[El-errata] ELSA-2026-57253 Important: Oracle Linux 8 kernel security, bug fix, and enhancement update

[Errata Announcements for Oracle Linux]

Oracle Linux Security Advisory ELSA-2026-57253

http://linux.oracle.com/errata/ELSA-2026-57253.html

The following updated rpms for Oracle Linux 8 have been uploaded to the Unbreakable Linux Network:

x86_64:
bpftool-4.18.0-553.157.1.el8_10.x86_64.rpm
kernel-4.18.0-553.157.1.el8_10.x86_64.rpm
kernel-abi-stablelists-4.18.0-553.157.1.el8_10.noarch.rpm
kernel-core-4.18.0-553.157.1.el8_10.x86_64.rpm
kernel-cross-headers-4.18.0-553.157.1.el8_10.x86_64.rpm
kernel-debug-4.18.0-553.157.1.el8_10.x86_64.rpm
kernel-debug-core-4.18.0-553.157.1.el8_10.x86_64.rpm
kernel-debug-devel-4.18.0-553.157.1.el8_10.x86_64.rpm
kernel-debug-modules-4.18.0-553.157.1.el8_10.x86_64.rpm
kernel-debug-modules-extra-4.18.0-553.157.1.el8_10.x86_64.rpm
kernel-devel-4.18.0-553.157.1.el8_10.x86_64.rpm
kernel-doc-4.18.0-553.157.1.el8_10.noarch.rpm
kernel-headers-4.18.0-553.157.1.el8_10.x86_64.rpm
kernel-modules-4.18.0-553.157.1.el8_10.x86_64.rpm
kernel-modules-extra-4.18.0-553.157.1.el8_10.x86_64.rpm
kernel-tools-4.18.0-553.157.1.el8_10.x86_64.rpm
kernel-tools-libs-4.18.0-553.157.1.el8_10.x86_64.rpm
kernel-tools-libs-devel-4.18.0-553.157.1.el8_10.x86_64.rpm
perf-4.18.0-553.157.1.el8_10.x86_64.rpm
python3-perf-4.18.0-553.157.1.el8_10.x86_64.rpm

aarch64:
bpftool-4.18.0-553.157.1.el8_10.aarch64.rpm
kernel-cross-headers-4.18.0-553.157.1.el8_10.aarch64.rpm
kernel-headers-4.18.0-553.157.1.el8_10.aarch64.rpm
kernel-tools-4.18.0-553.157.1.el8_10.aarch64.rpm
kernel-tools-libs-4.18.0-553.157.1.el8_10.aarch64.rpm
kernel-tools-libs-devel-4.18.0-553.157.1.el8_10.aarch64.rpm
perf-4.18.0-553.157.1.el8_10.aarch64.rpm
python3-perf-4.18.0-553.157.1.el8_10.aarch64.rpm


SRPMS:
http://oss.oracle.com/ol8/SRPMS-updates/kernel-4.18.0-553.157.1.el8_10.src.rpm

Related CVEs:

CVE-2024-56602
CVE-2026-46120
CVE-2026-52991
CVE-2026-53189
CVE-2026-63887
CVE-2026-63888
CVE-2026-64048
CVE-2026-64379
CVE-2026-68388




Description of changes:

[4.18.0-553.157.1]
- 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 <= 15.3-1.0.3
- Remove upstream reference during boot (Kevin Lyons) [Orabug: 34750652]
- Add new Oracle Linux Driver Signing (key 1) certificate [Orabug: 37985772]

[4.18.0-553.157.1]
- smb/client: handle overlapping allocated ranges in fallocate (CKI Backport Bot) [RHEL-236195] {CVE-2026-68388}
- mm, page_alloc: skip ->waternark_boost for atomic order-0 allocations (Jay Shin) [RHEL-219767]
- mm, page_alloc: reset the zone->watermark_boost early (Jay Shin) [RHEL-219767]
- scsi: target: iscsi: Fix CRC overread and double-free in iscsit_handle_text_cmd() (Maurizio Lombardi) [RHEL-213227] {CVE-2026-63888}
- net: ieee802154: do not leave a dangling sk pointer in ieee802154_create() (Abhishek Rawal) [RHEL-224189] {CVE-2024-56602}
- cgroup/psi: Set of->priv to NULL upon file release (Waiman Long) [RHEL-232546]
- sched/psi: Create the psimon kthread outside of cgroup_mutex (Waiman Long) [RHEL-232546]
- sched/psi: fix race between file release and pressure write (Waiman Long) [RHEL-232546] {CVE-2026-52991}
- sched/psi: Remove unused parameter nbytes of psi_trigger_create() (Waiman Long) [RHEL-232546]
- psi: fix "no previous prototype" warnings when CONFIG_CGROUPS=n (Waiman Long) [RHEL-232546]
- smb: client: mask server-provided mode to 07777 in modefromsid (CKI Backport Bot) [RHEL-234516] {CVE-2026-64379}
- mm/huge_memory: update file PMD counter before folio_put() (Luiz Capitulino) [RHEL-231209] {CVE-2026-53189}
- net/smc: reject CHID-0 ACCEPT that matches an empty ism_dev slot (CKI Backport Bot) [RHEL-230094] {CVE-2026-64048}
- scsi: target: iscsi: Bound iscsi_encode_text_output() appends to rsp_buf (CKI Backport Bot) [RHEL-213200] {CVE-2026-63887}
- ip6_gre: Use cached t->net in ip6erspan_changelink(). (CKI Backport Bot) [RHEL-180148] {CVE-2026-46120}