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Red Hat Enterprise Linux Kernel RT Security Update

published 6 months ago

Summary

A security update is available for the Red Hat Enterprise Linux Kernel RT. This update fixes a security issue that could allow an attacker to execute arbitrary code. It's essential to apply this update to ensure the security of your system.

What to do

Update redhat kernel-rt to version 0:5.14.0-284.166.1.rt14.451.el9_2.
Update redhat kernel-rt-core to version 0:5.14.0-284.166.1.rt14.451.el9_2.
Update redhat kernel-rt-debug to version 0:5.14.0-284.166.1.rt14.451.el9_2.
Update redhat kernel-rt-debug-core to version 0:5.14.0-284.166.1.rt14.451.el9_2.
Update redhat kernel-rt-debug-debuginfo to version 0:5.14.0-284.166.1.rt14.451.el9_2.
Update redhat kernel-rt-debug-devel to version 0:5.14.0-284.166.1.rt14.451.el9_2.
Update redhat kernel-rt-debug-kvm to version 0:5.14.0-284.166.1.rt14.451.el9_2.
Update redhat kernel-rt-debug-modules to version 0:5.14.0-284.166.1.rt14.451.el9_2.
Update redhat kernel-rt-debug-modules-core to version 0:5.14.0-284.166.1.rt14.451.el9_2.
Update redhat kernel-rt-debug-modules-extra to version 0:5.14.0-284.166.1.rt14.451.el9_2.
Update redhat kernel-rt-debuginfo to version 0:5.14.0-284.166.1.rt14.451.el9_2.
Update redhat kernel-rt-debuginfo-common-x86_64 to version 0:5.14.0-284.166.1.rt14.451.el9_2.
Update redhat kernel-rt-devel to version 0:5.14.0-284.166.1.rt14.451.el9_2.
Update redhat kernel-rt-kvm to version 0:5.14.0-284.166.1.rt14.451.el9_2.
Update redhat kernel-rt-modules to version 0:5.14.0-284.166.1.rt14.451.el9_2.
Update redhat kernel-rt-modules-core to version 0:5.14.0-284.166.1.rt14.451.el9_2.
Update redhat kernel-rt-modules-extra to version 0:5.14.0-284.166.1.rt14.451.el9_2.

Affected software

Ecosystem	Vendor	Product	Affected versions
Red Hat:rhel_e4s:9.2::nfv	redhat	kernel-rt	< 0:5.14.0-284.166.1.rt14.451.el9_2 Fix: upgrade to 0:5.14.0-284.166.1.rt14.451.el9_2
Red Hat:rhel_e4s:9.2::nfv	redhat	kernel-rt-core	< 0:5.14.0-284.166.1.rt14.451.el9_2 Fix: upgrade to 0:5.14.0-284.166.1.rt14.451.el9_2
Red Hat:rhel_e4s:9.2::nfv	redhat	kernel-rt-debug	< 0:5.14.0-284.166.1.rt14.451.el9_2 Fix: upgrade to 0:5.14.0-284.166.1.rt14.451.el9_2
Red Hat:rhel_e4s:9.2::nfv	redhat	kernel-rt-debug-core	< 0:5.14.0-284.166.1.rt14.451.el9_2 Fix: upgrade to 0:5.14.0-284.166.1.rt14.451.el9_2
Red Hat:rhel_e4s:9.2::nfv	redhat	kernel-rt-debug-debuginfo	< 0:5.14.0-284.166.1.rt14.451.el9_2 Fix: upgrade to 0:5.14.0-284.166.1.rt14.451.el9_2
Red Hat:rhel_e4s:9.2::nfv	redhat	kernel-rt-debug-devel	< 0:5.14.0-284.166.1.rt14.451.el9_2 Fix: upgrade to 0:5.14.0-284.166.1.rt14.451.el9_2
Red Hat:rhel_e4s:9.2::nfv	redhat	kernel-rt-debug-kvm	< 0:5.14.0-284.166.1.rt14.451.el9_2 Fix: upgrade to 0:5.14.0-284.166.1.rt14.451.el9_2
Red Hat:rhel_e4s:9.2::nfv	redhat	kernel-rt-debug-modules	< 0:5.14.0-284.166.1.rt14.451.el9_2 Fix: upgrade to 0:5.14.0-284.166.1.rt14.451.el9_2
Red Hat:rhel_e4s:9.2::nfv	redhat	kernel-rt-debug-modules-core	< 0:5.14.0-284.166.1.rt14.451.el9_2 Fix: upgrade to 0:5.14.0-284.166.1.rt14.451.el9_2
Red Hat:rhel_e4s:9.2::nfv	redhat	kernel-rt-debug-modules-extra	< 0:5.14.0-284.166.1.rt14.451.el9_2 Fix: upgrade to 0:5.14.0-284.166.1.rt14.451.el9_2
Red Hat:rhel_e4s:9.2::nfv	redhat	kernel-rt-debuginfo	< 0:5.14.0-284.166.1.rt14.451.el9_2 Fix: upgrade to 0:5.14.0-284.166.1.rt14.451.el9_2
Red Hat:rhel_e4s:9.2::nfv	redhat	kernel-rt-debuginfo-common-x86_64	< 0:5.14.0-284.166.1.rt14.451.el9_2 Fix: upgrade to 0:5.14.0-284.166.1.rt14.451.el9_2
Red Hat:rhel_e4s:9.2::nfv	redhat	kernel-rt-devel	< 0:5.14.0-284.166.1.rt14.451.el9_2 Fix: upgrade to 0:5.14.0-284.166.1.rt14.451.el9_2
Red Hat:rhel_e4s:9.2::nfv	redhat	kernel-rt-kvm	< 0:5.14.0-284.166.1.rt14.451.el9_2 Fix: upgrade to 0:5.14.0-284.166.1.rt14.451.el9_2
Red Hat:rhel_e4s:9.2::nfv	redhat	kernel-rt-modules	< 0:5.14.0-284.166.1.rt14.451.el9_2 Fix: upgrade to 0:5.14.0-284.166.1.rt14.451.el9_2
Red Hat:rhel_e4s:9.2::nfv	redhat	kernel-rt-modules-core	< 0:5.14.0-284.166.1.rt14.451.el9_2 Fix: upgrade to 0:5.14.0-284.166.1.rt14.451.el9_2
Red Hat:rhel_e4s:9.2::nfv	redhat	kernel-rt-modules-extra	< 0:5.14.0-284.166.1.rt14.451.el9_2 Fix: upgrade to 0:5.14.0-284.166.1.rt14.451.el9_2
Red Hat:rhel_e4s:9.2::realtime	redhat	kernel-rt	< 0:5.14.0-284.166.1.rt14.451.el9_2 Fix: upgrade to 0:5.14.0-284.166.1.rt14.451.el9_2
Red Hat:rhel_e4s:9.2::realtime	redhat	kernel-rt-core	< 0:5.14.0-284.166.1.rt14.451.el9_2 Fix: upgrade to 0:5.14.0-284.166.1.rt14.451.el9_2
Red Hat:rhel_e4s:9.2::realtime	redhat	kernel-rt-debug	< 0:5.14.0-284.166.1.rt14.451.el9_2 Fix: upgrade to 0:5.14.0-284.166.1.rt14.451.el9_2
Red Hat:rhel_e4s:9.2::realtime	redhat	kernel-rt-debug-core	< 0:5.14.0-284.166.1.rt14.451.el9_2 Fix: upgrade to 0:5.14.0-284.166.1.rt14.451.el9_2
Red Hat:rhel_e4s:9.2::realtime	redhat	kernel-rt-debug-debuginfo	< 0:5.14.0-284.166.1.rt14.451.el9_2 Fix: upgrade to 0:5.14.0-284.166.1.rt14.451.el9_2
Red Hat:rhel_e4s:9.2::realtime	redhat	kernel-rt-debug-devel	< 0:5.14.0-284.166.1.rt14.451.el9_2 Fix: upgrade to 0:5.14.0-284.166.1.rt14.451.el9_2
Red Hat:rhel_e4s:9.2::realtime	redhat	kernel-rt-debug-kvm	< 0:5.14.0-284.166.1.rt14.451.el9_2 Fix: upgrade to 0:5.14.0-284.166.1.rt14.451.el9_2
Red Hat:rhel_e4s:9.2::realtime	redhat	kernel-rt-debug-modules	< 0:5.14.0-284.166.1.rt14.451.el9_2 Fix: upgrade to 0:5.14.0-284.166.1.rt14.451.el9_2
Red Hat:rhel_e4s:9.2::realtime	redhat	kernel-rt-debug-modules-core	< 0:5.14.0-284.166.1.rt14.451.el9_2 Fix: upgrade to 0:5.14.0-284.166.1.rt14.451.el9_2
Red Hat:rhel_e4s:9.2::realtime	redhat	kernel-rt-debug-modules-extra	< 0:5.14.0-284.166.1.rt14.451.el9_2 Fix: upgrade to 0:5.14.0-284.166.1.rt14.451.el9_2
Red Hat:rhel_e4s:9.2::realtime	redhat	kernel-rt-debuginfo	< 0:5.14.0-284.166.1.rt14.451.el9_2 Fix: upgrade to 0:5.14.0-284.166.1.rt14.451.el9_2
Red Hat:rhel_e4s:9.2::realtime	redhat	kernel-rt-debuginfo-common-x86_64	< 0:5.14.0-284.166.1.rt14.451.el9_2 Fix: upgrade to 0:5.14.0-284.166.1.rt14.451.el9_2
Red Hat:rhel_e4s:9.2::realtime	redhat	kernel-rt-devel	< 0:5.14.0-284.166.1.rt14.451.el9_2 Fix: upgrade to 0:5.14.0-284.166.1.rt14.451.el9_2
Red Hat:rhel_e4s:9.2::realtime	redhat	kernel-rt-kvm	< 0:5.14.0-284.166.1.rt14.451.el9_2 Fix: upgrade to 0:5.14.0-284.166.1.rt14.451.el9_2
Red Hat:rhel_e4s:9.2::realtime	redhat	kernel-rt-modules	< 0:5.14.0-284.166.1.rt14.451.el9_2 Fix: upgrade to 0:5.14.0-284.166.1.rt14.451.el9_2
Red Hat:rhel_e4s:9.2::realtime	redhat	kernel-rt-modules-core	< 0:5.14.0-284.166.1.rt14.451.el9_2 Fix: upgrade to 0:5.14.0-284.166.1.rt14.451.el9_2
Red Hat:rhel_e4s:9.2::realtime	redhat	kernel-rt-modules-extra	< 0:5.14.0-284.166.1.rt14.451.el9_2 Fix: upgrade to 0:5.14.0-284.166.1.rt14.451.el9_2

Original advisory text

Red Hat Security Advisory: kernel-rt security update

References

https://access.redhat.com/errata/RHSA-2026:9512 Vendor Advisory
https://access.redhat.com/security/updates/classification/#moderate Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=2378981 Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=2404105 Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=2429065 Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=2436805 Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=2439872 Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=2439886 Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=2439900 Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=2439931 Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=2444376 Third Party Advisory
https://security.access.redhat.com/data/csaf/v2/advisories/2026/rhsa-2026_9512.j... Vendor Advisory
https://access.redhat.com/security/cve/CVE-2025-38248 Third Party Advisory
https://www.cve.org/CVERecord?id=CVE-2025-38248 Vendor Advisory
https://nvd.nist.gov/vuln/detail/CVE-2025-38248 Vendor Advisory
https://lore.kernel.org/linux-cve-announce/2025070934-CVE-2025-38248-003c@gregkh... Third Party Advisory
https://access.redhat.com/security/cve/CVE-2025-39981 Third Party Advisory
https://www.cve.org/CVERecord?id=CVE-2025-39981 Vendor Advisory
https://nvd.nist.gov/vuln/detail/CVE-2025-39981 Vendor Advisory
https://lore.kernel.org/linux-cve-announce/2025101559-CVE-2025-39981-fe1d@gregkh... Third Party Advisory
https://access.redhat.com/security/cve/CVE-2025-68800 Third Party Advisory
https://www.cve.org/CVERecord?id=CVE-2025-68800 Vendor Advisory
https://nvd.nist.gov/vuln/detail/CVE-2025-68800 Vendor Advisory
https://lore.kernel.org/linux-cve-announce/2026011307-CVE-2025-68800-39d2@gregkh... Third Party Advisory
https://access.redhat.com/security/cve/CVE-2026-23066 Third Party Advisory
https://www.cve.org/CVERecord?id=CVE-2026-23066 Vendor Advisory
https://nvd.nist.gov/vuln/detail/CVE-2026-23066 Vendor Advisory
https://lore.kernel.org/linux-cve-announce/2026020416-CVE-2026-23066-8e44@gregkh... Third Party Advisory
https://access.redhat.com/security/cve/CVE-2026-23144 Third Party Advisory
https://www.cve.org/CVERecord?id=CVE-2026-23144 Vendor Advisory
https://nvd.nist.gov/vuln/detail/CVE-2026-23144 Vendor Advisory
https://lore.kernel.org/linux-cve-announce/2026021417-CVE-2026-23144-297b@gregkh... Third Party Advisory
https://access.redhat.com/security/cve/CVE-2026-23171 Third Party Advisory
https://www.cve.org/CVERecord?id=CVE-2026-23171 Vendor Advisory
https://nvd.nist.gov/vuln/detail/CVE-2026-23171 Vendor Advisory
https://lore.kernel.org/linux-cve-announce/2026021421-CVE-2026-23171-5a73@gregkh... Third Party Advisory
https://access.redhat.com/security/cve/CVE-2026-23204 Third Party Advisory
https://www.cve.org/CVERecord?id=CVE-2026-23204 Vendor Advisory
https://nvd.nist.gov/vuln/detail/CVE-2026-23204 Vendor Advisory
https://lore.kernel.org/linux-cve-announce/2026021437-CVE-2026-23204-be85@gregkh... Third Party Advisory
https://access.redhat.com/security/cve/CVE-2026-23209 Third Party Advisory
https://www.cve.org/CVERecord?id=CVE-2026-23209 Vendor Advisory
https://nvd.nist.gov/vuln/detail/CVE-2026-23209 Vendor Advisory
https://lore.kernel.org/linux-cve-announce/2026021439-CVE-2026-23209-9ad6@gregkh... Third Party Advisory
https://access.redhat.com/security/cve/CVE-2026-23231 Third Party Advisory
https://www.cve.org/CVERecord?id=CVE-2026-23231 Vendor Advisory
https://nvd.nist.gov/vuln/detail/CVE-2026-23231 Vendor Advisory
https://lore.kernel.org/linux-cve-announce/2026030436-CVE-2026-23231-1a96@gregkh... Third Party Advisory

Fix within

Internet-facing 14 days

Internal At next upgrade

Not known to be exploited
Needs hands-on effort to exploit (estimated)
Gives an attacker full control (estimated)

Severity

7.5 High

Timeline

Published22 Apr 2026

Updated22 May 2026

First seen22 May 2026

Sources

RHSA-2026:9512 · OSV

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