Monday, April 6, 2026

[USN-8145-3] Linux kernel (GCP) vulnerabilities

========================================================================== Ubuntu Security Notice USN-8145-3 April 06, 2026 linux-gcp, linux-gcp-4.15, linux-gcp-fips vulnerabilities ========================================================================== A security issue affects these releases of Ubuntu and its derivatives: - Ubuntu 18.04 LTS - Ubuntu 16.04 LTS Summary: Several security issues were fixed in the Linux kernel. Software Description: - linux-gcp-4.15: Linux kernel for Google Cloud Platform (GCP) systems - linux-gcp-fips: Linux kernel for Google Cloud Platform (GCP) systems with FIPS - linux-gcp: Linux kernel for Google Cloud Platform (GCP) systems Details: Several security issues were discovered in the Linux kernel. An attacker could possibly use these to compromise the system. This update corrects flaws in the following subsystems: - ARM64 architecture; - Cryptographic API; - UDF file system; - NFC subsystem; - Network traffic control; (CVE-2024-46777, CVE-2025-21735, CVE-2025-37849, CVE-2026-23060, CVE-2026-23074) Update instructions: The problem can be corrected by updating your system to the following package versions: Ubuntu 18.04 LTS linux-image-4.15.0-1183-gcp 4.15.0-1183.200 Available with Ubuntu Pro linux-image-4.15.0-2091-gcp-fips 4.15.0-2091.97 Available with Ubuntu Pro linux-image-gcp-4.15 4.15.0.1183.196 Available with Ubuntu Pro linux-image-gcp-fips 4.15.0.2091.89 Available with Ubuntu Pro linux-image-gcp-fips-4.15 4.15.0.2091.89 Available with Ubuntu Pro linux-image-gcp-lts-18.04 4.15.0.1183.196 Available with Ubuntu Pro Ubuntu 16.04 LTS linux-image-4.15.0-1183-gcp 4.15.0-1183.200~16.04.2 Available with Ubuntu Pro linux-image-gcp 4.15.0.1183.200~16.04.2 Available with Ubuntu Pro linux-image-gke 4.15.0.1183.200~16.04.2 Available with Ubuntu Pro After a standard system update you need to reboot your computer to make all the necessary changes. ATTENTION: Due to an unavoidable ABI change the kernel updates have been given a new version number, which requires you to recompile and reinstall all third party kernel modules you might have installed. Unless you manually uninstalled the standard kernel metapackages (e.g. linux-generic, linux-generic-lts-RELEASE, linux-virtual, linux-powerpc), a standard system upgrade will automatically perform this as well. References: https://ubuntu.com/security/notices/USN-8145-3 https://ubuntu.com/security/notices/USN-8145-2 https://ubuntu.com/security/notices/USN-8145-1 CVE-2024-46777, CVE-2025-21735, CVE-2025-37849, CVE-2026-23060, CVE-2026-23074

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