[El-errata] ELSA-2026-50259 Important: Oracle Linux 9 Unbreakable Enterprise kernel security update: Dirty Frag

[Errata Announcements for Oracle Linux]

Oracle Linux Security Advisory ELSA-2026-50259

http://linux.oracle.com/errata/ELSA-2026-50259.html

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

x86_64:
kernel-uek-6.12.0-201.74.2.3.el9uek.x86_64.rpm
kernel-uek-core-6.12.0-201.74.2.3.el9uek.x86_64.rpm
kernel-uek-debug-6.12.0-201.74.2.3.el9uek.x86_64.rpm
kernel-uek-debug-core-6.12.0-201.74.2.3.el9uek.x86_64.rpm
kernel-uek-debug-devel-6.12.0-201.74.2.3.el9uek.x86_64.rpm
kernel-uek-debug-modules-6.12.0-201.74.2.3.el9uek.x86_64.rpm
kernel-uek-debug-modules-core-6.12.0-201.74.2.3.el9uek.x86_64.rpm
kernel-uek-debug-modules-deprecated-6.12.0-201.74.2.3.el9uek.x86_64.rpm
kernel-uek-debug-modules-desktop-6.12.0-201.74.2.3.el9uek.x86_64.rpm
kernel-uek-debug-modules-extra-6.12.0-201.74.2.3.el9uek.x86_64.rpm
kernel-uek-debug-modules-extra-netfilter-6.12.0-201.74.2.3.el9uek.x86_64.rpm
kernel-uek-debug-modules-usb-6.12.0-201.74.2.3.el9uek.x86_64.rpm
kernel-uek-debug-modules-wireless-6.12.0-201.74.2.3.el9uek.x86_64.rpm
kernel-uek-devel-6.12.0-201.74.2.3.el9uek.x86_64.rpm
kernel-uek-doc-6.12.0-201.74.2.3.el9uek.noarch.rpm
kernel-uek-modules-6.12.0-201.74.2.3.el9uek.x86_64.rpm
kernel-uek-modules-core-6.12.0-201.74.2.3.el9uek.x86_64.rpm
kernel-uek-modules-deprecated-6.12.0-201.74.2.3.el9uek.x86_64.rpm
kernel-uek-modules-desktop-6.12.0-201.74.2.3.el9uek.x86_64.rpm
kernel-uek-modules-extra-6.12.0-201.74.2.3.el9uek.x86_64.rpm
kernel-uek-modules-extra-netfilter-6.12.0-201.74.2.3.el9uek.x86_64.rpm
kernel-uek-modules-usb-6.12.0-201.74.2.3.el9uek.x86_64.rpm
kernel-uek-modules-wireless-6.12.0-201.74.2.3.el9uek.x86_64.rpm
kernel-uek-tools-6.12.0-201.74.2.3.el9uek.x86_64.rpm

aarch64:
kernel-uek-6.12.0-201.74.2.3.el9uek.aarch64.rpm
kernel-uek-core-6.12.0-201.74.2.3.el9uek.aarch64.rpm
kernel-uek-debug-6.12.0-201.74.2.3.el9uek.aarch64.rpm
kernel-uek-debug-core-6.12.0-201.74.2.3.el9uek.aarch64.rpm
kernel-uek-debug-devel-6.12.0-201.74.2.3.el9uek.aarch64.rpm
kernel-uek-debug-modules-6.12.0-201.74.2.3.el9uek.aarch64.rpm
kernel-uek-debug-modules-core-6.12.0-201.74.2.3.el9uek.aarch64.rpm
kernel-uek-debug-modules-deprecated-6.12.0-201.74.2.3.el9uek.aarch64.rpm
kernel-uek-debug-modules-desktop-6.12.0-201.74.2.3.el9uek.aarch64.rpm
kernel-uek-debug-modules-extra-6.12.0-201.74.2.3.el9uek.aarch64.rpm
kernel-uek-debug-modules-extra-netfilter-6.12.0-201.74.2.3.el9uek.aarch64.rpm
kernel-uek-debug-modules-usb-6.12.0-201.74.2.3.el9uek.aarch64.rpm
kernel-uek-debug-modules-wireless-6.12.0-201.74.2.3.el9uek.aarch64.rpm
kernel-uek-devel-6.12.0-201.74.2.3.el9uek.aarch64.rpm
kernel-uek-doc-6.12.0-201.74.2.3.el9uek.noarch.rpm
kernel-uek-modules-6.12.0-201.74.2.3.el9uek.aarch64.rpm
kernel-uek-modules-extra-6.12.0-201.74.2.3.el9uek.aarch64.rpm
kernel-uek-modules-core-6.12.0-201.74.2.3.el9uek.aarch64.rpm
kernel-uek-modules-deprecated-6.12.0-201.74.2.3.el9uek.aarch64.rpm
kernel-uek-modules-desktop-6.12.0-201.74.2.3.el9uek.aarch64.rpm
kernel-uek-modules-extra-netfilter-6.12.0-201.74.2.3.el9uek.aarch64.rpm
kernel-uek-modules-usb-6.12.0-201.74.2.3.el9uek.aarch64.rpm
kernel-uek-modules-wireless-6.12.0-201.74.2.3.el9uek.aarch64.rpm
kernel-uek-tools-6.12.0-201.74.2.3.el9uek.aarch64.rpm
kernel-uek64k-6.12.0-201.74.2.3.el9uek.aarch64.rpm
kernel-uek64k-core-6.12.0-201.74.2.3.el9uek.aarch64.rpm
kernel-uek64k-devel-6.12.0-201.74.2.3.el9uek.aarch64.rpm
kernel-uek64k-modules-6.12.0-201.74.2.3.el9uek.aarch64.rpm
kernel-uek64k-modules-core-6.12.0-201.74.2.3.el9uek.aarch64.rpm
kernel-uek64k-modules-deprecated-6.12.0-201.74.2.3.el9uek.aarch64.rpm
kernel-uek64k-modules-desktop-6.12.0-201.74.2.3.el9uek.aarch64.rpm
kernel-uek64k-modules-extra-6.12.0-201.74.2.3.el9uek.aarch64.rpm
kernel-uek64k-modules-extra-netfilter-6.12.0-201.74.2.3.el9uek.aarch64.rpm
kernel-uek64k-modules-usb-6.12.0-201.74.2.3.el9uek.aarch64.rpm
kernel-uek64k-modules-wireless-6.12.0-201.74.2.3.el9uek.aarch64.rpm


SRPMS:
http://oss.oracle.com/ol9/SRPMS-updates/kernel-uek-6.12.0-201.74.2.3.el9uek.src.rpm

Related CVEs:

CVE-2026-43284
CVE-2026-43500




Description of changes:

[6.12.0-201.74.2.3]
- rxrpc: Also unshare DATA/RESPONSE packets when paged frags are present (Hyunwoo Kim)  [Orabug: 39342689]  {CVE-2026-43500}
- rxrpc: Fix conn-level packet handling to unshare RESPONSE packets (David Howells)  [Orabug: 39342689]
- rxrpc: only handle RESPONSE during service challenge (Wang Jie)  [Orabug: 39342689]
- rxrpc: Fix rxrpc_input_call_event() to only unshare DATA packets (David Howells)  [Orabug: 39342689]
- rxrpc: Fix potential UAF after skb_unshare() failure (David Howells)  [Orabug: 39342689]
- rxrpc: Fix re-decryption of RESPONSE packets (David Howells)  [Orabug: 39342689]
- xfrm: esp: avoid in-place decrypt on shared skb frags (Kuan-Ting Chen)  [Orabug: 39342689]  {CVE-2026-43284}