[El-errata] ELSA-2026-64808-0 Important: Oracle Linux 9 kernel security update

[Errata Announcements for Oracle Linux]

Oracle Linux Security Advisory ELSA-2026-64808-0

http://linux.oracle.com/errata/ELSA-2026-64808-0.html

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

x86_64:
kernel-5.14.0-687.45.1.el9_8.x86_64.rpm
kernel-abi-stablelists-5.14.0-687.45.1.el9_8.noarch.rpm
kernel-core-5.14.0-687.45.1.el9_8.x86_64.rpm
kernel-cross-headers-5.14.0-687.45.1.el9_8.x86_64.rpm
kernel-debug-5.14.0-687.45.1.el9_8.x86_64.rpm
kernel-debug-core-5.14.0-687.45.1.el9_8.x86_64.rpm
kernel-debug-devel-5.14.0-687.45.1.el9_8.x86_64.rpm
kernel-debug-devel-matched-5.14.0-687.45.1.el9_8.x86_64.rpm
kernel-debug-modules-5.14.0-687.45.1.el9_8.x86_64.rpm
kernel-debug-modules-core-5.14.0-687.45.1.el9_8.x86_64.rpm
kernel-debug-modules-extra-5.14.0-687.45.1.el9_8.x86_64.rpm
kernel-debug-uki-virt-5.14.0-687.45.1.el9_8.x86_64.rpm
kernel-devel-5.14.0-687.45.1.el9_8.x86_64.rpm
kernel-devel-matched-5.14.0-687.45.1.el9_8.x86_64.rpm
kernel-doc-5.14.0-687.45.1.el9_8.noarch.rpm
kernel-headers-5.14.0-687.45.1.el9_8.x86_64.rpm
kernel-modules-5.14.0-687.45.1.el9_8.x86_64.rpm
kernel-modules-core-5.14.0-687.45.1.el9_8.x86_64.rpm
kernel-modules-extra-5.14.0-687.45.1.el9_8.x86_64.rpm
kernel-tools-5.14.0-687.45.1.el9_8.x86_64.rpm
kernel-tools-libs-5.14.0-687.45.1.el9_8.x86_64.rpm
kernel-tools-libs-devel-5.14.0-687.45.1.el9_8.x86_64.rpm
kernel-uki-virt-5.14.0-687.45.1.el9_8.x86_64.rpm
kernel-uki-virt-addons-5.14.0-687.45.1.el9_8.x86_64.rpm
libperf-5.14.0-687.45.1.el9_8.x86_64.rpm
perf-5.14.0-687.45.1.el9_8.x86_64.rpm
python3-perf-5.14.0-687.45.1.el9_8.x86_64.rpm
rtla-5.14.0-687.45.1.el9_8.x86_64.rpm
rv-5.14.0-687.45.1.el9_8.x86_64.rpm

aarch64:
kernel-cross-headers-5.14.0-687.45.1.el9_8.aarch64.rpm
kernel-headers-5.14.0-687.45.1.el9_8.aarch64.rpm
kernel-tools-5.14.0-687.45.1.el9_8.aarch64.rpm
kernel-tools-libs-5.14.0-687.45.1.el9_8.aarch64.rpm
kernel-tools-libs-devel-5.14.0-687.45.1.el9_8.aarch64.rpm
libperf-5.14.0-687.45.1.el9_8.aarch64.rpm
perf-5.14.0-687.45.1.el9_8.aarch64.rpm
python3-perf-5.14.0-687.45.1.el9_8.aarch64.rpm
rtla-5.14.0-687.45.1.el9_8.aarch64.rpm
rv-5.14.0-687.45.1.el9_8.aarch64.rpm


SRPMS:
http://oss.oracle.com/ol9/SRPMS-updates/kernel-5.14.0-687.45.1.el9_8.src.rpm

Related CVEs:

CVE-2025-38004
CVE-2026-52933
CVE-2026-53000
CVE-2026-64136
CVE-2026-64287
CVE-2026-64319
CVE-2026-64320
CVE-2026-64384




Description of changes:

[5.14.0-687.45.1]
- Disable UKI signing [Orabug: 36571828]
- Update Oracle Linux certificates (Kevin Lyons)
- Disable signing for aarch64 (Ilya Okomin)
- Oracle Linux RHCK Module Signing Key was added to the kernel trusted keys list (olkmod_signing_key.pem) [Orabug: 29539237]
- Update x509.genkey [Orabug: 24817676]
- Conflict with shim-ia32 and shim-x64 <= 15.3-1.0.5]
- Remove upstream reference during boot (Kevin Lyons) [Orabug: 34729535]
- Add Oracle Linux IMA certificates
- Add new Oracle Linux Driver Signing (key 1) certificate [Orabug: 37985764]

[5.14.0-687.45.1]
- KVM: arm64: Bound used_lrs when flushing the pKVM hyp vCPU (Jon Maloy) [RHEL-234207] {CVE-2026-64287}
- nvmet-auth: validate reply message payload bounds against transfer length (CKI Backport Bot) [RHEL-234145] {CVE-2026-64319}
- smb: client: protect tc_count increment in smb2_find_smb_sess_tcon_unlocked() (CKI Backport Bot) [RHEL-228852] {CVE-2026-64136}
- io_uring/poll: fix signed comparison in io_poll_get_ownership() (CKI Backport Bot) [RHEL-227107] {CVE-2026-52933}
- smb: client: fix change notify replay double-free (CKI Backport Bot) [RHEL-226985] {CVE-2026-64384}
- nvmet: fix pre-auth out-of-bounds heap read in Discovery Get Log Page (CKI Backport Bot) [RHEL-219614] {CVE-2026-64320}
- can: bcm: extend bcm_tx_lock usage for data and timer updates (CKI Backport Bot) [RHEL-216699] {CVE-2025-38004}
- can: bcm: add locking when updating filter and timer values (CKI Backport Bot) [RHEL-216699] {CVE-2025-38004}
- can: bcm: fix locking for bcm_op runtime updates (CKI Backport Bot) [RHEL-216699] {CVE-2025-38004}
- can: bcm: add locking for bcm_op runtime updates (CKI Backport Bot) [RHEL-216699] {CVE-2025-38004}
- netfilter: nat: use kfree_rcu to release ops (Florian Westphal) [RHEL-188518] {CVE-2026-53000}