[El-errata] ELSA-2026-2720 Moderate: Oracle Linux 8 kernel security update

[Errata Announcements for Oracle Linux]

Oracle Linux Security Advisory ELSA-2026-2720

http://linux.oracle.com/errata/ELSA-2026-2720.html

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

x86_64:
bpftool-4.18.0-553.105.1.el8_10.x86_64.rpm
kernel-4.18.0-553.105.1.el8_10.x86_64.rpm
kernel-abi-stablelists-4.18.0-553.105.1.el8_10.noarch.rpm
kernel-core-4.18.0-553.105.1.el8_10.x86_64.rpm
kernel-cross-headers-4.18.0-553.105.1.el8_10.x86_64.rpm
kernel-debug-4.18.0-553.105.1.el8_10.x86_64.rpm
kernel-debug-core-4.18.0-553.105.1.el8_10.x86_64.rpm
kernel-debug-devel-4.18.0-553.105.1.el8_10.x86_64.rpm
kernel-debug-modules-4.18.0-553.105.1.el8_10.x86_64.rpm
kernel-debug-modules-extra-4.18.0-553.105.1.el8_10.x86_64.rpm
kernel-devel-4.18.0-553.105.1.el8_10.x86_64.rpm
kernel-doc-4.18.0-553.105.1.el8_10.noarch.rpm
kernel-headers-4.18.0-553.105.1.el8_10.x86_64.rpm
kernel-modules-4.18.0-553.105.1.el8_10.x86_64.rpm
kernel-modules-extra-4.18.0-553.105.1.el8_10.x86_64.rpm
kernel-tools-4.18.0-553.105.1.el8_10.x86_64.rpm
kernel-tools-libs-4.18.0-553.105.1.el8_10.x86_64.rpm
kernel-tools-libs-devel-4.18.0-553.105.1.el8_10.x86_64.rpm
perf-4.18.0-553.105.1.el8_10.x86_64.rpm
python3-perf-4.18.0-553.105.1.el8_10.x86_64.rpm

aarch64:
bpftool-4.18.0-553.105.1.el8_10.aarch64.rpm
kernel-cross-headers-4.18.0-553.105.1.el8_10.aarch64.rpm
kernel-headers-4.18.0-553.105.1.el8_10.aarch64.rpm
kernel-tools-4.18.0-553.105.1.el8_10.aarch64.rpm
kernel-tools-libs-4.18.0-553.105.1.el8_10.aarch64.rpm
kernel-tools-libs-devel-4.18.0-553.105.1.el8_10.aarch64.rpm
perf-4.18.0-553.105.1.el8_10.aarch64.rpm
python3-perf-4.18.0-553.105.1.el8_10.aarch64.rpm


SRPMS:
http://oss.oracle.com/ol8/SRPMS-updates/kernel-4.18.0-553.105.1.el8_10.src.rpm

Related CVEs:

CVE-2023-53762
CVE-2025-40168
CVE-2025-40304




Description of changes:

[4.18.0-553.105.1]
- 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]

[4.18.0-553.105.1]
- s390/ipl: Clear SBP flag when bootprog is set (Mete Durlu) [RHEL-145334]
- Bluetooth: hci_event: Fix checking conn for le_conn_complete_evt (David Marlin) [RHEL-137111] {CVE-2023-53762}
- Bluetooth: hci_sync: Fix UAF in hci_disconnect_all_sync (David Marlin) [RHEL-137111] {CVE-2023-53762}
- Bluetooth: hci_sync: Fix UAF on hci_abort_conn_sync (David Marlin) [RHEL-137111] {CVE-2023-53762}
- Bluetooth: hci_conn: Consolidate code for aborting connections (David Marlin) [RHEL-137111] {CVE-2023-53762}
- Bluetooth: Fix printing errors if LE Connection times out (David Marlin) [RHEL-137111] {CVE-2023-53762}
- Bluetooth: hci_conn: Fix not cleaning up on LE Connection failure (David Marlin) [RHEL-137111] {CVE-2023-53762}
- Bluetooth: hci_sync: hold hdev->lock when cleanup hci_conn (David Marlin) [RHEL-137111] {CVE-2023-53762}
- Bluetooth: Move hci_abort_conn to hci_conn.c (David Marlin) [RHEL-137111] {CVE-2023-53762}
- Bluetooth: mgmt: Fix using hci_conn_abort (David Marlin) [RHEL-137111] {CVE-2023-53762}
- Bluetooth: hci_conn: Fix hci_connect_le_sync (David Marlin) [RHEL-137111] {CVE-2023-53762}
- Bluetooth: hci_sync: Cleanup hci_conn if it cannot be aborted (David Marlin) [RHEL-137111] {CVE-2023-53762}
- Bluetooth: hci_event: Fix checking for invalid handle on error status (David Marlin) [RHEL-137111] {CVE-2023-53762}
- Bluetooth: call hci_le_conn_failed with hdev lock in hci_le_conn_failed (David Marlin) [RHEL-137111] {CVE-2023-53762}
- Bluetooth: hci_sync: fix undefined return of hci_disconnect_all_sync() (David Marlin) [RHEL-137111] {CVE-2023-53762}
- Bluetooth: hci_event: Ignore multiple conn complete events (David Marlin) [RHEL-137111] {CVE-2023-53762}
- Bluetooth: fix null ptr deref on hci_sync_conn_complete_evt (David Marlin) [RHEL-137111] {CVE-2023-53762}
- fbdev: Add bounds checking in bit_putcs to fix vmalloc-out-of-bounds (CKI Backport Bot) [RHEL-137678] {CVE-2025-40304}
- gfs2: Fix duplicate should_fault_in_pages() call (Andreas Gruenbacher) [RHEL-130505]
- smc: Use __sk_dst_get() and dst_dev_rcu() in smc_clc_prfx_match(). (Mete Durlu) [RHEL-130012] {CVE-2025-40168}