upgrade
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redhat/python3-perf-debuginfoto a version that resolves this vulnerability.Fixed in 4.18.0-553.155.1.el8_10.aa - Upgrade
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redhat/kernel-tools-libs-develto a version that resolves this vulnerability.Fixed in 4.18.0-553.155.1.el8_10 - Upgrade
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redhat/kernel-tools-libs-develto a version that resolves this vulnerability.Fixed in 4.18.0-553.155.1.el8_10.aa - Upgrade
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kernel (ice)to a version that resolves this vulnerability.Patch CVE-2026-53009 - Upgrade
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kernel (udf)to a version that resolves this vulnerability.Patch CVE-2026-45991 - Operational
Reboot the system after installing the kernel security updates so the changes take effect.
Event History
Frequently Asked Questions
What is the severity of RHSA-2026:54246?
The severity of RHSA-2026:54246 is classified as medium.
How do I fix RHSA-2026:54246?
To fix RHSA-2026:54246, apply the latest kernel security update provided by Red Hat.
What software is affected by RHSA-2026:54246?
RHSA-2026:54246 affects various Red Hat Enterprise Linux versions and CodeReady Linux Builders for different architectures.
What is the risk level of RHSA-2026:54246?
The risk level associated with RHSA-2026:54246 is rated as 19.
When was RHSA-2026:54246 published?
RHSA-2026:54246 was published on August 12, 2026.