RHSA-2026:25191: Critical: kernel security update
Critical: kernel security update
Other sources
The kernel packages contain the Linux kernel, the core of any Linux operating system.Security Fix(es): kernel: Linux kernel: Use-after-free in bonding driver leads to denial of service (CVE-2026-31419) kernel: Linux kernel: Denial of Service in erofs filesystem (CVE-2026-31467) kernel: can: raw: fix ro->uniq use-after-free in rawrcv() (CVE-2026-31532) kernel: ALSA: 6fire: fix use-after-free on disconnect (CVE-2026-31581) kernel: ip6tunnel: clear skb2->cb[] in ip4ip6err() (CVE-2026-43037) kernel: ipv6: rpl: reserve maclen headroom when recompressed SRH grows (CVE-2026-43501) kernel: selinux: fix overlayfs mmap() and mprotect() access checks (CVE-2026-46054) 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 6.12.0-211.22.1.el10_2 - Upgrade
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redhat/kernel-abi-stableliststo a version that resolves this vulnerability.Fixed in 6.12.0-211.22.1.el10_2 - Upgrade
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redhat/kernel-coreto a version that resolves this vulnerability.Fixed in 6.12.0-211.22.1.el10_2 - Upgrade
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redhat/kernel-debugto a version that resolves this vulnerability.Fixed in 6.12.0-211.22.1.el10_2 - Upgrade
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redhat/kernel-debug-coreto a version that resolves this vulnerability.Fixed in 6.12.0-211.22.1.el10_2 - Upgrade
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redhat/kernel-debug-debuginfoto a version that resolves this vulnerability.Fixed in 6.12.0-211.22.1.el10_2 - Upgrade
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redhat/kernel-debug-develto a version that resolves this vulnerability.Fixed in 6.12.0-211.22.1.el10_2 - Upgrade
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redhat/kernel-debug-devel-matchedto a version that resolves this vulnerability.Fixed in 6.12.0-211.22.1.el10_2 - Upgrade
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redhat/kernel-debug-modulesto a version that resolves this vulnerability.Fixed in 6.12.0-211.22.1.el10_2 - Upgrade
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redhat/kernel-debug-modules-coreto a version that resolves this vulnerability.Fixed in 6.12.0-211.22.1.el10_2 - Upgrade
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redhat/kernel-debug-modules-extrato a version that resolves this vulnerability.Fixed in 6.12.0-211.22.1.el10_2 - Upgrade
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redhat/kernel-debug-uki-virtto a version that resolves this vulnerability.Fixed in 6.12.0-211.22.1.el10_2 - Upgrade
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redhat/kernel-debuginfoto a version that resolves this vulnerability.Fixed in 6.12.0-211.22.1.el10_2 - Upgrade
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redhat/kernel-develto a version that resolves this vulnerability.Fixed in 6.12.0-211.22.1.el10_2 - Upgrade
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redhat/kernel-devel-matchedto a version that resolves this vulnerability.Fixed in 6.12.0-211.22.1.el10_2 - Upgrade
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redhat/kernel-docto a version that resolves this vulnerability.Fixed in 6.12.0-211.22.1.el10_2 - Upgrade
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redhat/kernel-headersto a version that resolves this vulnerability.Fixed in 6.12.0-211.22.1.el10_2 - Upgrade
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redhat/kernel-modulesto a version that resolves this vulnerability.Fixed in 6.12.0-211.22.1.el10_2 - Upgrade
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redhat/kernel-modules-coreto a version that resolves this vulnerability.Fixed in 6.12.0-211.22.1.el10_2 - Upgrade
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redhat/kernel-modules-extrato a version that resolves this vulnerability.Fixed in 6.12.0-211.22.1.el10_2 - Upgrade
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redhat/kernel-modules-extra-matchedto a version that resolves this vulnerability.Fixed in 6.12.0-211.22.1.el10_2 - Upgrade
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redhat/kernel-rtto a version that resolves this vulnerability.Fixed in 6.12.0-211.22.1.el10_2 - Upgrade
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redhat/kernel-rt-coreto a version that resolves this vulnerability.Fixed in 6.12.0-211.22.1.el10_2 - Upgrade
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redhat/kernel-rt-debugto a version that resolves this vulnerability.Fixed in 6.12.0-211.22.1.el10_2 - Upgrade
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redhat/kernel-rt-debug-coreto a version that resolves this vulnerability.Fixed in 6.12.0-211.22.1.el10_2 - Upgrade
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redhat/kernel-rt-debug-debuginfoto a version that resolves this vulnerability.Fixed in 6.12.0-211.22.1.el10_2 - Upgrade
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redhat/kernel-rt-debug-develto a version that resolves this vulnerability.Fixed in 6.12.0-211.22.1.el10_2 - Upgrade
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redhat/kernel-rt-debug-modulesto a version that resolves this vulnerability.Fixed in 6.12.0-211.22.1.el10_2 - Upgrade
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redhat/kernel-rt-debug-modules-coreto a version that resolves this vulnerability.Fixed in 6.12.0-211.22.1.el10_2 - Upgrade
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redhat/kernel-rt-debug-modules-extrato a version that resolves this vulnerability.Fixed in 6.12.0-211.22.1.el10_2 - Upgrade
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redhat/kernel-rt-debuginfoto a version that resolves this vulnerability.Fixed in 6.12.0-211.22.1.el10_2 - Upgrade
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redhat/kernel-rt-develto a version that resolves this vulnerability.Fixed in 6.12.0-211.22.1.el10_2 - Upgrade
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redhat/kernel-rt-modulesto a version that resolves this vulnerability.Fixed in 6.12.0-211.22.1.el10_2 - Upgrade
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redhat/kernel-rt-modules-coreto a version that resolves this vulnerability.Fixed in 6.12.0-211.22.1.el10_2 - Upgrade
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redhat/kernel-rt-modules-extrato a version that resolves this vulnerability.Fixed in 6.12.0-211.22.1.el10_2 - Upgrade
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redhat/kernel-toolsto a version that resolves this vulnerability.Fixed in 6.12.0-211.22.1.el10_2 - Upgrade
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redhat/kernel-tools-debuginfoto a version that resolves this vulnerability.Fixed in 6.12.0-211.22.1.el10_2 - Upgrade
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redhat/kernel-tools-libsto a version that resolves this vulnerability.Fixed in 6.12.0-211.22.1.el10_2 - Upgrade
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redhat/kernel-uki-virtto a version that resolves this vulnerability.Fixed in 6.12.0-211.22.1.el10_2 - Upgrade
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redhat/kernel-uki-virt-addonsto a version that resolves this vulnerability.Fixed in 6.12.0-211.22.1.el10_2 - Upgrade
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redhat/libperf-debuginfoto a version that resolves this vulnerability.Fixed in 6.12.0-211.22.1.el10_2 - Upgrade
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redhat/perfto a version that resolves this vulnerability.Fixed in 6.12.0-211.22.1.el10_2 - Upgrade
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redhat/perf-debuginfoto a version that resolves this vulnerability.Fixed in 6.12.0-211.22.1.el10_2 - Upgrade
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redhat/python3-perfto a version that resolves this vulnerability.Fixed in 6.12.0-211.22.1.el10_2 - Upgrade
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redhat/python3-perf-debuginfoto a version that resolves this vulnerability.Fixed in 6.12.0-211.22.1.el10_2 - Upgrade
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redhat/rtlato a version that resolves this vulnerability.Fixed in 6.12.0-211.22.1.el10_2 - Upgrade
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redhat/rvto a version that resolves this vulnerability.Fixed in 6.12.0-211.22.1.el10_2 - Upgrade
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redhat/kernel-debuginfo-common-s390xto a version that resolves this vulnerability.Fixed in 6.12.0-211.22.1.el10_2 - Upgrade
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redhat/kernel-zfcpdumpto a version that resolves this vulnerability.Fixed in 6.12.0-211.22.1.el10_2 - Upgrade
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redhat/kernel-zfcpdump-coreto a version that resolves this vulnerability.Fixed in 6.12.0-211.22.1.el10_2 - Upgrade
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redhat/kernel-zfcpdump-debuginfoto a version that resolves this vulnerability.Fixed in 6.12.0-211.22.1.el10_2 - Upgrade
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redhat/kernel-zfcpdump-devel-matchedto a version that resolves this vulnerability.Fixed in 6.12.0-211.22.1.el10_2 - Upgrade
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redhat/kernel-zfcpdump-modulesto a version that resolves this vulnerability.Fixed in 6.12.0-211.22.1.el10_2 - Upgrade
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redhat/kernel-zfcpdump-modules-coreto a version that resolves this vulnerability.Fixed in 6.12.0-211.22.1.el10_2 - Upgrade
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redhat/kernel-zfcpdump-modules-extrato a version that resolves this vulnerability.Fixed in 6.12.0-211.22.1.el10_2 - Upgrade
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redhat/kernel-debuginfo-common-ppc64leto a version that resolves this vulnerability.Fixed in 6.12.0-211.22.1.el10_2 - Upgrade
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redhat/kernelto a version that resolves this vulnerability.Fixed in 6.12.0-211.22.1.el10_2.aa - Upgrade
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redhat/kernelto a version that resolves this vulnerability.Fixed in 64k-6.12.0-211.22.1.el10_2.aa - Upgrade
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redhat/kernelto a version that resolves this vulnerability.Fixed in 64k-core-6.12.0-211.22.1.el10_2.aa - Upgrade
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redhat/kernelto a version that resolves this vulnerability.Fixed in 64k-debug-6.12.0-211.22.1.el10_2.aa - Upgrade
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redhat/kernelto a version that resolves this vulnerability.Fixed in 64k-debug-core-6.12.0-211.22.1.el10_2.aa - Upgrade
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redhat/kernelto a version that resolves this vulnerability.Fixed in 64k-debug-debuginfo-6.12.0-211.22.1.el10_2.aa - Upgrade
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redhat/kernelto a version that resolves this vulnerability.Fixed in 64k-debug-devel-6.12.0-211.22.1.el10_2.aa - Upgrade
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redhat/kernelto a version that resolves this vulnerability.Fixed in 64k-debug-devel-matched-6.12.0-211.22.1.el10_2.aa - Upgrade
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redhat/kernelto a version that resolves this vulnerability.Fixed in 64k-debug-modules-6.12.0-211.22.1.el10_2.aa - Upgrade
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redhat/kernelto a version that resolves this vulnerability.Fixed in 64k-debug-modules-core-6.12.0-211.22.1.el10_2.aa - Upgrade
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redhat/kernelto a version that resolves this vulnerability.Fixed in 64k-debug-modules-extra-6.12.0-211.22.1.el10_2.aa - Upgrade
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redhat/kernelto a version that resolves this vulnerability.Fixed in 64k-debuginfo-6.12.0-211.22.1.el10_2.aa - Upgrade
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redhat/kernelto a version that resolves this vulnerability.Fixed in 64k-devel-6.12.0-211.22.1.el10_2.aa - Upgrade
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redhat/kernelto a version that resolves this vulnerability.Fixed in 64k-devel-matched-6.12.0-211.22.1.el10_2.aa - Upgrade
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redhat/kernelto a version that resolves this vulnerability.Fixed in 64k-modules-6.12.0-211.22.1.el10_2.aa - Upgrade
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redhat/kernelto a version that resolves this vulnerability.Fixed in 64k-modules-core-6.12.0-211.22.1.el10_2.aa - Upgrade
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redhat/kernelto a version that resolves this vulnerability.Fixed in 64k-modules-extra-6.12.0-211.22.1.el10_2.aa - Upgrade
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redhat/kernel-coreto a version that resolves this vulnerability.Fixed in 6.12.0-211.22.1.el10_2.aa - Upgrade
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redhat/kernel-debugto a version that resolves this vulnerability.Fixed in 6.12.0-211.22.1.el10_2.aa - Upgrade
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redhat/kernel-debug-coreto a version that resolves this vulnerability.Fixed in 6.12.0-211.22.1.el10_2.aa - Upgrade
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redhat/kernel-debug-debuginfoto a version that resolves this vulnerability.Fixed in 6.12.0-211.22.1.el10_2.aa - Upgrade
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redhat/kernel-debug-develto a version that resolves this vulnerability.Fixed in 6.12.0-211.22.1.el10_2.aa - Upgrade
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redhat/kernel-debug-devel-matchedto a version that resolves this vulnerability.Fixed in 6.12.0-211.22.1.el10_2.aa - Upgrade
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redhat/kernel-debug-modulesto a version that resolves this vulnerability.Fixed in 6.12.0-211.22.1.el10_2.aa - Upgrade
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redhat/kernel-debug-modules-coreto a version that resolves this vulnerability.Fixed in 6.12.0-211.22.1.el10_2.aa - Upgrade
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redhat/kernel-debug-modules-extrato a version that resolves this vulnerability.Fixed in 6.12.0-211.22.1.el10_2.aa - Upgrade
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redhat/kernel-debuginfoto a version that resolves this vulnerability.Fixed in 6.12.0-211.22.1.el10_2.aa - Upgrade
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redhat/kernel-debuginfo-common-aarch64to a version that resolves this vulnerability.Fixed in 6.12.0-211.22.1.el10_2.aa - Upgrade
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redhat/kernel-develto a version that resolves this vulnerability.Fixed in 6.12.0-211.22.1.el10_2.aa - Upgrade
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redhat/kernel-devel-matchedto a version that resolves this vulnerability.Fixed in 6.12.0-211.22.1.el10_2.aa - Upgrade
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redhat/kernel-headersto a version that resolves this vulnerability.Fixed in 6.12.0-211.22.1.el10_2.aa - Upgrade
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redhat/kernel-modulesto a version that resolves this vulnerability.Fixed in 6.12.0-211.22.1.el10_2.aa - Upgrade
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redhat/kernel-modules-coreto a version that resolves this vulnerability.Fixed in 6.12.0-211.22.1.el10_2.aa - Upgrade
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redhat/kernel-modules-extrato a version that resolves this vulnerability.Fixed in 6.12.0-211.22.1.el10_2.aa - Upgrade
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redhat/kernel-modules-extra-matchedto a version that resolves this vulnerability.Fixed in 6.12.0-211.22.1.el10_2.aa - Upgrade
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redhat/kernel-rtto a version that resolves this vulnerability.Fixed in 6.12.0-211.22.1.el10_2.aa - Upgrade
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redhat/kernel-rtto a version that resolves this vulnerability.Fixed in 64k-6.12.0-211.22.1.el10_2.aa - Upgrade
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redhat/kernel-rtto a version that resolves this vulnerability.Fixed in 64k-core-6.12.0-211.22.1.el10_2.aa - Upgrade
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redhat/kernel-rtto a version that resolves this vulnerability.Fixed in 64k-debug-6.12.0-211.22.1.el10_2.aa - Upgrade
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redhat/kernel-rtto a version that resolves this vulnerability.Fixed in 64k-debug-core-6.12.0-211.22.1.el10_2.aa - Upgrade
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redhat/kernel-rtto a version that resolves this vulnerability.Fixed in 64k-debug-debuginfo-6.12.0-211.22.1.el10_2.aa - Upgrade
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redhat/kernel-rtto a version that resolves this vulnerability.Fixed in 64k-debug-devel-6.12.0-211.22.1.el10_2.aa - Upgrade
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redhat/kernel-rtto a version that resolves this vulnerability.Fixed in 64k-debug-modules-6.12.0-211.22.1.el10_2.aa - Upgrade
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redhat/kernel-rtto a version that resolves this vulnerability.Fixed in 64k-debug-modules-core-6.12.0-211.22.1.el10_2.aa - Upgrade
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redhat/kernel-rtto a version that resolves this vulnerability.Fixed in 64k-debug-modules-extra-6.12.0-211.22.1.el10_2.aa - Upgrade
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redhat/kernel-rtto a version that resolves this vulnerability.Fixed in 64k-debuginfo-6.12.0-211.22.1.el10_2.aa - Upgrade
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redhat/kernel-rtto a version that resolves this vulnerability.Fixed in 64k-devel-6.12.0-211.22.1.el10_2.aa - Upgrade
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redhat/kernel-rtto a version that resolves this vulnerability.Fixed in 64k-modules-6.12.0-211.22.1.el10_2.aa - Upgrade
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redhat/kernel-rtto a version that resolves this vulnerability.Fixed in 64k-modules-core-6.12.0-211.22.1.el10_2.aa - Upgrade
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redhat/kernel-rtto a version that resolves this vulnerability.Fixed in 64k-modules-extra-6.12.0-211.22.1.el10_2.aa - Upgrade
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redhat/kernel-rt-coreto a version that resolves this vulnerability.Fixed in 6.12.0-211.22.1.el10_2.aa - Upgrade
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redhat/kernel-rt-debugto a version that resolves this vulnerability.Fixed in 6.12.0-211.22.1.el10_2.aa - Upgrade
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redhat/kernel-rt-debug-coreto a version that resolves this vulnerability.Fixed in 6.12.0-211.22.1.el10_2.aa - Upgrade
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redhat/kernel-rt-debug-debuginfoto a version that resolves this vulnerability.Fixed in 6.12.0-211.22.1.el10_2.aa - Upgrade
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redhat/kernel-rt-debug-develto a version that resolves this vulnerability.Fixed in 6.12.0-211.22.1.el10_2.aa - Upgrade
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redhat/kernel-rt-debug-modulesto a version that resolves this vulnerability.Fixed in 6.12.0-211.22.1.el10_2.aa - Upgrade
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redhat/kernel-rt-debug-modules-coreto a version that resolves this vulnerability.Fixed in 6.12.0-211.22.1.el10_2.aa - Upgrade
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redhat/kernel-rt-debug-modules-extrato a version that resolves this vulnerability.Fixed in 6.12.0-211.22.1.el10_2.aa - Upgrade
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redhat/kernel-rt-debuginfoto a version that resolves this vulnerability.Fixed in 6.12.0-211.22.1.el10_2.aa - Upgrade
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redhat/kernel-rt-develto a version that resolves this vulnerability.Fixed in 6.12.0-211.22.1.el10_2.aa - Upgrade
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redhat/kernel-rt-modulesto a version that resolves this vulnerability.Fixed in 6.12.0-211.22.1.el10_2.aa - Upgrade
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redhat/kernel-rt-modules-coreto a version that resolves this vulnerability.Fixed in 6.12.0-211.22.1.el10_2.aa - Upgrade
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redhat/kernel-rt-modules-extrato a version that resolves this vulnerability.Fixed in 6.12.0-211.22.1.el10_2.aa - Upgrade
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redhat/kernel-toolsto a version that resolves this vulnerability.Fixed in 6.12.0-211.22.1.el10_2.aa - Upgrade
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redhat/kernel-tools-debuginfoto a version that resolves this vulnerability.Fixed in 6.12.0-211.22.1.el10_2.aa - Upgrade
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redhat/kernel-tools-libsto a version that resolves this vulnerability.Fixed in 6.12.0-211.22.1.el10_2.aa - Upgrade
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redhat/kernel-uki-virtto a version that resolves this vulnerability.Fixed in 6.12.0-211.22.1.el10_2.aa - Upgrade
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redhat/kernel-uki-virt-addonsto a version that resolves this vulnerability.Fixed in 6.12.0-211.22.1.el10_2.aa - Upgrade
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redhat/libperf-debuginfoto a version that resolves this vulnerability.Fixed in 6.12.0-211.22.1.el10_2.aa - Upgrade
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redhat/perfto a version that resolves this vulnerability.Fixed in 6.12.0-211.22.1.el10_2.aa - Upgrade
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redhat/perf-debuginfoto a version that resolves this vulnerability.Fixed in 6.12.0-211.22.1.el10_2.aa - Upgrade
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redhat/python3-perfto a version that resolves this vulnerability.Fixed in 6.12.0-211.22.1.el10_2.aa - Upgrade
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redhat/python3-perf-debuginfoto a version that resolves this vulnerability.Fixed in 6.12.0-211.22.1.el10_2.aa - Upgrade
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redhat/rtlato a version that resolves this vulnerability.Fixed in 6.12.0-211.22.1.el10_2.aa - Upgrade
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redhat/rvto a version that resolves this vulnerability.Fixed in 6.12.0-211.22.1.el10_2.aa - Upgrade
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redhat/kernel-cross-headersto a version that resolves this vulnerability.Fixed in 6.12.0-211.22.1.el10_2 - Upgrade
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redhat/kernel-tools-libs-develto a version that resolves this vulnerability.Fixed in 6.12.0-211.22.1.el10_2 - Upgrade
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redhat/libperfto a version that resolves this vulnerability.Fixed in 6.12.0-211.22.1.el10_2 - Upgrade
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redhat/kernel-cross-headersto a version that resolves this vulnerability.Fixed in 6.12.0-211.22.1.el10_2.aa - Upgrade
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redhat/kernel-tools-libs-develto a version that resolves this vulnerability.Fixed in 6.12.0-211.22.1.el10_2.aa - Upgrade
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redhat/libperfto a version that resolves this vulnerability.Fixed in 6.12.0-211.22.1.el10_2.aa - Upgrade
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redhat/kernel-rtto a version that resolves this vulnerability.Fixed in 64k-devel-matched-6.12.0-211.22.1.el10_2.aa
Event History
Frequently Asked Questions
What is the severity of RHSA-2026:25191?
The severity of RHSA-2026:25191 is critical with a CVSS score of 9.
What vulnerabilities are addressed in RHSA-2026:25191?
RHSA-2026:25191 addresses a use-after-free vulnerability in the bonding driver and a denial of service issue in the erofs filesystem.
How do I fix RHSA-2026:25191?
To fix RHSA-2026:25191, apply the kernel security update and reboot the system for the changes to take effect.
What packages are affected by RHSA-2026:25191?
The affected packages include redhat/kernel, redhat/kernel-rt, redhat/kernel-core, among others.
Is a system reboot required for RHSA-2026:25191?
Yes, a system reboot is required for the kernel security update included in RHSA-2026:25191 to take effect.