Red Hat patches multiple Linux kernel flaws

CERT-FR advisory covers numerous Linux kernel vulnerabilities in Red Hat Enterprise Linux enabling code execution, privilege escalation, DoS, and info disclosure.

CERT-FR (France) issued an advisory summarizing multiple Red Hat Security Advisories (RHSA) addressing a large batch of vulnerabilities in the Linux kernel as shipped across various Red Hat Enterprise Linux (RHEL) product lines, including versions 7, 8, 9.4, and 10.0 across x86_64, aarch64, ppc64le, and s390x architectures, as well as CodeReady Linux Builder variants and Real Time/NFV editions. The vulnerabilities span a wide range of impact types: arbitrary code execution, privilege escalation, remote denial of service, data integrity and confidentiality compromise, and security policy bypass.

The advisory aggregates fixes released via eight separate RHSA bulletins issued between September 4 and September 10, 2026, covering over 40 individual CVEs affecting the Linux kernel. No specific exploitation in the wild is mentioned in the advisory; it is a routine patch notification directing administrators to apply the vendor-supplied kernel updates. Given the breadth of affected RHEL product editions and the potential for privilege escalation and remote code execution in kernel-level flaws, timely patching is recommended, particularly for systems exposed to untrusted local users or network-facing kernel subsystems.

Defenders running any of the listed Red Hat Enterprise Linux product editions (RHEL 7, 8, 9.4, 10.0, CodeReady Linux Builder, Real Time, and SAP Solutions variants) should apply the referenced RHSA errata as soon as feasible. No IOCs, threat actors, or active campaigns are associated with this bulletin — it is a vendor patch advisory relayed by the French national CERT.

Source reporting: https://www.cert.ssi.gouv.fr/avis/CERTFR-2026-AVI-1161