[El-errata] ELSA-2026-72623 Important: Oracle Linux 9 kernel security, bug fix, and enhancement update

[Errata Announcements for Oracle Linux]

Oracle Linux Security Advisory ELSA-2026-72623

http://linux.oracle.com/errata/ELSA-2026-72623.html

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

x86_64:
kernel-5.14.0-687.53.1.el9_8.x86_64.rpm
kernel-abi-stablelists-5.14.0-687.53.1.el9_8.noarch.rpm
kernel-core-5.14.0-687.53.1.el9_8.x86_64.rpm
kernel-cross-headers-5.14.0-687.53.1.el9_8.x86_64.rpm
kernel-debug-5.14.0-687.53.1.el9_8.x86_64.rpm
kernel-debug-core-5.14.0-687.53.1.el9_8.x86_64.rpm
kernel-debug-devel-5.14.0-687.53.1.el9_8.x86_64.rpm
kernel-debug-devel-matched-5.14.0-687.53.1.el9_8.x86_64.rpm
kernel-debug-modules-5.14.0-687.53.1.el9_8.x86_64.rpm
kernel-debug-modules-core-5.14.0-687.53.1.el9_8.x86_64.rpm
kernel-debug-modules-extra-5.14.0-687.53.1.el9_8.x86_64.rpm
kernel-debug-uki-virt-5.14.0-687.53.1.el9_8.x86_64.rpm
kernel-devel-5.14.0-687.53.1.el9_8.x86_64.rpm
kernel-devel-matched-5.14.0-687.53.1.el9_8.x86_64.rpm
kernel-doc-5.14.0-687.53.1.el9_8.noarch.rpm
kernel-headers-5.14.0-687.53.1.el9_8.x86_64.rpm
kernel-modules-5.14.0-687.53.1.el9_8.x86_64.rpm
kernel-modules-core-5.14.0-687.53.1.el9_8.x86_64.rpm
kernel-modules-extra-5.14.0-687.53.1.el9_8.x86_64.rpm
kernel-tools-5.14.0-687.53.1.el9_8.x86_64.rpm
kernel-tools-libs-5.14.0-687.53.1.el9_8.x86_64.rpm
kernel-tools-libs-devel-5.14.0-687.53.1.el9_8.x86_64.rpm
kernel-uki-virt-5.14.0-687.53.1.el9_8.x86_64.rpm
kernel-uki-virt-addons-5.14.0-687.53.1.el9_8.x86_64.rpm
libperf-5.14.0-687.53.1.el9_8.x86_64.rpm
perf-5.14.0-687.53.1.el9_8.x86_64.rpm
python3-perf-5.14.0-687.53.1.el9_8.x86_64.rpm
rtla-5.14.0-687.53.1.el9_8.x86_64.rpm
rv-5.14.0-687.53.1.el9_8.x86_64.rpm

aarch64:
kernel-cross-headers-5.14.0-687.53.1.el9_8.aarch64.rpm
kernel-headers-5.14.0-687.53.1.el9_8.aarch64.rpm
kernel-tools-5.14.0-687.53.1.el9_8.aarch64.rpm
kernel-tools-libs-5.14.0-687.53.1.el9_8.aarch64.rpm
kernel-tools-libs-devel-5.14.0-687.53.1.el9_8.aarch64.rpm
libperf-5.14.0-687.53.1.el9_8.aarch64.rpm
perf-5.14.0-687.53.1.el9_8.aarch64.rpm
python3-perf-5.14.0-687.53.1.el9_8.aarch64.rpm
rtla-5.14.0-687.53.1.el9_8.aarch64.rpm
rv-5.14.0-687.53.1.el9_8.aarch64.rpm


SRPMS:
http://oss.oracle.com/ol9/SRPMS-updates/kernel-5.14.0-687.53.1.el9_8.src.rpm

Related CVEs:

CVE-2026-45942
CVE-2026-46325
CVE-2026-52972
CVE-2026-53341
CVE-2026-63875
CVE-2026-64102
CVE-2026-64556
CVE-2026-74753
CVE-2026-80522




Description of changes:

[5.14.0-687.53.1]
- 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]

[5.14.0-687.53.1]
- arm64: tlb: Flush walk cache when unsharing PMD tables (Rafael Aquini) [RHEL-259312] {CVE-2026-63875}
- perf: Reject exited events as group leaders (Anubhav Shelat) [RHEL-258817] {CVE-2026-74753}
- perf/core: Detach event groups during remove_on_exec (Anubhav Shelat) [RHEL-250504] {CVE-2026-64556}
- ext4: fix e4b bitmap inconsistency reports (Lukas Herbolt) [RHEL-225944] {CVE-2026-45942}
- crypto: af_alg - Cap AEAD AD length to 0x80000000 (CKI Backport Bot) [RHEL-259061] {CVE-2026-52972}
- fhandle: fix UAF due to unlocked ->mnt_ns read in may_decode_fh() (Abhi Das) [RHEL-231391] {CVE-2026-53341}
- crypto: testmgr - block Crypto API xxhash64 in FIPS mode (Vladislav Dronov) [RHEL-256437]
- crypto: tegra - fix rctx->cryptlen calculation in tegra_gcm_do_one_req() (CKI Backport Bot) [RHEL-254308] {CVE-2026-80522}
- RDMA/rxe: Fix iova-to-va conversion for MR page sizes != PAGE_SIZE (Kamal Heib) [RHEL-230788] {CVE-2026-46325}
- RDMA/rxe: Remove unused page_offset member (Kamal Heib) [RHEL-230788]
- RDMA/rxe: Remove redundant assignment to variable page_offset (Kamal Heib) [RHEL-230788]
- Revert "RDMA/rxe: RHEL-only revert for page size vars in rxe" (Kamal Heib) [RHEL-230788]
- KVM: s390: selftests: Add IRQ routing address offset tests (Christoph Schlameuss) [RHEL-188656]
- KVM: s390: Limit adapter indicator access to mapped page (Christoph Schlameuss) [RHEL-188656]
- RDMA/siw: Reject MPA FPDU length underflow before signed receive math (CKI Backport Bot) [RHEL-232566] {CVE-2026-64102}
- rxrpc: Fix rxrpc_input_call_event() to only unshare DATA packets (Marc Dionne) [RHEL-179563]
- rxrpc: Fix potential UAF after skb_unshare() failure (Marc Dionne) [RHEL-179563] {CVE-2026-45998}