RockyLinux 8 : kernel-rt (RLSA-2026:82806)

high Nessus Plugin ID 366113

Synopsis

The remote RockyLinux host is missing one or more security updates.

Description

The remote RockyLinux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the RLSA-2026:82806 advisory.

* kernel: openvswitch: defer tunnel netdev_put to RCU release (CVE-2026-31678)

* kernel: ipv6: validate extension header length before copying to cmsg (CVE-2026-63920)

* kernel: drm/amd/display: set new_stream to NULL after release (CVE-2026-68236)

* kernel: drm/dp/mst: fix buffer overflows in sideband chunk accumulation (CVE-2026-68278)

* kernel: wifi: mac80211: defer link RX stats percpu free to RCU (CVE-2026-68409)

* kernel: drm/amdgpu/vce: fix integer overflow in image size (CVE-2026-68108)

* kernel: drm/vmwgfx: use check_add_overflow for shader size+offset bound (CVE-2026-80887)

* kernel: drm/amdkfd: Add TLB flush after MES queue eviction/suspension (CVE-2026-89811)

Tenable has extracted the preceding description block directly from the RockyLinux 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.

Plugin Details

Severity: High

ID: 366113

File Name: rocky_linux_RLSA-2026-82806.nasl

Version: 1.1

Type: Local

Family: Rocky Linux Local Security Checks

Published: 10/15/2026

Updated: 10/15/2026

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

Risk Information

VPR

Risk Factor: High

Score: 7.6

Percentile: 98.26

CVSS v2

Risk Factor: Critical

Base Score: 10

Temporal Score: 7.4

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

CVSS Score Source: CVE-2026-68236

CVSS v3

Risk Factor: High

Base Score: 8.8

Temporal Score: 7.7

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

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

CVSS Score Source: CVE-2026-89811

Vulnerability Information

CPE: cpe:/o:rocky:linux:8, p-cpe:/a:rocky:linux:kernel-rt-core, p-cpe:/a:rocky:linux:kernel-rt-debug-core, p-cpe:/a:rocky:linux:kernel-rt-debug-debuginfo, p-cpe:/a:rocky:linux:kernel-rt-debug-devel, p-cpe:/a:rocky:linux:kernel-rt-debug-kvm, p-cpe:/a:rocky:linux:kernel-rt-debug-modules-extra, p-cpe:/a:rocky:linux:kernel-rt-debug-modules, p-cpe:/a:rocky:linux:kernel-rt-debug, p-cpe:/a:rocky:linux:kernel-rt-debuginfo-common-x86_64, p-cpe:/a:rocky:linux:kernel-rt-debuginfo, p-cpe:/a:rocky:linux:kernel-rt-devel, p-cpe:/a:rocky:linux:kernel-rt-kvm, p-cpe:/a:rocky:linux:kernel-rt-modules-extra, p-cpe:/a:rocky:linux:kernel-rt-modules, p-cpe:/a:rocky:linux:kernel-rt

Required KB Items: Host/local_checks_enabled, Host/cpu, Host/RockyLinux/release, Host/RockyLinux/rpm-list

Exploit Ease: No known exploits are available

Patch Publication Date: 10/15/2026

Vulnerability Publication Date: 4/23/2026

Reference Information

CVE: CVE-2026-31678, CVE-2026-63920, CVE-2026-68108, CVE-2026-68236, CVE-2026-68278, CVE-2026-68409, CVE-2026-80887, CVE-2026-89811

Detections

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