[El-errata] ELSA-2026-47040 Important: Oracle Linux 9 kernel security, bug fix, and enhancement update

[Errata Announcements for Oracle Linux]

Oracle Linux Security Advisory ELSA-2026-47040

http://linux.oracle.com/errata/ELSA-2026-47040.html

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

x86_64:
kernel-5.14.0-687.31.1.el9_8.x86_64.rpm
kernel-abi-stablelists-5.14.0-687.31.1.el9_8.noarch.rpm
kernel-core-5.14.0-687.31.1.el9_8.x86_64.rpm
kernel-cross-headers-5.14.0-687.31.1.el9_8.x86_64.rpm
kernel-debug-5.14.0-687.31.1.el9_8.x86_64.rpm
kernel-debug-core-5.14.0-687.31.1.el9_8.x86_64.rpm
kernel-debug-devel-5.14.0-687.31.1.el9_8.x86_64.rpm
kernel-debug-devel-matched-5.14.0-687.31.1.el9_8.x86_64.rpm
kernel-debug-modules-5.14.0-687.31.1.el9_8.x86_64.rpm
kernel-debug-modules-core-5.14.0-687.31.1.el9_8.x86_64.rpm
kernel-debug-modules-extra-5.14.0-687.31.1.el9_8.x86_64.rpm
kernel-debug-uki-virt-5.14.0-687.31.1.el9_8.x86_64.rpm
kernel-devel-5.14.0-687.31.1.el9_8.x86_64.rpm
kernel-devel-matched-5.14.0-687.31.1.el9_8.x86_64.rpm
kernel-doc-5.14.0-687.31.1.el9_8.noarch.rpm
kernel-headers-5.14.0-687.31.1.el9_8.x86_64.rpm
kernel-modules-5.14.0-687.31.1.el9_8.x86_64.rpm
kernel-modules-core-5.14.0-687.31.1.el9_8.x86_64.rpm
kernel-modules-extra-5.14.0-687.31.1.el9_8.x86_64.rpm
kernel-tools-5.14.0-687.31.1.el9_8.x86_64.rpm
kernel-tools-libs-5.14.0-687.31.1.el9_8.x86_64.rpm
kernel-tools-libs-devel-5.14.0-687.31.1.el9_8.x86_64.rpm
kernel-uki-virt-5.14.0-687.31.1.el9_8.x86_64.rpm
kernel-uki-virt-addons-5.14.0-687.31.1.el9_8.x86_64.rpm
libperf-5.14.0-687.31.1.el9_8.x86_64.rpm
perf-5.14.0-687.31.1.el9_8.x86_64.rpm
python3-perf-5.14.0-687.31.1.el9_8.x86_64.rpm
rtla-5.14.0-687.31.1.el9_8.x86_64.rpm
rv-5.14.0-687.31.1.el9_8.x86_64.rpm

aarch64:
kernel-cross-headers-5.14.0-687.31.1.el9_8.aarch64.rpm
kernel-headers-5.14.0-687.31.1.el9_8.aarch64.rpm
kernel-tools-5.14.0-687.31.1.el9_8.aarch64.rpm
kernel-tools-libs-5.14.0-687.31.1.el9_8.aarch64.rpm
kernel-tools-libs-devel-5.14.0-687.31.1.el9_8.aarch64.rpm
libperf-5.14.0-687.31.1.el9_8.aarch64.rpm
perf-5.14.0-687.31.1.el9_8.aarch64.rpm
python3-perf-5.14.0-687.31.1.el9_8.aarch64.rpm
rtla-5.14.0-687.31.1.el9_8.aarch64.rpm
rv-5.14.0-687.31.1.el9_8.aarch64.rpm


SRPMS:
http://oss.oracle.com/ol9/SRPMS-updates/kernel-5.14.0-687.31.1.el9_8.src.rpm

Related CVEs:

CVE-2025-39797
CVE-2026-23002
CVE-2026-52973
CVE-2026-53281
CVE-2026-64017




Description of changes:

[5.14.0-687.31.1]
- 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]

[5.14.0-687.31.1]
- blk-mq: reinsert cached request to the list (CKI Backport Bot) [RHEL-213163] {CVE-2026-64017}
- blk-mq: pop cached request if it is usable (CKI Backport Bot) [RHEL-213163] {CVE-2026-64017}
- futex: Drop CLONE_THREAD requirement for private default hash alloc (Audra Mitchell) [RHEL-193517] {CVE-2026-52973}
- watchdog: Fix NULL pointer dereference when releasing cdev (Krzysztof Pawlinski) [RHEL-193729]
- redhat/configs: enable watchdog pretimout panic functionality for x86 (Krzysztof Pawlinski) [RHEL-193729]
- watchdog: wdat_wdt: Fix ACPI table leak in probe function (Krzysztof Pawlinski) [RHEL-193729]
- watchdog: Switch to use hrtimer_setup() (Krzysztof Pawlinski) [RHEL-193729]
- watchdog: iTCO_wdt: Convert comma to semicolon (Krzysztof Pawlinski) [RHEL-193729]
- watchdog: wdat_wdt: Add timeout value as a param in ping method (Krzysztof Pawlinski) [RHEL-193729]
- watchdog: iTCO_wdt: Report firmware_version (Krzysztof Pawlinski) [RHEL-193729]
- watchdog: iTCO_wdt: Set NO_REBOOT if the watchdog is not already running (Krzysztof Pawlinski) [RHEL-193729]
- watchdog: iTCO_wdt: Using existing macro define covers more scenarios (Krzysztof Pawlinski) [RHEL-193729]
- watchdog: iTCO_wdt: No need to stop the timer in probe (Krzysztof Pawlinski) [RHEL-193729]
- watchdog: only run driver set_pretimeout op if device supports it (Krzysztof Pawlinski) [RHEL-193729]
- watchdog: iTCO_wdt: Make use of the helper function devm_platform_ioremap_resource() (Krzysztof Pawlinski) [RHEL-193729]
- xfrm: xfrm_alloc_spi shouldn't use 0 as SPI (Sabrina Dubroca) [RHEL-180033] {CVE-2025-39797}
- xfrm: Duplicate SPI Handling (Sabrina Dubroca) [RHEL-180033] {CVE-2025-39797}
- iommu/vt-d: Avoid NULL pointer dereference or refcount corruption (Eder Zulian) [RHEL-190342] {CVE-2026-53281}
- iommu/vt-d: Fix oops due to out of scope access (Eder Zulian) [RHEL-190342]
- lib/buildid: use __kernel_read() for sleepable context (CKI Backport Bot) [RHEL-189962] {CVE-2026-23002}
- nfsd: use correct loop termination in nfsd4_revoke_states() (CKI Backport Bot) [RHEL-188257]
- nfsd: check that server is running in unlock_filesystem (CKI Backport Bot) [RHEL-188257]