Red Hat has identified several security flaws in its Linux kernel that could allow attackers to gain higher privileges, disrupt services remotely, or access confidential data. The vulnerabilities affect a broad range of Red Hat CodeReady Linux Builder and Red Hat Enterprise Linux releases across ARM 64, IBM z Systems, Power, and x86_64 architectures, including extended update support and extended lifecycle versions. Affected systems include Red Hat Enterprise Linux for ARM 64, IBM z Systems, Power, and Real Time editions, as well as CodeReady Linux Builder images. CVE identifiers associated with these flaws include CVE‑2025‑37849, CVE‑2025‑38141, CVE‑2025‑38154, CVE‑2025‑38180, CVE‑2025‑38248, CVE‑2025‑40096, CVE‑2025‑68349, CVE‑2025‑71085, CVE‑2026‑23001, CVE‑2026‑23204, and CVE‑2026‑23209. Security bulletins RHSA‑2026:6036, RHSA‑2026:6037, RHSA‑2026:6193, and RHSA‑2026:6310 detail the specific issues and provide patches. Red Hat recommends applying the updates referenced in those bulletins to mitigate the risks.
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