[El-errata] ELSA-2026-500329 Important: Oracle Linux 9 Unbreakable Enterprise kernel security update

[Errata Announcements for Oracle Linux]

Oracle Linux Security Advisory ELSA-2026-500329

http://linux.oracle.com/errata/ELSA-2026-500329.html

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

x86_64:
bpftool-5.15.0-324.217.5.3.el9uek.x86_64.rpm
kernel-uek-5.15.0-324.217.5.3.el9uek.x86_64.rpm
kernel-uek-core-5.15.0-324.217.5.3.el9uek.x86_64.rpm
kernel-uek-debug-5.15.0-324.217.5.3.el9uek.x86_64.rpm
kernel-uek-debug-core-5.15.0-324.217.5.3.el9uek.x86_64.rpm
kernel-uek-debug-devel-5.15.0-324.217.5.3.el9uek.x86_64.rpm
kernel-uek-debug-modules-5.15.0-324.217.5.3.el9uek.x86_64.rpm
kernel-uek-debug-modules-extra-5.15.0-324.217.5.3.el9uek.x86_64.rpm
kernel-uek-devel-5.15.0-324.217.5.3.el9uek.x86_64.rpm
kernel-uek-doc-5.15.0-324.217.5.3.el9uek.noarch.rpm
kernel-uek-modules-5.15.0-324.217.5.3.el9uek.x86_64.rpm
kernel-uek-modules-extra-5.15.0-324.217.5.3.el9uek.x86_64.rpm
kernel-uek-container-5.15.0-324.217.5.3.el9uek.x86_64.rpm
kernel-uek-container-debug-5.15.0-324.217.5.3.el9uek.x86_64.rpm



SRPMS:
http://oss.oracle.com/ol9/SRPMS-updates/kernel-uek-5.15.0-324.217.5.3.el9uek.src.rpm

Related CVEs:

CVE-2026-43088
CVE-2026-43198
CVE-2026-74268
CVE-2026-74378
CVE-2026-80844
CVE-2026-81000




Description of changes:

[5.15.0-324.217.5.3]
- net: tun: bound receive headroom (Asim Viladi Oglu Manizada)  [Orabug: 40035523]  {CVE-2026-81000}
- xfrm: ah6: validate routing header segments_left (Asim Viladi Oglu Manizada)  [Orabug: 40035522]  {CVE-2026-80844}
- tcp: clear sock_ops cb flags before force-closing a child socket (Sechang Lim)  [Orabug: 40035388]  {CVE-2026-74268}
- RDMA/rxe: Fix TOCTOU heap overflow in get_srq_wqe (Bjoern Doebel)  [Orabug: 40035390]  {CVE-2026-74378}
- tcp: fix potential race in tcp_v6_syn_recv_sock() (Eric Dumazet)  [Orabug: 40035386]  {CVE-2026-43198}
- net: af_key: zero aligned sockaddr tail in PF_KEY exports (Zhengchuan Liang)  [Orabug: 40035384]  {CVE-2026-43088}