RHSA-2026:54343: Important: kernel security, bug fix, and enhancement update
Important: kernel security, bug fix, and enhancement update
Other sources
The kernel packages contain the Linux kernel, the core of any Linux operating system.Security Fix(es): kernel: accel/ivpu: Fix signed integer truncation in IPC receive (CVE-2026-53202) kernel: net/sched: actapi: use RCU with deferred freeing for action lifecycle (CVE-2026-53264) kernel: scsi: target: iscsi: Bound iscsiencodetextoutput() appends to rspbuf (CVE-2026-63887) kernel: perf/aux: Fix page UAF in maprange() (CVE-2026-64300) Bug Fix(es) and Enhancement(s): netfilter: CVE backports for RHEL 10.2.z (JIRA:RHEL-185311) tlbflush - Windows Driver Verifier catches FLTMGR/Ntfs crashes during KVM 42-VM soak test on AMD EPYC Turin [rhel-10.2.z] (JIRA:RHEL-214436) 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 6.12.0-211.47.1.el10_2 - Upgrade
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redhat/kernel-abi-stableliststo a version that resolves this vulnerability.Fixed in 6.12.0-211.47.1.el10_2 - Upgrade
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redhat/kernel-coreto a version that resolves this vulnerability.Fixed in 6.12.0-211.47.1.el10_2 - Upgrade
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redhat/kernel-debugto a version that resolves this vulnerability.Fixed in 6.12.0-211.47.1.el10_2 - Upgrade
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redhat/kernel-debug-coreto a version that resolves this vulnerability.Fixed in 6.12.0-211.47.1.el10_2 - Upgrade
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redhat/kernel-debug-debuginfoto a version that resolves this vulnerability.Fixed in 6.12.0-211.47.1.el10_2 - Upgrade
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redhat/kernel-debug-develto a version that resolves this vulnerability.Fixed in 6.12.0-211.47.1.el10_2 - Upgrade
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redhat/kernel-debug-devel-matchedto a version that resolves this vulnerability.Fixed in 6.12.0-211.47.1.el10_2 - Upgrade
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redhat/kernel-debug-modulesto a version that resolves this vulnerability.Fixed in 6.12.0-211.47.1.el10_2 - Upgrade
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redhat/kernel-debug-modules-coreto a version that resolves this vulnerability.Fixed in 6.12.0-211.47.1.el10_2 - Upgrade
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redhat/kernel-debug-modules-extrato a version that resolves this vulnerability.Fixed in 6.12.0-211.47.1.el10_2 - Upgrade
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redhat/kernel-debug-uki-virtto a version that resolves this vulnerability.Fixed in 6.12.0-211.47.1.el10_2 - Upgrade
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redhat/kernel-debuginfoto a version that resolves this vulnerability.Fixed in 6.12.0-211.47.1.el10_2 - Upgrade
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redhat/kernel-develto a version that resolves this vulnerability.Fixed in 6.12.0-211.47.1.el10_2 - Upgrade
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redhat/kernel-devel-matchedto a version that resolves this vulnerability.Fixed in 6.12.0-211.47.1.el10_2 - Upgrade
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redhat/kernel-docto a version that resolves this vulnerability.Fixed in 6.12.0-211.47.1.el10_2 - Upgrade
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redhat/kernel-headersto a version that resolves this vulnerability.Fixed in 6.12.0-211.47.1.el10_2 - Upgrade
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redhat/kernel-modulesto a version that resolves this vulnerability.Fixed in 6.12.0-211.47.1.el10_2 - Upgrade
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redhat/kernel-modules-coreto a version that resolves this vulnerability.Fixed in 6.12.0-211.47.1.el10_2 - Upgrade
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redhat/kernel-modules-extrato a version that resolves this vulnerability.Fixed in 6.12.0-211.47.1.el10_2 - Upgrade
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redhat/kernel-modules-extra-matchedto a version that resolves this vulnerability.Fixed in 6.12.0-211.47.1.el10_2 - Upgrade
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redhat/kernel-rtto a version that resolves this vulnerability.Fixed in 6.12.0-211.47.1.el10_2 - Upgrade
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redhat/kernel-rt-coreto a version that resolves this vulnerability.Fixed in 6.12.0-211.47.1.el10_2 - Upgrade
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redhat/kernel-rt-debugto a version that resolves this vulnerability.Fixed in 6.12.0-211.47.1.el10_2 - Upgrade
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redhat/kernel-rt-debug-coreto a version that resolves this vulnerability.Fixed in 6.12.0-211.47.1.el10_2 - Upgrade
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redhat/kernel-rt-debug-debuginfoto a version that resolves this vulnerability.Fixed in 6.12.0-211.47.1.el10_2 - Upgrade
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redhat/kernel-rt-debug-develto a version that resolves this vulnerability.Fixed in 6.12.0-211.47.1.el10_2 - Upgrade
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redhat/kernel-rt-debug-modulesto a version that resolves this vulnerability.Fixed in 6.12.0-211.47.1.el10_2 - Upgrade
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redhat/kernel-rt-debug-modules-coreto a version that resolves this vulnerability.Fixed in 6.12.0-211.47.1.el10_2 - Upgrade
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redhat/kernel-rt-debug-modules-extrato a version that resolves this vulnerability.Fixed in 6.12.0-211.47.1.el10_2 - Upgrade
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redhat/kernel-rt-debuginfoto a version that resolves this vulnerability.Fixed in 6.12.0-211.47.1.el10_2 - Upgrade
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redhat/kernel-rt-develto a version that resolves this vulnerability.Fixed in 6.12.0-211.47.1.el10_2 - Upgrade
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redhat/kernel-rt-modulesto a version that resolves this vulnerability.Fixed in 6.12.0-211.47.1.el10_2 - Upgrade
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redhat/kernel-rt-modules-coreto a version that resolves this vulnerability.Fixed in 6.12.0-211.47.1.el10_2 - Upgrade
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redhat/kernel-rt-modules-extrato a version that resolves this vulnerability.Fixed in 6.12.0-211.47.1.el10_2 - Upgrade
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redhat/kernel-toolsto a version that resolves this vulnerability.Fixed in 6.12.0-211.47.1.el10_2 - Upgrade
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redhat/kernel-tools-debuginfoto a version that resolves this vulnerability.Fixed in 6.12.0-211.47.1.el10_2 - Upgrade
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redhat/kernel-tools-libsto a version that resolves this vulnerability.Fixed in 6.12.0-211.47.1.el10_2 - Upgrade
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redhat/kernel-uki-virtto a version that resolves this vulnerability.Fixed in 6.12.0-211.47.1.el10_2 - Upgrade
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redhat/kernel-uki-virt-addonsto a version that resolves this vulnerability.Fixed in 6.12.0-211.47.1.el10_2 - Upgrade
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redhat/libperf-debuginfoto a version that resolves this vulnerability.Fixed in 6.12.0-211.47.1.el10_2 - Upgrade
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redhat/perfto a version that resolves this vulnerability.Fixed in 6.12.0-211.47.1.el10_2 - Upgrade
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redhat/perf-debuginfoto a version that resolves this vulnerability.Fixed in 6.12.0-211.47.1.el10_2 - Upgrade
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redhat/python3-perfto a version that resolves this vulnerability.Fixed in 6.12.0-211.47.1.el10_2 - Upgrade
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redhat/python3-perf-debuginfoto a version that resolves this vulnerability.Fixed in 6.12.0-211.47.1.el10_2 - Upgrade
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redhat/rtlato a version that resolves this vulnerability.Fixed in 6.12.0-211.47.1.el10_2 - Upgrade
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redhat/rvto a version that resolves this vulnerability.Fixed in 6.12.0-211.47.1.el10_2 - Upgrade
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redhat/kernel-debuginfo-common-s390xto a version that resolves this vulnerability.Fixed in 6.12.0-211.47.1.el10_2 - Upgrade
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redhat/kernel-zfcpdumpto a version that resolves this vulnerability.Fixed in 6.12.0-211.47.1.el10_2 - Upgrade
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redhat/kernel-zfcpdump-coreto a version that resolves this vulnerability.Fixed in 6.12.0-211.47.1.el10_2 - Upgrade
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redhat/kernel-zfcpdump-debuginfoto a version that resolves this vulnerability.Fixed in 6.12.0-211.47.1.el10_2 - Upgrade
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redhat/kernel-zfcpdump-develto a version that resolves this vulnerability.Fixed in 6.12.0-211.47.1.el10_2 - Upgrade
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redhat/kernel-zfcpdump-devel-matchedto a version that resolves this vulnerability.Fixed in 6.12.0-211.47.1.el10_2 - Upgrade
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redhat/kernel-zfcpdump-modulesto a version that resolves this vulnerability.Fixed in 6.12.0-211.47.1.el10_2 - Upgrade
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redhat/kernel-zfcpdump-modules-coreto a version that resolves this vulnerability.Fixed in 6.12.0-211.47.1.el10_2 - Upgrade
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redhat/kernel-zfcpdump-modules-extrato a version that resolves this vulnerability.Fixed in 6.12.0-211.47.1.el10_2 - Upgrade
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redhat/kernel-debuginfo-common-ppc64leto a version that resolves this vulnerability.Fixed in 6.12.0-211.47.1.el10_2 - Upgrade
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redhat/kernelto a version that resolves this vulnerability.Fixed in 6.12.0-211.47.1.el10_2.aa - Upgrade
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redhat/kernelto a version that resolves this vulnerability.Fixed in 64k-6.12.0-211.47.1.el10_2.aa - Upgrade
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redhat/kernelto a version that resolves this vulnerability.Fixed in 64k-core-6.12.0-211.47.1.el10_2.aa - Upgrade
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redhat/kernelto a version that resolves this vulnerability.Fixed in 64k-debug-6.12.0-211.47.1.el10_2.aa - Upgrade
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redhat/kernelto a version that resolves this vulnerability.Fixed in 64k-debug-core-6.12.0-211.47.1.el10_2.aa - Upgrade
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redhat/kernelto a version that resolves this vulnerability.Fixed in 64k-debug-debuginfo-6.12.0-211.47.1.el10_2.aa - Upgrade
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redhat/kernelto a version that resolves this vulnerability.Fixed in 64k-debug-devel-6.12.0-211.47.1.el10_2.aa - Upgrade
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redhat/kernelto a version that resolves this vulnerability.Fixed in 64k-debug-devel-matched-6.12.0-211.47.1.el10_2.aa - Upgrade
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redhat/kernelto a version that resolves this vulnerability.Fixed in 64k-debug-modules-6.12.0-211.47.1.el10_2.aa - Upgrade
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redhat/kernelto a version that resolves this vulnerability.Fixed in 64k-debug-modules-core-6.12.0-211.47.1.el10_2.aa - Upgrade
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redhat/kernelto a version that resolves this vulnerability.Fixed in 64k-debug-modules-extra-6.12.0-211.47.1.el10_2.aa - Upgrade
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redhat/kernelto a version that resolves this vulnerability.Fixed in 64k-debuginfo-6.12.0-211.47.1.el10_2.aa - Upgrade
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redhat/kernelto a version that resolves this vulnerability.Fixed in 64k-devel-6.12.0-211.47.1.el10_2.aa - Upgrade
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redhat/kernelto a version that resolves this vulnerability.Fixed in 64k-devel-matched-6.12.0-211.47.1.el10_2.aa - Upgrade
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redhat/kernelto a version that resolves this vulnerability.Fixed in 64k-modules-6.12.0-211.47.1.el10_2.aa - Upgrade
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redhat/kernelto a version that resolves this vulnerability.Fixed in 64k-modules-core-6.12.0-211.47.1.el10_2.aa - Upgrade
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redhat/kernelto a version that resolves this vulnerability.Fixed in 64k-modules-extra-6.12.0-211.47.1.el10_2.aa - Upgrade
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redhat/kernel-coreto a version that resolves this vulnerability.Fixed in 6.12.0-211.47.1.el10_2.aa - Upgrade
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redhat/kernel-debugto a version that resolves this vulnerability.Fixed in 6.12.0-211.47.1.el10_2.aa - Upgrade
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redhat/kernel-debug-coreto a version that resolves this vulnerability.Fixed in 6.12.0-211.47.1.el10_2.aa - Upgrade
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redhat/kernel-debug-debuginfoto a version that resolves this vulnerability.Fixed in 6.12.0-211.47.1.el10_2.aa - Upgrade
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redhat/kernel-debug-develto a version that resolves this vulnerability.Fixed in 6.12.0-211.47.1.el10_2.aa - Upgrade
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redhat/kernel-debug-devel-matchedto a version that resolves this vulnerability.Fixed in 6.12.0-211.47.1.el10_2.aa - Upgrade
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redhat/kernel-debug-modulesto a version that resolves this vulnerability.Fixed in 6.12.0-211.47.1.el10_2.aa - Upgrade
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redhat/kernel-debug-modules-coreto a version that resolves this vulnerability.Fixed in 6.12.0-211.47.1.el10_2.aa - Upgrade
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redhat/kernel-debug-modules-extrato a version that resolves this vulnerability.Fixed in 6.12.0-211.47.1.el10_2.aa - Upgrade
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redhat/kernel-debuginfoto a version that resolves this vulnerability.Fixed in 6.12.0-211.47.1.el10_2.aa - Upgrade
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redhat/kernel-debuginfo-common-aarch64to a version that resolves this vulnerability.Fixed in 6.12.0-211.47.1.el10_2.aa - Upgrade
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redhat/kernel-develto a version that resolves this vulnerability.Fixed in 6.12.0-211.47.1.el10_2.aa - Upgrade
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redhat/kernel-devel-matchedto a version that resolves this vulnerability.Fixed in 6.12.0-211.47.1.el10_2.aa - Upgrade
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redhat/kernel-headersto a version that resolves this vulnerability.Fixed in 6.12.0-211.47.1.el10_2.aa - Upgrade
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redhat/kernel-modulesto a version that resolves this vulnerability.Fixed in 6.12.0-211.47.1.el10_2.aa - Upgrade
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redhat/kernel-modules-coreto a version that resolves this vulnerability.Fixed in 6.12.0-211.47.1.el10_2.aa - Upgrade
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redhat/kernel-modules-extrato a version that resolves this vulnerability.Fixed in 6.12.0-211.47.1.el10_2.aa - Upgrade
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redhat/kernel-modules-extra-matchedto a version that resolves this vulnerability.Fixed in 6.12.0-211.47.1.el10_2.aa - Upgrade
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redhat/kernel-rtto a version that resolves this vulnerability.Fixed in 6.12.0-211.47.1.el10_2.aa - Upgrade
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redhat/kernel-rtto a version that resolves this vulnerability.Fixed in 64k-6.12.0-211.47.1.el10_2.aa - Upgrade
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redhat/kernel-rtto a version that resolves this vulnerability.Fixed in 64k-core-6.12.0-211.47.1.el10_2.aa - Upgrade
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redhat/kernel-rtto a version that resolves this vulnerability.Fixed in 64k-debug-6.12.0-211.47.1.el10_2.aa - Upgrade
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redhat/kernel-rtto a version that resolves this vulnerability.Fixed in 64k-debug-core-6.12.0-211.47.1.el10_2.aa - Upgrade
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redhat/kernel-rtto a version that resolves this vulnerability.Fixed in 64k-debug-debuginfo-6.12.0-211.47.1.el10_2.aa - Upgrade
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redhat/kernel-rtto a version that resolves this vulnerability.Fixed in 64k-debug-devel-6.12.0-211.47.1.el10_2.aa - Upgrade
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redhat/kernel-rtto a version that resolves this vulnerability.Fixed in 64k-debug-modules-6.12.0-211.47.1.el10_2.aa - Upgrade
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redhat/kernel-rtto a version that resolves this vulnerability.Fixed in 64k-debug-modules-core-6.12.0-211.47.1.el10_2.aa - Upgrade
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redhat/kernel-rtto a version that resolves this vulnerability.Fixed in 64k-debug-modules-extra-6.12.0-211.47.1.el10_2.aa - Upgrade
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redhat/kernel-rtto a version that resolves this vulnerability.Fixed in 64k-debuginfo-6.12.0-211.47.1.el10_2.aa - Upgrade
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redhat/kernel-rtto a version that resolves this vulnerability.Fixed in 64k-devel-6.12.0-211.47.1.el10_2.aa - Upgrade
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redhat/kernel-rtto a version that resolves this vulnerability.Fixed in 64k-modules-6.12.0-211.47.1.el10_2.aa - Upgrade
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redhat/kernel-rtto a version that resolves this vulnerability.Fixed in 64k-modules-core-6.12.0-211.47.1.el10_2.aa - Upgrade
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redhat/kernel-rtto a version that resolves this vulnerability.Fixed in 64k-modules-extra-6.12.0-211.47.1.el10_2.aa - Upgrade
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redhat/kernel-rt-coreto a version that resolves this vulnerability.Fixed in 6.12.0-211.47.1.el10_2.aa - Upgrade
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redhat/kernel-rt-debugto a version that resolves this vulnerability.Fixed in 6.12.0-211.47.1.el10_2.aa - Upgrade
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redhat/kernel-rt-debug-coreto a version that resolves this vulnerability.Fixed in 6.12.0-211.47.1.el10_2.aa - Upgrade
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redhat/kernel-rt-debug-debuginfoto a version that resolves this vulnerability.Fixed in 6.12.0-211.47.1.el10_2.aa - Upgrade
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redhat/kernel-rt-debug-develto a version that resolves this vulnerability.Fixed in 6.12.0-211.47.1.el10_2.aa - Upgrade
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redhat/kernel-rt-debug-modulesto a version that resolves this vulnerability.Fixed in 6.12.0-211.47.1.el10_2.aa - Upgrade
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redhat/kernel-rt-debug-modules-coreto a version that resolves this vulnerability.Fixed in 6.12.0-211.47.1.el10_2.aa - Upgrade
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redhat/kernel-rt-debug-modules-extrato a version that resolves this vulnerability.Fixed in 6.12.0-211.47.1.el10_2.aa - Upgrade
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redhat/kernel-rt-debuginfoto a version that resolves this vulnerability.Fixed in 6.12.0-211.47.1.el10_2.aa - Upgrade
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redhat/kernel-rt-develto a version that resolves this vulnerability.Fixed in 6.12.0-211.47.1.el10_2.aa - Upgrade
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redhat/kernel-rt-modulesto a version that resolves this vulnerability.Fixed in 6.12.0-211.47.1.el10_2.aa - Upgrade
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redhat/kernel-rt-modules-coreto a version that resolves this vulnerability.Fixed in 6.12.0-211.47.1.el10_2.aa - Upgrade
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redhat/kernel-rt-modules-extrato a version that resolves this vulnerability.Fixed in 6.12.0-211.47.1.el10_2.aa - Upgrade
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redhat/kernel-toolsto a version that resolves this vulnerability.Fixed in 6.12.0-211.47.1.el10_2.aa - Upgrade
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redhat/kernel-tools-debuginfoto a version that resolves this vulnerability.Fixed in 6.12.0-211.47.1.el10_2.aa - Upgrade
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redhat/kernel-tools-libsto a version that resolves this vulnerability.Fixed in 6.12.0-211.47.1.el10_2.aa - Upgrade
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redhat/kernel-uki-virtto a version that resolves this vulnerability.Fixed in 6.12.0-211.47.1.el10_2.aa - Upgrade
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redhat/kernel-uki-virt-addonsto a version that resolves this vulnerability.Fixed in 6.12.0-211.47.1.el10_2.aa - Upgrade
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redhat/libperf-debuginfoto a version that resolves this vulnerability.Fixed in 6.12.0-211.47.1.el10_2.aa - Upgrade
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redhat/perfto a version that resolves this vulnerability.Fixed in 6.12.0-211.47.1.el10_2.aa - Upgrade
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redhat/perf-debuginfoto a version that resolves this vulnerability.Fixed in 6.12.0-211.47.1.el10_2.aa - Upgrade
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redhat/python3-perfto a version that resolves this vulnerability.Fixed in 6.12.0-211.47.1.el10_2.aa - Upgrade
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redhat/python3-perf-debuginfoto a version that resolves this vulnerability.Fixed in 6.12.0-211.47.1.el10_2.aa - Upgrade
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redhat/rtlato a version that resolves this vulnerability.Fixed in 6.12.0-211.47.1.el10_2.aa - Upgrade
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redhat/rvto a version that resolves this vulnerability.Fixed in 6.12.0-211.47.1.el10_2.aa - Upgrade
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redhat/kernel-cross-headersto a version that resolves this vulnerability.Fixed in 6.12.0-211.47.1.el10_2 - Upgrade
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redhat/kernel-tools-libs-develto a version that resolves this vulnerability.Fixed in 6.12.0-211.47.1.el10_2 - Upgrade
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redhat/libperfto a version that resolves this vulnerability.Fixed in 6.12.0-211.47.1.el10_2 - Upgrade
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redhat/kernel-cross-headersto a version that resolves this vulnerability.Fixed in 6.12.0-211.47.1.el10_2.aa - Upgrade
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redhat/kernel-tools-libs-develto a version that resolves this vulnerability.Fixed in 6.12.0-211.47.1.el10_2.aa - Upgrade
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redhat/libperfto a version that resolves this vulnerability.Fixed in 6.12.0-211.47.1.el10_2.aa - Upgrade
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RHEL 10.2.z kernel erratato a version that resolves this vulnerability.Patch RHEL-185311 - Compensating control
After applying the kernel update, reboot the system because the material states: "The system must be rebooted for this update to take effect."
Event History
Frequently Asked Questions
What is the severity of RHSA-2026:54343?
The severity of RHSA-2026:54343 is high, rated at 7.
How do I fix RHSA-2026:54343?
To fix RHSA-2026:54343, apply the latest kernel security, bug fix, and enhancement updates provided by Red Hat.
What systems are affected by RHSA-2026:54343?
RHSA-2026:54343 affects various versions of Red Hat Enterprise Linux for ARM 64, x86_64, and IBM z Systems.
What type of issues does RHSA-2026:54343 address?
RHSA-2026:54343 addresses kernel security vulnerabilities, bugs, and includes system enhancements.
When was RHSA-2026:54343 published?
RHSA-2026:54343 was published on August 12, 2026.