Red Hat Linux Kernel Update Fixes Security Flaw

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7.1

Red Hat Linux Kernel Update Fixes Security Flaw

RHSA-2026:3268

Summary

A security issue has been found in the Linux kernel used by Red Hat systems. This could allow an attacker to take control of the system. Update your Linux kernel to the latest version to fix this issue.

What to do

Update redhat bpftool to version 0:4.18.0-372.181.1.el8_6.
Update redhat bpftool-debuginfo to version 0:4.18.0-372.181.1.el8_6.
Update redhat kernel to version 0:4.18.0-372.181.1.el8_6.
Update redhat kernel-abi-stablelists to version 0:4.18.0-372.181.1.el8_6.
Update redhat kernel-core to version 0:4.18.0-372.181.1.el8_6.
Update redhat kernel-debug to version 0:4.18.0-372.181.1.el8_6.
Update redhat kernel-debug-core to version 0:4.18.0-372.181.1.el8_6.
Update redhat kernel-debug-debuginfo to version 0:4.18.0-372.181.1.el8_6.
Update redhat kernel-debug-devel to version 0:4.18.0-372.181.1.el8_6.
Update redhat kernel-debug-modules to version 0:4.18.0-372.181.1.el8_6.
Update redhat kernel-debug-modules-extra to version 0:4.18.0-372.181.1.el8_6.
Update redhat kernel-debuginfo to version 0:4.18.0-372.181.1.el8_6.
Update redhat kernel-debuginfo-common-x86_64 to version 0:4.18.0-372.181.1.el8_6.
Update redhat kernel-devel to version 0:4.18.0-372.181.1.el8_6.
Update redhat kernel-doc to version 0:4.18.0-372.181.1.el8_6.
Update redhat kernel-modules to version 0:4.18.0-372.181.1.el8_6.
Update redhat kernel-modules-extra to version 0:4.18.0-372.181.1.el8_6.
Update redhat kernel-tools to version 0:4.18.0-372.181.1.el8_6.
Update redhat kernel-tools-debuginfo to version 0:4.18.0-372.181.1.el8_6.
Update redhat kernel-tools-libs to version 0:4.18.0-372.181.1.el8_6.
Update redhat perf to version 0:4.18.0-372.181.1.el8_6.
Update redhat perf-debuginfo to version 0:4.18.0-372.181.1.el8_6.
Update redhat python3-perf to version 0:4.18.0-372.181.1.el8_6.
Update redhat python3-perf-debuginfo to version 0:4.18.0-372.181.1.el8_6.
Update redhat kernel-debuginfo-common-aarch64 to version 0:4.18.0-372.181.1.el8_6.
Update redhat kernel-debuginfo-common-ppc64le to version 0:4.18.0-372.181.1.el8_6.
Update redhat kernel-debuginfo-common-s390x to version 0:4.18.0-372.181.1.el8_6.
Update redhat kernel-zfcpdump to version 0:4.18.0-372.181.1.el8_6.
Update redhat kernel-zfcpdump-core to version 0:4.18.0-372.181.1.el8_6.
Update redhat kernel-zfcpdump-debuginfo to version 0:4.18.0-372.181.1.el8_6.
Update redhat kernel-zfcpdump-devel to version 0:4.18.0-372.181.1.el8_6.
Update redhat kernel-zfcpdump-modules to version 0:4.18.0-372.181.1.el8_6.
Update redhat kernel-zfcpdump-modules-extra to version 0:4.18.0-372.181.1.el8_6.

Affected software

Vendor	Product	Affected versions	Fix available
redhat	bpftool	<= 0:4.18.0-372.181.1.el8_6	0:4.18.0-372.181.1.el8_6
redhat	bpftool-debuginfo	<= 0:4.18.0-372.181.1.el8_6	0:4.18.0-372.181.1.el8_6
redhat	kernel	<= 0:4.18.0-372.181.1.el8_6	0:4.18.0-372.181.1.el8_6
redhat	kernel-abi-stablelists	<= 0:4.18.0-372.181.1.el8_6	0:4.18.0-372.181.1.el8_6
redhat	kernel-core	<= 0:4.18.0-372.181.1.el8_6	0:4.18.0-372.181.1.el8_6
redhat	kernel-debug	<= 0:4.18.0-372.181.1.el8_6	0:4.18.0-372.181.1.el8_6
redhat	kernel-debug-core	<= 0:4.18.0-372.181.1.el8_6	0:4.18.0-372.181.1.el8_6
redhat	kernel-debug-debuginfo	<= 0:4.18.0-372.181.1.el8_6	0:4.18.0-372.181.1.el8_6
redhat	kernel-debug-devel	<= 0:4.18.0-372.181.1.el8_6	0:4.18.0-372.181.1.el8_6
redhat	kernel-debug-modules	<= 0:4.18.0-372.181.1.el8_6	0:4.18.0-372.181.1.el8_6
redhat	kernel-debug-modules-extra	<= 0:4.18.0-372.181.1.el8_6	0:4.18.0-372.181.1.el8_6
redhat	kernel-debuginfo	<= 0:4.18.0-372.181.1.el8_6	0:4.18.0-372.181.1.el8_6
redhat	kernel-debuginfo-common-x86_64	<= 0:4.18.0-372.181.1.el8_6	0:4.18.0-372.181.1.el8_6
redhat	kernel-devel	<= 0:4.18.0-372.181.1.el8_6	0:4.18.0-372.181.1.el8_6
redhat	kernel-doc	<= 0:4.18.0-372.181.1.el8_6	0:4.18.0-372.181.1.el8_6
redhat	kernel-modules	<= 0:4.18.0-372.181.1.el8_6	0:4.18.0-372.181.1.el8_6
redhat	kernel-modules-extra	<= 0:4.18.0-372.181.1.el8_6	0:4.18.0-372.181.1.el8_6
redhat	kernel-tools	<= 0:4.18.0-372.181.1.el8_6	0:4.18.0-372.181.1.el8_6
redhat	kernel-tools-debuginfo	<= 0:4.18.0-372.181.1.el8_6	0:4.18.0-372.181.1.el8_6
redhat	kernel-tools-libs	<= 0:4.18.0-372.181.1.el8_6	0:4.18.0-372.181.1.el8_6
redhat	perf	<= 0:4.18.0-372.181.1.el8_6	0:4.18.0-372.181.1.el8_6
redhat	perf-debuginfo	<= 0:4.18.0-372.181.1.el8_6	0:4.18.0-372.181.1.el8_6
redhat	python3-perf	<= 0:4.18.0-372.181.1.el8_6	0:4.18.0-372.181.1.el8_6
redhat	python3-perf-debuginfo	<= 0:4.18.0-372.181.1.el8_6	0:4.18.0-372.181.1.el8_6
redhat	bpftool	<= 0:4.18.0-372.181.1.el8_6	0:4.18.0-372.181.1.el8_6
redhat	bpftool-debuginfo	<= 0:4.18.0-372.181.1.el8_6	0:4.18.0-372.181.1.el8_6
redhat	kernel	<= 0:4.18.0-372.181.1.el8_6	0:4.18.0-372.181.1.el8_6
redhat	kernel-abi-stablelists	<= 0:4.18.0-372.181.1.el8_6	0:4.18.0-372.181.1.el8_6
redhat	kernel-core	<= 0:4.18.0-372.181.1.el8_6	0:4.18.0-372.181.1.el8_6
redhat	kernel-debug	<= 0:4.18.0-372.181.1.el8_6	0:4.18.0-372.181.1.el8_6
redhat	kernel-debug-core	<= 0:4.18.0-372.181.1.el8_6	0:4.18.0-372.181.1.el8_6
redhat	kernel-debug-debuginfo	<= 0:4.18.0-372.181.1.el8_6	0:4.18.0-372.181.1.el8_6
redhat	kernel-debug-devel	<= 0:4.18.0-372.181.1.el8_6	0:4.18.0-372.181.1.el8_6
redhat	kernel-debug-modules	<= 0:4.18.0-372.181.1.el8_6	0:4.18.0-372.181.1.el8_6
redhat	kernel-debug-modules-extra	<= 0:4.18.0-372.181.1.el8_6	0:4.18.0-372.181.1.el8_6
redhat	kernel-debuginfo	<= 0:4.18.0-372.181.1.el8_6	0:4.18.0-372.181.1.el8_6
redhat	kernel-debuginfo-common-aarch64	<= 0:4.18.0-372.181.1.el8_6	0:4.18.0-372.181.1.el8_6
redhat	kernel-debuginfo-common-ppc64le	<= 0:4.18.0-372.181.1.el8_6	0:4.18.0-372.181.1.el8_6
redhat	kernel-debuginfo-common-s390x	<= 0:4.18.0-372.181.1.el8_6	0:4.18.0-372.181.1.el8_6
redhat	kernel-debuginfo-common-x86_64	<= 0:4.18.0-372.181.1.el8_6	0:4.18.0-372.181.1.el8_6
redhat	kernel-devel	<= 0:4.18.0-372.181.1.el8_6	0:4.18.0-372.181.1.el8_6
redhat	kernel-doc	<= 0:4.18.0-372.181.1.el8_6	0:4.18.0-372.181.1.el8_6
redhat	kernel-modules	<= 0:4.18.0-372.181.1.el8_6	0:4.18.0-372.181.1.el8_6
redhat	kernel-modules-extra	<= 0:4.18.0-372.181.1.el8_6	0:4.18.0-372.181.1.el8_6
redhat	kernel-tools	<= 0:4.18.0-372.181.1.el8_6	0:4.18.0-372.181.1.el8_6
redhat	kernel-tools-debuginfo	<= 0:4.18.0-372.181.1.el8_6	0:4.18.0-372.181.1.el8_6
redhat	kernel-tools-libs	<= 0:4.18.0-372.181.1.el8_6	0:4.18.0-372.181.1.el8_6
redhat	kernel-zfcpdump	<= 0:4.18.0-372.181.1.el8_6	0:4.18.0-372.181.1.el8_6
redhat	kernel-zfcpdump-core	<= 0:4.18.0-372.181.1.el8_6	0:4.18.0-372.181.1.el8_6
redhat	kernel-zfcpdump-debuginfo	<= 0:4.18.0-372.181.1.el8_6	0:4.18.0-372.181.1.el8_6
redhat	kernel-zfcpdump-devel	<= 0:4.18.0-372.181.1.el8_6	0:4.18.0-372.181.1.el8_6
redhat	kernel-zfcpdump-modules	<= 0:4.18.0-372.181.1.el8_6	0:4.18.0-372.181.1.el8_6
redhat	kernel-zfcpdump-modules-extra	<= 0:4.18.0-372.181.1.el8_6	0:4.18.0-372.181.1.el8_6
redhat	perf	<= 0:4.18.0-372.181.1.el8_6	0:4.18.0-372.181.1.el8_6
redhat	perf-debuginfo	<= 0:4.18.0-372.181.1.el8_6	0:4.18.0-372.181.1.el8_6
redhat	python3-perf	<= 0:4.18.0-372.181.1.el8_6	0:4.18.0-372.181.1.el8_6
redhat	python3-perf-debuginfo	<= 0:4.18.0-372.181.1.el8_6	0:4.18.0-372.181.1.el8_6
redhat	bpftool	<= 0:4.18.0-372.181.1.el8_6	0:4.18.0-372.181.1.el8_6
redhat	bpftool-debuginfo	<= 0:4.18.0-372.181.1.el8_6	0:4.18.0-372.181.1.el8_6
redhat	kernel	<= 0:4.18.0-372.181.1.el8_6	0:4.18.0-372.181.1.el8_6
redhat	kernel-abi-stablelists	<= 0:4.18.0-372.181.1.el8_6	0:4.18.0-372.181.1.el8_6
redhat	kernel-core	<= 0:4.18.0-372.181.1.el8_6	0:4.18.0-372.181.1.el8_6
redhat	kernel-debug	<= 0:4.18.0-372.181.1.el8_6	0:4.18.0-372.181.1.el8_6
redhat	kernel-debug-core	<= 0:4.18.0-372.181.1.el8_6	0:4.18.0-372.181.1.el8_6
redhat	kernel-debug-debuginfo	<= 0:4.18.0-372.181.1.el8_6	0:4.18.0-372.181.1.el8_6
redhat	kernel-debug-devel	<= 0:4.18.0-372.181.1.el8_6	0:4.18.0-372.181.1.el8_6
redhat	kernel-debug-modules	<= 0:4.18.0-372.181.1.el8_6	0:4.18.0-372.181.1.el8_6
redhat	kernel-debug-modules-extra	<= 0:4.18.0-372.181.1.el8_6	0:4.18.0-372.181.1.el8_6
redhat	kernel-debuginfo	<= 0:4.18.0-372.181.1.el8_6	0:4.18.0-372.181.1.el8_6
redhat	kernel-debuginfo-common-x86_64	<= 0:4.18.0-372.181.1.el8_6	0:4.18.0-372.181.1.el8_6
redhat	kernel-devel	<= 0:4.18.0-372.181.1.el8_6	0:4.18.0-372.181.1.el8_6
redhat	kernel-doc	<= 0:4.18.0-372.181.1.el8_6	0:4.18.0-372.181.1.el8_6
redhat	kernel-modules	<= 0:4.18.0-372.181.1.el8_6	0:4.18.0-372.181.1.el8_6
redhat	kernel-modules-extra	<= 0:4.18.0-372.181.1.el8_6	0:4.18.0-372.181.1.el8_6
redhat	kernel-tools	<= 0:4.18.0-372.181.1.el8_6	0:4.18.0-372.181.1.el8_6
redhat	kernel-tools-debuginfo	<= 0:4.18.0-372.181.1.el8_6	0:4.18.0-372.181.1.el8_6
redhat	kernel-tools-libs	<= 0:4.18.0-372.181.1.el8_6	0:4.18.0-372.181.1.el8_6
redhat	perf	<= 0:4.18.0-372.181.1.el8_6	0:4.18.0-372.181.1.el8_6
redhat	perf-debuginfo	<= 0:4.18.0-372.181.1.el8_6	0:4.18.0-372.181.1.el8_6
redhat	python3-perf	<= 0:4.18.0-372.181.1.el8_6	0:4.18.0-372.181.1.el8_6
redhat	python3-perf-debuginfo	<= 0:4.18.0-372.181.1.el8_6	0:4.18.0-372.181.1.el8_6

Original title

Red Hat Security Advisory: kernel security update

osv CVSS3.1 7.1

https://access.redhat.com/errata/RHSA-2026:3268 Vendor Advisory
https://access.redhat.com/security/updates/classification/#important Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=2373326 Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=2383404 Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=2383487 Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=2394601 Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=2401432 Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=2419837 Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=2420329 Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=2436791 Third Party Advisory
https://security.access.redhat.com/data/csaf/v2/advisories/2026/rhsa-2026_3268.j... Vendor Advisory
https://access.redhat.com/security/cve/CVE-2023-53821 Third Party Advisory
https://www.cve.org/CVERecord?id=CVE-2023-53821 Vendor Advisory
https://nvd.nist.gov/vuln/detail/CVE-2023-53821 Vendor Advisory
https://lore.kernel.org/linux-cve-announce/2025120950-CVE-2023-53821-9542@gregkh... Third Party Advisory
https://access.redhat.com/security/cve/CVE-2025-38022 Third Party Advisory
https://www.cve.org/CVERecord?id=CVE-2025-38022 Vendor Advisory
https://nvd.nist.gov/vuln/detail/CVE-2025-38022 Vendor Advisory
https://lore.kernel.org/linux-cve-announce/2025061846-CVE-2025-38022-41b3@gregkh... Third Party Advisory
https://access.redhat.com/security/cve/CVE-2025-38415 Third Party Advisory
https://www.cve.org/CVERecord?id=CVE-2025-38415 Vendor Advisory
https://nvd.nist.gov/vuln/detail/CVE-2025-38415 Vendor Advisory
https://lore.kernel.org/linux-cve-announce/2025072513-CVE-2025-38415-c634@gregkh... Third Party Advisory
https://access.redhat.com/security/cve/CVE-2025-38459 Third Party Advisory
https://www.cve.org/CVERecord?id=CVE-2025-38459 Vendor Advisory
https://nvd.nist.gov/vuln/detail/CVE-2025-38459 Vendor Advisory
https://lore.kernel.org/linux-cve-announce/2025072507-CVE-2025-38459-e941@gregkh... Third Party Advisory
https://access.redhat.com/security/cve/CVE-2025-39760 Third Party Advisory
https://www.cve.org/CVERecord?id=CVE-2025-39760 Vendor Advisory
https://nvd.nist.gov/vuln/detail/CVE-2025-39760 Vendor Advisory
https://lore.kernel.org/linux-cve-announce/2025091145-CVE-2025-39760-2d5f@gregkh... Third Party Advisory
https://access.redhat.com/security/cve/CVE-2025-39933 Third Party Advisory
https://www.cve.org/CVERecord?id=CVE-2025-39933 Vendor Advisory
https://nvd.nist.gov/vuln/detail/CVE-2025-39933 Vendor Advisory
https://lore.kernel.org/linux-cve-announce/2025100417-CVE-2025-39933-e224@gregkh... Third Party Advisory
https://access.redhat.com/security/cve/CVE-2025-40271 Third Party Advisory
https://www.cve.org/CVERecord?id=CVE-2025-40271 Vendor Advisory
https://nvd.nist.gov/vuln/detail/CVE-2025-40271 Vendor Advisory
https://lore.kernel.org/linux-cve-announce/2025120716-CVE-2025-40271-7612@gregkh... Third Party Advisory
https://access.redhat.com/security/cve/CVE-2026-23074 Third Party Advisory
https://www.cve.org/CVERecord?id=CVE-2026-23074 Vendor Advisory
https://nvd.nist.gov/vuln/detail/CVE-2026-23074 Vendor Advisory
https://lore.kernel.org/linux-cve-announce/2026020419-CVE-2026-23074-6bb8@gregkh... Third Party Advisory

Published: 25 Feb 2026 · Updated: 13 Mar 2026 · First seen: 10 Mar 2026