[El-errata] ELSA-2026-50184 Important: Oracle Linux 9 Unbreakable Enterprise kernel security update

[Errata Announcements for Oracle Linux]

Oracle Linux Security Advisory ELSA-2026-50184

http://linux.oracle.com/errata/ELSA-2026-50184.html

The following updated rpms for Oracle Linux 9 have been uploaded to the Unbreakable Linux Network:

x86_64:
kernel-uek-6.12.0-200.74.27.2.el9uek.x86_64.rpm
kernel-uek-core-6.12.0-200.74.27.2.el9uek.x86_64.rpm
kernel-uek-debug-6.12.0-200.74.27.2.el9uek.x86_64.rpm
kernel-uek-debug-core-6.12.0-200.74.27.2.el9uek.x86_64.rpm
kernel-uek-debug-devel-6.12.0-200.74.27.2.el9uek.x86_64.rpm
kernel-uek-debug-modules-6.12.0-200.74.27.2.el9uek.x86_64.rpm
kernel-uek-debug-modules-core-6.12.0-200.74.27.2.el9uek.x86_64.rpm
kernel-uek-debug-modules-deprecated-6.12.0-200.74.27.2.el9uek.x86_64.rpm
kernel-uek-debug-modules-desktop-6.12.0-200.74.27.2.el9uek.x86_64.rpm
kernel-uek-debug-modules-extra-6.12.0-200.74.27.2.el9uek.x86_64.rpm
kernel-uek-debug-modules-extra-netfilter-6.12.0-200.74.27.2.el9uek.x86_64.rpm
kernel-uek-debug-modules-usb-6.12.0-200.74.27.2.el9uek.x86_64.rpm
kernel-uek-debug-modules-wireless-6.12.0-200.74.27.2.el9uek.x86_64.rpm
kernel-uek-devel-6.12.0-200.74.27.2.el9uek.x86_64.rpm
kernel-uek-doc-6.12.0-200.74.27.2.el9uek.noarch.rpm
kernel-uek-modules-6.12.0-200.74.27.2.el9uek.x86_64.rpm
kernel-uek-modules-core-6.12.0-200.74.27.2.el9uek.x86_64.rpm
kernel-uek-modules-deprecated-6.12.0-200.74.27.2.el9uek.x86_64.rpm
kernel-uek-modules-desktop-6.12.0-200.74.27.2.el9uek.x86_64.rpm
kernel-uek-modules-extra-6.12.0-200.74.27.2.el9uek.x86_64.rpm
kernel-uek-modules-extra-netfilter-6.12.0-200.74.27.2.el9uek.x86_64.rpm
kernel-uek-modules-usb-6.12.0-200.74.27.2.el9uek.x86_64.rpm
kernel-uek-modules-wireless-6.12.0-200.74.27.2.el9uek.x86_64.rpm
kernel-uek-tools-6.12.0-200.74.27.2.el9uek.x86_64.rpm

aarch64:
kernel-uek-6.12.0-200.74.27.2.el9uek.aarch64.rpm
kernel-uek-core-6.12.0-200.74.27.2.el9uek.aarch64.rpm
kernel-uek-debug-6.12.0-200.74.27.2.el9uek.aarch64.rpm
kernel-uek-debug-core-6.12.0-200.74.27.2.el9uek.aarch64.rpm
kernel-uek-debug-devel-6.12.0-200.74.27.2.el9uek.aarch64.rpm
kernel-uek-debug-modules-6.12.0-200.74.27.2.el9uek.aarch64.rpm
kernel-uek-debug-modules-core-6.12.0-200.74.27.2.el9uek.aarch64.rpm
kernel-uek-debug-modules-deprecated-6.12.0-200.74.27.2.el9uek.aarch64.rpm
kernel-uek-debug-modules-desktop-6.12.0-200.74.27.2.el9uek.aarch64.rpm
kernel-uek-debug-modules-extra-6.12.0-200.74.27.2.el9uek.aarch64.rpm
kernel-uek-debug-modules-extra-netfilter-6.12.0-200.74.27.2.el9uek.aarch64.rpm
kernel-uek-debug-modules-usb-6.12.0-200.74.27.2.el9uek.aarch64.rpm
kernel-uek-debug-modules-wireless-6.12.0-200.74.27.2.el9uek.aarch64.rpm
kernel-uek-devel-6.12.0-200.74.27.2.el9uek.aarch64.rpm
kernel-uek-doc-6.12.0-200.74.27.2.el9uek.noarch.rpm
kernel-uek-modules-6.12.0-200.74.27.2.el9uek.aarch64.rpm
kernel-uek-modules-extra-6.12.0-200.74.27.2.el9uek.aarch64.rpm
kernel-uek-modules-core-6.12.0-200.74.27.2.el9uek.aarch64.rpm
kernel-uek-modules-deprecated-6.12.0-200.74.27.2.el9uek.aarch64.rpm
kernel-uek-modules-desktop-6.12.0-200.74.27.2.el9uek.aarch64.rpm
kernel-uek-modules-extra-netfilter-6.12.0-200.74.27.2.el9uek.aarch64.rpm
kernel-uek-modules-usb-6.12.0-200.74.27.2.el9uek.aarch64.rpm
kernel-uek-modules-wireless-6.12.0-200.74.27.2.el9uek.aarch64.rpm
kernel-uek-tools-6.12.0-200.74.27.2.el9uek.aarch64.rpm
kernel-uek64k-6.12.0-200.74.27.2.el9uek.aarch64.rpm
kernel-uek64k-core-6.12.0-200.74.27.2.el9uek.aarch64.rpm
kernel-uek64k-devel-6.12.0-200.74.27.2.el9uek.aarch64.rpm
kernel-uek64k-modules-6.12.0-200.74.27.2.el9uek.aarch64.rpm
kernel-uek64k-modules-core-6.12.0-200.74.27.2.el9uek.aarch64.rpm
kernel-uek64k-modules-deprecated-6.12.0-200.74.27.2.el9uek.aarch64.rpm
kernel-uek64k-modules-desktop-6.12.0-200.74.27.2.el9uek.aarch64.rpm
kernel-uek64k-modules-extra-6.12.0-200.74.27.2.el9uek.aarch64.rpm
kernel-uek64k-modules-extra-netfilter-6.12.0-200.74.27.2.el9uek.aarch64.rpm
kernel-uek64k-modules-usb-6.12.0-200.74.27.2.el9uek.aarch64.rpm
kernel-uek64k-modules-wireless-6.12.0-200.74.27.2.el9uek.aarch64.rpm


SRPMS:
http://oss.oracle.com/ol9/SRPMS-updates/kernel-uek-6.12.0-200.74.27.2.el9uek.src.rpm

Related CVEs:

CVE-2025-40135
CVE-2026-23004
CVE-2026-23231




Description of changes:

[6.12.0-200.74.27.2]
- ipv6: use RCU in ip6_xmit() (Eric Dumazet)  [Orabug: 39186444]  {CVE-2025-40135}
- netfilter: nf_tables: fix use-after-free in nf_tables_addchain() (Inseo An)  [Orabug: 39181102]  {CVE-2026-23231}
- dst: fix races in rt6_uncached_list_del() and rt_del_uncached_list() (Eric Dumazet)  [Orabug: 39181101]  {CVE-2026-23004}