Detections
Analytics

Oracle Linux 9 : kernel (ELSA-2026-38491)

medium Nessus Plugin ID 327332

Synopsis

The remote Oracle Linux host is missing one or more security updates.

Description

The remote Oracle Linux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2026-38491 advisory.

 - futex/requeue: Revert 'Prevent NULL pointer dereference in remove_waiter() on self-deadlock'' (Phil Auld) [RHEL-193245] {CVE-2026-53166}
 - locking/rtmutex: Skip remove_waiter() when waiter is not enqueued (Phil Auld) [RHEL-193245] {CVE-2026-53166}
 - futex/requeue: Prevent NULL pointer dereference in remove_waiter() on self-deadlock (Phil Auld) [RHEL-193151] {CVE-2026-43499}
 - rtmutex: Use waiter::task instead of current in remove_waiter() (Phil Auld) [RHEL-193151] {CVE-2026-43499}
 - net: bridge: use a stable FDB dst snapshot in RCU readers (Mohammad Heib) [RHEL-179330] {CVE-2026-46086}
 - net: fix memory leak in skb_segment_list for GRO packets (CKI Backport Bot) [RHEL-189959] {CVE-2026-22979}

Tenable has extracted the preceding description block directly from the Oracle Linux security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

Solution

Update the affected packages.

See Also

https://linux.oracle.com/errata/ELSA-2026-38491.html

Plugin Details

Severity: Medium

ID: 327332

File Name: oraclelinux_ELSA-2026-38491.nasl

Version: 1.1

Type: Local

Agent: unix

Published: 7/16/2026

Updated: 7/16/2026

Supported Sensors: Continuous Assessment, Frictionless Assessment Agent, Nessus Agent, Tenable Cloud Security, Tenable Self-Hosted Container Security, Nessus

Risk Information

VPR

Risk Factor: High

Score: 7.9

Percentile: 99.36

CVSS v2

Risk Factor: Medium

Base Score: 4.6

Temporal Score: 3.6

Vector: CVSS2#AV:L/AC:L/Au:S/C:N/I:N/A:C

CVSS Score Source: CVE-2026-22979

CVSS v3

Risk Factor: Medium

Base Score: 5.5

Temporal Score: 5

Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Temporal Vector: CVSS:3.0/E:P/RL:O/RC:C

CVSS Score Source: CVE-2026-46086

Vulnerability Information

CPE: p-cpe:/a:oracle:linux:kernel-tools-libs-devel, p-cpe:/a:oracle:linux:rtla, p-cpe:/a:oracle:linux:kernel-devel, p-cpe:/a:oracle:linux:kernel-cross-headers, p-cpe:/a:oracle:linux:kernel-debug-modules, p-cpe:/a:oracle:linux:kernel-tools, p-cpe:/a:oracle:linux:rv, p-cpe:/a:oracle:linux:kernel-debug-devel, cpe:/o:oracle:linux:9:8:baseos_patch, p-cpe:/a:oracle:linux:kernel-headers, cpe:/o:oracle:linux:9, p-cpe:/a:oracle:linux:kernel-debug-uki-virt, p-cpe:/a:oracle:linux:kernel-debug-modules-core, p-cpe:/a:oracle:linux:kernel-modules, p-cpe:/a:oracle:linux:kernel-debug-devel-matched, p-cpe:/a:oracle:linux:kernel-abi-stablelists, p-cpe:/a:oracle:linux:kernel-devel-matched, p-cpe:/a:oracle:linux:kernel-debug, p-cpe:/a:oracle:linux:kernel-modules-core, p-cpe:/a:oracle:linux:kernel-core, p-cpe:/a:oracle:linux:kernel-uki-virt, p-cpe:/a:oracle:linux:libperf, p-cpe:/a:oracle:linux:kernel-debug-modules-extra, p-cpe:/a:oracle:linux:python3-perf, p-cpe:/a:oracle:linux:kernel-debug-core, p-cpe:/a:oracle:linux:kernel-uki-virt-addons, p-cpe:/a:oracle:linux:perf, p-cpe:/a:oracle:linux:kernel-modules-extra, p-cpe:/a:oracle:linux:kernel-tools-libs, p-cpe:/a:oracle:linux:kernel

Required KB Items: Host/OracleLinux, Host/RedHat/release, Host/RedHat/rpm-list, Host/local_checks_enabled

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 7/15/2026

Vulnerability Publication Date: 1/23/2026

Reference Information

CVE: CVE-2026-22979, CVE-2026-43499, CVE-2026-46086, CVE-2026-53016