Red Hat Product Errata RHSA-2026:16203 - Security Advisory Issued: 2026-05-12 Updated: 2026-05-12 RHSA-2026:16203 - Security Advisory Overview Updated Packages Synopsis Important: kernel-rt 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-rt is now available for Red Hat Enterprise Linux 9.0 Update Services for SAP Solutions. 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-rt packages provide the Real Time Linux Kernel, which enables fine-tuning for systems with extremely high determinism requirements. Security Fix(es): kernel: "Dirty Frag" is a new universal Local Privilege Escalation (LPE) vulnerability in the Linux kernel (CVE-2026-43284) 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 - Update Services for SAP Solutions 9.0 x86_64 Fixes BZ - 2467771 - CVE-2026-43284 kernel: "Dirty Frag" ESP XFRM variant is a new universal Local Privilege Escalation (LPE) vulnerability in the Linux kernel CVEs CVE-2026-43284 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 - Update Services for SAP Solutions 9.0 SRPM kernel-rt-5.14.0-70.179.1.rt21.251.el9_0.src.rpm SHA-256: 77392dd648d842d85fe0e330cd85c84f3428aba119948a625648f280c29e59d9 x86_64 kernel-rt-5.14.0-70.179.1.rt21.251.el9_0.x86_64.rpm SHA-256: a08cfe657a77d5fdc473b078d5e0ee35814920ba9713a91514108565b37a839b kernel-rt-5.14.0-70.179.1.rt21.251.el9_0.x86_64.rpm SHA-256: a08cfe657a77d5fdc473b078d5e0ee35814920ba9713a91514108565b37a839b kernel-rt-core-5.14.0-70.179.1.rt21.251.el9_0.x86_64.rpm SHA-256: 785d708f8a279d3e67448f3533066901132ae4b84fb74b7a98aeaac27f534a41 kernel-rt-core-5.14.0-70.179.1.rt21.251.el9_0.x86_64.rpm SHA-256: 785d708f8a279d3e67448f3533066901132ae4b84fb74b7a98aeaac27f534a41 kernel-rt-debug-5.14.0-70.179.1.rt21.251.el9_0.x86_64.rpm SHA-256: 9bb61d3fe62ef736c476828df3b352c67c050b1fcecc63f08fce8b2e95e17d50 kernel-rt-debug-5.14.0-70.179.1.rt21.251.el9_0.x86_64.rpm SHA-256: 9bb61d3fe62ef736c476828df3b352c67c050b1fcecc63f08fce8b2e95e17d50 kernel-rt-debug-core-5.14.0-70.179.1.rt21.251.el9_0.x86_64.rpm SHA-256: ff6eb467c4b4cfc006739f99d99b59c699e531222a70a4e462eb7c085cd66cd9 kernel-rt-debug-core-5.14.0-70.179.1.rt21.251.el9_0.x86_64.rpm SHA-256: ff6eb467c4b4cfc006739f99d99b59c699e531222a70a4e462eb7c085cd66cd9 kernel-rt-debug-debuginfo-5.14.0-70.179.1.rt21.251.el9_0.x86_64.rpm SHA-256: 3c4fa7ebc5b6ff3ec185894d7009768c6ed465b15e6807222a483b8d64939d59 kernel-rt-debug-debuginfo-5.14.0-70.179.1.rt21.251.el9_0.x86_64.rpm SHA-256: 3c4fa7ebc5b6ff3ec185894d7009768c6ed465b15e6807222a483b8d64939d59 kernel-rt-debug-devel-5.14.0-70.179.1.rt21.251.el9_0.x86_64.rpm SHA-256: 169663abe8e64e4e4264552b80f793189611681152300499c9281e433bbd1e02 kernel-rt-debug-devel-5.14.0-70.179.1.rt21.251.el9_0.x86_64.rpm SHA-256: 169663abe8e64e4e4264552b80f793189611681152300499c9281e433bbd1e02 kernel-rt-debug-kvm-5.14.0-70.179.1.rt21.251.el9_0.x86_64.rpm SHA-256: 741636c07d741b23396206b3a04a433c7b0883d505645e83d1a7f07da1b7f5e3 kernel-rt-debug-modules-5.14.0-70.179.1.rt21.251.el9_0.x86_64.rpm SHA-256: 8ec6d314da2268f68a947f598893a7955b2fc8cb3484e9f5a65a006255e902a7 kernel-rt-debug-modules-5.14.0-70.179.1.rt21.251.el9_0.x86_64.rpm SHA-256: 8ec6d314da2268f68a947f598893a7955b2fc8cb3484e9f5a65a006255e902a7 kernel-rt-debug-modules-extra-5.14.0-70.179.1.rt21.251.el9_0.x86_64.rpm SHA-256: 4f5644d6bf7966056076fe9d48aaccb3bc2369df8964bc4b7ef3b9e104387827 kernel-rt-debug-modules-extra-5.14.0-70.179.1.rt21.251.el9_0.x86_64.rpm SHA-256: 4f5644d6bf7966056076fe9d48aaccb3bc2369df8964bc4b7ef3b9e104387827 kernel-rt-debuginfo-5.14.0-70.179.1.rt21.251.el9_0.x86_64.rpm SHA-256: f920fea03c6a2831a932881cded8bcddf22e81de68e93e5376a9ce65bec20b24 kernel-rt-debuginfo-5.14.0-70.179.1.rt21.251.el9_0.x86_64.rpm SHA-256: f920fea03c6a2831a932881cded8bcddf22e81de68e93e5376a9ce65bec20b24 kernel-rt-debuginfo-common-x86_64-5.14.0-70.179.1.rt21.251.el9_0.x86_64.rpm SHA-256: 9634171005454bbbda8b4c6aae6fff75b1c206bc33d34df68bdf09b2d11ae34a kernel-rt-debuginfo-common-x86_64-5.14.0-70.179.1.rt21.251.el9_0.x86_64.rpm SHA-256: 9634171005454bbbda8b4c6aae6fff75b1c206bc33d34df68bdf09b2d11ae34a kernel-rt-devel-5.14.0-70.179.1.rt21.251.el9_0.x86_64.rpm SHA-256: 946af374e27f0f25fc97d9914761ff28b54841ccbd472a391c234ae19e68f274 kernel-rt-devel-5.14.0-70.179.1.rt21.251.el9_0.x86_64.rpm SHA-256: 946af374e27f0f25fc97d9914761ff28b54841ccbd472a391c234ae19e68f274 kernel-rt-kvm-5.14.0-70.179.1.rt21.251.el9_0.x86_64.rpm SHA-256: 5957c20c4cb1d0014b968420203c3785554b04ba45d8048024232f1dea566d66 kernel-rt-modules-5.14.0-70.179.1.rt21.251.el9_0.x86_64.rpm SHA-256: 87927bad77cbc3f4a4e30be8dfe33ef2cff6204cf670140f31c85359b66c8d76 kernel-rt-modules-5.14.0-70.179.1.rt21.251.el9_0.x86_64.rpm SHA-256: 87927bad77cbc3f4a4e30be8dfe33ef2cff6204cf670140f31c85359b66c8d76 kernel-rt-modules-extra-5.14.0-70.179.1.rt21.251.el9_0.x86_64.rpm SHA-256: 1ddbabcc900f93ebd595a2e468fe4992119930f8d4b9888728cf6c1bdb07ff75 kernel-rt-modules-extra-5.14.0-70.179.1.rt21.251.el9_0.x86_64.rpm SHA-256: 1ddbabcc900f93ebd595a2e468fe4992119930f8d4b9888728cf6c1bdb07ff75 The Red Hat security contact is secalert@redhat.com . More contact details at https://access.redhat.com/security/team/contact/ .