[El-errata] ELSA-2026-27353 Important: Oracle Linux 8 kernel security, bug fix, and enhancement update

[Errata Announcements for Oracle Linux]

Oracle Linux Security Advisory ELSA-2026-27353

http://linux.oracle.com/errata/ELSA-2026-27353.html

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

x86_64:
bpftool-4.18.0-553.136.1.el8_10.x86_64.rpm
kernel-4.18.0-553.136.1.el8_10.x86_64.rpm
kernel-abi-stablelists-4.18.0-553.136.1.el8_10.noarch.rpm
kernel-core-4.18.0-553.136.1.el8_10.x86_64.rpm
kernel-cross-headers-4.18.0-553.136.1.el8_10.x86_64.rpm
kernel-debug-4.18.0-553.136.1.el8_10.x86_64.rpm
kernel-debug-core-4.18.0-553.136.1.el8_10.x86_64.rpm
kernel-debug-devel-4.18.0-553.136.1.el8_10.x86_64.rpm
kernel-debug-modules-4.18.0-553.136.1.el8_10.x86_64.rpm
kernel-debug-modules-extra-4.18.0-553.136.1.el8_10.x86_64.rpm
kernel-devel-4.18.0-553.136.1.el8_10.x86_64.rpm
kernel-doc-4.18.0-553.136.1.el8_10.noarch.rpm
kernel-headers-4.18.0-553.136.1.el8_10.x86_64.rpm
kernel-modules-4.18.0-553.136.1.el8_10.x86_64.rpm
kernel-modules-extra-4.18.0-553.136.1.el8_10.x86_64.rpm
kernel-tools-4.18.0-553.136.1.el8_10.x86_64.rpm
kernel-tools-libs-4.18.0-553.136.1.el8_10.x86_64.rpm
kernel-tools-libs-devel-4.18.0-553.136.1.el8_10.x86_64.rpm
perf-4.18.0-553.136.1.el8_10.x86_64.rpm
python3-perf-4.18.0-553.136.1.el8_10.x86_64.rpm

aarch64:
bpftool-4.18.0-553.136.1.el8_10.aarch64.rpm
kernel-cross-headers-4.18.0-553.136.1.el8_10.aarch64.rpm
kernel-headers-4.18.0-553.136.1.el8_10.aarch64.rpm
kernel-tools-4.18.0-553.136.1.el8_10.aarch64.rpm
kernel-tools-libs-4.18.0-553.136.1.el8_10.aarch64.rpm
kernel-tools-libs-devel-4.18.0-553.136.1.el8_10.aarch64.rpm
perf-4.18.0-553.136.1.el8_10.aarch64.rpm
python3-perf-4.18.0-553.136.1.el8_10.aarch64.rpm


SRPMS:
http://oss.oracle.com/ol8/SRPMS-updates/kernel-4.18.0-553.136.1.el8_10.src.rpm

Related CVEs:

CVE-2026-31419
CVE-2026-31488
CVE-2026-43056
CVE-2026-43279
CVE-2026-46090
CVE-2026-46135
CVE-2026-46145
CVE-2026-46331




Description of changes:

[4.18.0-553.136.1]
- 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]
- 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]

[4.18.0-553.136.1]
- net/sched: fix pedit partial COW leading to page cache corruption (Ivan Vecera) [RHEL-177582] {CVE-2026-46331}
- net/sched: act_pedit: free pedit keys on bail from offset check (Ivan Vecera) [RHEL-177582] {CVE-2026-46331}
- net/sched: act_pedit: rate limit datapath messages (Ivan Vecera) [RHEL-177582] {CVE-2026-46331}
- net/sched: act_pedit: remove extra check for key type (Ivan Vecera) [RHEL-177582] {CVE-2026-46331}
- net/sched: act_pedit: check static offsets a priori (Ivan Vecera) [RHEL-177582] {CVE-2026-46331}
- nvmet-tcp: fix race between ICReq handling and queue teardown (Chris Leech) [RHEL-180103] {CVE-2026-46135}
- net: mana: fix use-after-free in add_adev() error path (CKI Backport Bot) [RHEL-172764] {CVE-2026-43056}

[4.18.0-553.135.1]
- drm/amd/display: Do not skip unrelated mode changes in DSC validation (José Expósito) [RHEL-178825] {CVE-2026-31488}
- sched/deadline: Fix missing ENQUEUE_REPLENISH during PI de-boosting (Juri Lelli) [RHEL-178520]
- RDMA/mana_ib: Validate rx_hash_key_len to prevent buffer overflow (Gaurav Goklani) [RHEL-180089] {CVE-2026-46145}
- ALSA: aloop: Fix peer runtime UAF during format-change stop (Jaroslav Kysela) [RHEL-179304] {CVE-2026-46090}
- ALSA: usb-audio: Add sanity check for OOB writes at silencing (CKI Backport Bot) [RHEL-173939] {CVE-2026-43279}
- net: bonding: fix use-after-free in bond_xmit_broadcast() (Xin Long) [RHEL-168063] {CVE-2026-31419}