[El-errata] ELSA-2026-50305 Important: Oracle Linux 8 Unbreakable Enterprise kernel security update

[Errata Announcements for Oracle Linux]

Oracle Linux Security Advisory ELSA-2026-50305

http://linux.oracle.com/errata/ELSA-2026-50305.html

The following updated rpms for Oracle Linux 8 have been uploaded to the Unbreakable Linux Network:

x86_64:
bpftool-5.15.0-321.202.5.1.el8uek.x86_64.rpm
kernel-uek-5.15.0-321.202.5.1.el8uek.x86_64.rpm
kernel-uek-core-5.15.0-321.202.5.1.el8uek.x86_64.rpm
kernel-uek-debug-5.15.0-321.202.5.1.el8uek.x86_64.rpm
kernel-uek-debug-core-5.15.0-321.202.5.1.el8uek.x86_64.rpm
kernel-uek-debug-devel-5.15.0-321.202.5.1.el8uek.x86_64.rpm
kernel-uek-debug-modules-5.15.0-321.202.5.1.el8uek.x86_64.rpm
kernel-uek-debug-modules-extra-5.15.0-321.202.5.1.el8uek.x86_64.rpm
kernel-uek-devel-5.15.0-321.202.5.1.el8uek.x86_64.rpm
kernel-uek-doc-5.15.0-321.202.5.1.el8uek.noarch.rpm
kernel-uek-modules-5.15.0-321.202.5.1.el8uek.x86_64.rpm
kernel-uek-modules-extra-5.15.0-321.202.5.1.el8uek.x86_64.rpm
kernel-uek-container-5.15.0-321.202.5.1.el8uek.x86_64.rpm
kernel-uek-container-debug-5.15.0-321.202.5.1.el8uek.x86_64.rpm

aarch64:
bpftool-5.15.0-321.202.5.1.el8uek.aarch64.rpm
kernel-uek-5.15.0-321.202.5.1.el8uek.aarch64.rpm
kernel-uek-core-5.15.0-321.202.5.1.el8uek.aarch64.rpm
kernel-uek-debug-5.15.0-321.202.5.1.el8uek.aarch64.rpm
kernel-uek-debug-core-5.15.0-321.202.5.1.el8uek.aarch64.rpm
kernel-uek-debug-devel-5.15.0-321.202.5.1.el8uek.aarch64.rpm
kernel-uek-debug-modules-5.15.0-321.202.5.1.el8uek.aarch64.rpm
kernel-uek-debug-modules-extra-5.15.0-321.202.5.1.el8uek.aarch64.rpm
kernel-uek-devel-5.15.0-321.202.5.1.el8uek.aarch64.rpm
kernel-uek-doc-5.15.0-321.202.5.1.el8uek.noarch.rpm
kernel-uek-modules-5.15.0-321.202.5.1.el8uek.aarch64.rpm
kernel-uek-modules-extra-5.15.0-321.202.5.1.el8uek.aarch64.rpm
kernel-uek-container-5.15.0-321.202.5.1.el8uek.aarch64.rpm
kernel-uek-container-debug-5.15.0-321.202.5.1.el8uek.aarch64.rpm


SRPMS:
http://oss.oracle.com/ol8/SRPMS-updates/kernel-uek-5.15.0-321.202.5.1.el8uek.src.rpm

Related CVEs:

CVE-2025-10263




Description of changes:

[5.15.0-321.202.5.1]
- arm64: errata: Mitigate TLBI errata on various Arm CPUs (Mark Rutland)  [Orabug: 39017590]  {CVE-2025-10263}
- arm64: tlb: Add ARM64_WORKAROUND_REPEAT_TLBI_SYNC (Mark Rutland)  [Orabug: 39017590]
- ARM: uek: Disable CONFIG_NVIDIA_CARMEL_CNP_ERRATUM (Boris Ostrovsky)  [Orabug: 39017590]
- arm64: tlb: allow XZR argument to TLBI ops (Mark Rutland)  [Orabug: 39017590]
- arm64: cputype: Add C1-Premium definitions (Mark Rutland)  [Orabug: 39017590]
- arm64: cputype: Add C1-Ultra definitions (Mark Rutland)  [Orabug: 39017590]