Red Hat Product Errata RHSA-2026:27704 - Security Advisory Issued: 2026-06-22 Updated: 2026-06-22 RHSA-2026:27704 - Security Advisory Overview Updated Packages Synopsis Important: kernel security update Type/Severity Security Advisory: Important Red Hat Lightspeed patch analysis Identify and remediate systems affected by this advisory. View affected systems Topic An update for kernel is now available for Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support and Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-On. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section. Description The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fix(es): kernel: net/sched: act_pedit: extend the writable skb range per key (CVE-2026-46331) 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. Solution For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258 The system must be rebooted for this update to take effect. Affected Products Red Hat Enterprise Linux for x86_64 - Extended Update Support Extension 8.6 x86_64 Red Hat Enterprise Linux Server - AUS 8.6 x86_64 Fixes BZ - 2479492 - CVE-2026-46331 kernel: net/sched: act_pedit: extend the writable skb range per key CVEs CVE-2026-46331 References https://access.redhat.com/security/updates/classification/#important Note: More recent versions of these packages may be available. Click a package name for more details. Red Hat Enterprise Linux for x86_64 - Extended Update Support Extension 8.6 SRPM kernel-4.18.0-372.197.1.el8_6.src.rpm SHA-256: a3f447b6ec9735b05121a1e4e1bd0c9ecd09b45d3bb89eb6c1fa816dbb31018c x86_64 bpftool-4.18.0-372.197.1.el8_6.x86_64.rpm SHA-256: 32cbeffb7fff584e4a09b57bfa06c3cb3de98bc6fba8bdaa26a5053d9c31208c bpftool-debuginfo-4.18.0-372.197.1.el8_6.x86_64.rpm SHA-256: b3cea7df5fc26c755acb75d34ba98f411ac6eeb410965044c4c39cbe953d4293 kernel-4.18.0-372.197.1.el8_6.x86_64.rpm SHA-256: ea47b994470cb80c16cc1fd898ed00916100e96bac6ccc96695b410fdb2e0548 kernel-abi-stablelists-4.18.0-372.197.1.el8_6.noarch.rpm SHA-256: 003409e48b650612c9a6567dc6018ea14ee6fe66497a8c868fdeb7e7e9b290fb kernel-core-4.18.0-372.197.1.el8_6.x86_64.rpm SHA-256: dcd24b0c87e09a0e822312b6c2ea6a1a28ea9442c07afcea72e7c03984e99427 kernel-cross-headers-4.18.0-372.197.1.el8_6.x86_64.rpm SHA-256: 79e8b41da86f54f32e350ab184e31bdfcf0d44099624f9dff079a10101915a0c kernel-debug-4.18.0-372.197.1.el8_6.x86_64.rpm SHA-256: 7a60519512c2aa28c3830a1978241e8497ec2dc1469a3fb47b37923a7b3d54fe kernel-debug-core-4.18.0-372.197.1.el8_6.x86_64.rpm SHA-256: 731a2a47233b8b281079d435751ab4a9828ddb6a55721076b6f21c4fed977a30 kernel-debug-debuginfo-4.18.0-372.197.1.el8_6.x86_64.rpm SHA-256: 55d36db45a7cebf381ee1fac90de801217b375fb7d24e7d7fb9a057653857776 kernel-debug-devel-4.18.0-372.197.1.el8_6.x86_64.rpm SHA-256: c59214a7d14a6802a9a2e930317411d19d2fa7dba1b51b0b4ac72c55b097ffe9 kernel-debug-modules-4.18.0-372.197.1.el8_6.x86_64.rpm SHA-256: fb21815c7ea70458c8a83284a9c3e8bbcb084059790aee6fcfd5f45e8a4a435b kernel-debug-modules-extra-4.18.0-372.197.1.el8_6.x86_64.rpm SHA-256: 86572636d50d23b1bb2c110f9b4d99f695c8b6f5dd10f8f26da5b9693a46ad6c kernel-debuginfo-4.18.0-372.197.1.el8_6.x86_64.rpm SHA-256: f656daf38a1f9a11541045a16eabb741680b1df4947150250c693a2e6f7e47f4 kernel-debuginfo-common-x86_64-4.18.0-372.197.1.el8_6.x86_64.rpm SHA-256: 831c5f3891ec79267242cedb8bf1e517885ad966713f466323ae4e01cc39406e kernel-devel-4.18.0-372.197.1.el8_6.x86_64.rpm SHA-256: f44a8626fff95f883de368d02a2014b92dca7d31d649de34fe6c92f9f5ea7f62 kernel-doc-4.18.0-372.197.1.el8_6.noarch.rpm SHA-256: b64015bfef875b15d29078eec0981f57c445a3135e555886c46ea23f02c1c385 kernel-headers-4.18.0-372.197.1.el8_6.x86_64.rpm SHA-256: 6f8f70a4de2553b356392c4362257da715781aa7267c6c2a0f446bae8429f2c4 kernel-modules-4.18.0-372.197.1.el8_6.x86_64.rpm SHA-256: a04f5b0caa85c5b86d3f8e19f5904d78002de597e4ce85ad061a27964f074ba5 kernel-modules-extra-4.18.0-372.197.1.el8_6.x86_64.rpm SHA-256: 052409bb09d685c083baaa8e317adcadad4e9e877e89cf5fba4e730e409e0407 kernel-tools-4.18.0-372.197.1.el8_6.x86_64.rpm SHA-256: 71b7d922318984e4f2d4af6bc11b6acf72b72c0d28103fe40ac748f6cba3f453 kernel-tools-debuginfo-4.18.0-372.197.1.el8_6.x86_64.rpm SHA-256: ad537bd65809b14a71055cc837c6dca6c08fbb198d689d437f36e59d59b049fb kernel-tools-libs-4.18.0-372.197.1.el8_6.x86_64.rpm SHA-256: 211f93d655698631ac36d678c17cbf0edcddcc48290aaabcabd75711ef088c0b perf-4.18.0-372.197.1.el8_6.x86_64.rpm SHA-256: b7c717e24b0b81f02fc0490c1a79276cafc93709251523525a11749e8ac48048 perf-debuginfo-4.18.0-372.197.1.el8_6.x86_64.rpm SHA-256: 7849d57afbd6e8a136a0a27506d37e84f0ba0ac522a141bf6a365ed1419983ed python3-perf-4.18.0-372.197.1.el8_6.x86_64.rpm SHA-256: 999d4ea106f6ea2fc86b4c20a0086a482313473d1f20bc1a58b8e283c232564f python3-perf-debuginfo-4.18.0-372.197.1.el8_6.x86_64.rpm SHA-256: 9aa67fdd65a7b931176fe8b5853d44f7bf502dc00e317c4363ccff33608a6f59 Red Hat Enterprise Linux Server - AUS 8.6 SRPM kernel-4.18.0-372.197.1.el8_6.src.rpm SHA-256: a3f447b6ec9735b05121a1e4e1bd0c9ecd09b45d3bb89eb6c1fa816dbb31018c x86_64 bpftool-4.18.0-372.197.1.el8_6.x86_64.rpm SHA-256: 32cbeffb7fff584e4a09b57bfa06c3cb3de98bc6fba8bdaa26a5053d9c31208c bpftool-debuginfo-4.18.0-372.197.1.el8_6.x86_64.rpm SHA-256: b3cea7df5fc26c755acb75d34ba98f411ac6eeb410965044c4c39cbe953d4293 kernel-4.18.0-372.197.1.el8_6.x86_64.rpm SHA-256: ea47b994470cb80c16cc1fd898ed00916100e96bac6ccc96695b410fdb2e0548 kernel-abi-stablelists-4.18.0-372.197.1.el8_6.noarch.rpm SHA-256: 003409e48b650612c9a6567dc6018ea14ee6fe66497a8c868fdeb7e7e9b290fb kernel-core-4.18.0-372.197.1.el8_6.x86_64.rpm SHA-256: dcd24b0c87e09a0e822312b6c2ea6a1a28ea9442c07afcea72e7c03984e99427 kernel-cross-headers-4.18.0-372.197.1.el8_6.x86_64.rpm SHA-256: 79e8b41da86f54f32e350ab184e31bdfcf0d44099624f9dff079a10101915a0c kernel-debug-4.18.0-372.197.1.el8_6.x86_64.rpm SHA-256: 7a60519512c2aa28c3830a1978241e8497ec2dc1469a3fb47b37923a7b3d54fe kernel-debug-core-4.18.0-372.197.1.el8_6.x86_64.rpm SHA-256: 731a2a47233b8b281079d435751ab4a9828ddb6a55721076b6f21c4fed977a30 kernel-debug-debuginfo-4.18.0-372.197.1.el8_6.x86_64.rpm SHA-256: 55d36db45a7cebf381ee1fac90de801217b375fb7d24e7d7fb9a057653857776 kernel-debug-devel-4.18.0-372.197.1.el8_6.x86_64.rpm SHA-256: c59214a7d14a6802a9a2e930317411d19d2fa7dba1b51b0b4ac72c55b097ffe9 kernel-debug-modules-4.18.0-372.197.1.el8_6.x86_64.rpm SHA-256: fb21815c7ea70458c8a83284a9c3e8bbcb084059790aee6fcfd5f45e8a4a435b kernel-debug-modules-extra-4.18.0-372.197.1.el8_6.x86_64.rpm SHA-256: 86572636d50d23b1bb2c110f9b4d99f695c8b6f5dd10f8f26da5b9693a46ad6c kernel-debuginfo-4.18.0-372.197.1.el8_6.x86_64.rpm SHA-256: f656daf38a1f9a11541045a16eabb741680b1df4947150250c693a2e6f7e47f4 kernel-debuginfo-common-x86_64-4.18.0-372.197.1.el8_6.x86_64.rpm SHA-256: 831c5f3891ec79267242cedb8bf1e517885ad966713f466323ae4e01cc39406e kernel-devel-4.18.0-372.197.1.el8_6.x86_64.rpm SHA-256: f44a8626fff95f883de368d02a2014b92dca7d31d649de34fe6c92f9f5ea7f62 kernel-doc-4.18.0-372.197.1.el8_6.noarch.rpm SHA-256: b64015bfef875b15d29078eec0981f57c445a3135e555886c46ea23f02c1c385 kernel-headers-4.18.0-372.197.1.el8_6.x86_64.rpm SHA-256: 6f8f70a4de2553b356392c4362257da715781aa7267c6c2a0f446bae8429f2c4 kernel-modules-4.18.0-372.197.1.el8_6.x86_64.rpm SHA-256: a04f5b0caa85c5b86d3f8e19f5904d78002de597e4ce85ad061a27964f074ba5 kernel-modules-extra-4.18.0-372.197.1.el8_6.x86_64.rpm SHA-256: 052409bb09d685c083baaa8e317adcadad4e9e877e89cf5fba4e730e409e0407 kernel-tools-4.18.0-372.197.1.el8_6.x86_64.rpm SHA-256: 71b7d922318984e4f2d4af6bc11b6acf72b72c0d28103fe40ac748f6cba3f453 kernel-tools-debuginfo-4.18.0-372.197.1.el8_6.x86_64.rpm SHA-256: ad537bd65809b14a71055cc837c6dca6c08fbb198d689d437f36e59d59b049fb kernel-tools-libs-4.18.0-372.197.1.el8_6.x86_64.rpm SHA-256: 211f93d655698631ac36d678c17cbf0edcddcc48290aaabcabd75711ef088c0b perf-4.18.0-372.197.1.el8_6.x86_64.rpm SHA-256: b7c717e24b0b81f02fc0490c1a79276cafc93709251523525a11749e8ac48048 perf-debuginfo-4.18.0-372.197.1.el8_6.x86_64.rpm SHA-256: 7849d57afbd6e8a136a0a27506d37e84f0ba0ac522a141bf6a365ed1419983ed python3-perf-4.18.0-372.197.1.el8_6.x86_64.rpm SHA-256: 999d4ea106f6ea2fc86b4c20a0086a482313473d1f20bc1a58b8e283c232564f python3-perf-debuginfo-4.18.0-372.197.1.el8_6.x86_64.rpm SHA-256: 9aa67fdd65a7b931176fe8b5853d44f7bf502dc00e317c4363ccff33608a6f59 The Red Hat security contact is secalert@redhat.com . 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