Ubuntu alert USN-8112-1 (linux, linux-aws, linux-aws-hwe, linux-gcp, linux-gcp-4.15, linux-hwe, linux-kvm, linux-oracle)
| From: | Giampaolo Fresi Roglia <giampaolo.fresi.roglia@canonical.com> | |
| To: | ubuntu-security-announce@lists.ubuntu.com | |
| Subject: | [USN-8112-1] Linux kernel vulnerabilities | |
| Date: | Fri, 20 Mar 2026 11:20:30 +0100 | |
| Message-ID: | <ap4oulldfmyf81.fsf@canonical.com> |
========================================================================== Ubuntu Security Notice USN-8112-1 March 20, 2026 linux, linux-aws, linux-aws-hwe, linux-gcp, linux-gcp-4.15, linux-hwe, linux-kvm, linux-oracle 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: Linux kernel - linux-aws: Linux kernel for Amazon Web Services (AWS) systems - linux-gcp-4.15: Linux kernel for Google Cloud Platform (GCP) systems - linux-kvm: Linux kernel for cloud environments - linux-oracle: Linux kernel for Oracle Cloud systems - linux-aws-hwe: Linux kernel for Amazon Web Services (AWS-HWE) systems - linux-gcp: Linux kernel for Google Cloud Platform (GCP) systems - linux-hwe: Linux hardware enablement (HWE) kernel 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: - x86 architecture; - MMC subsystem; - Network drivers; - USB Device Class drivers; - BTRFS file system; - HFS+ file system; - XFRM subsystem; - IPv4 networking; - IPv6 networking; - MAC80211 subsystem; - Simplified Mandatory Access Control Kernel framework; (CVE-2021-47599, CVE-2022-48875, CVE-2022-49267, CVE-2024-47659, CVE-2024-49927, CVE-2024-56548, CVE-2024-56581, CVE-2024-56593, CVE-2025-21704, CVE-2025-40215) Update instructions: The problem can be corrected by updating your system to the following package versions: Ubuntu 18.04 LTS linux-image-4.15.0-1151-oracle 4.15.0-1151.162 Available with Ubuntu Pro linux-image-4.15.0-1171-kvm 4.15.0-1171.176 Available with Ubuntu Pro linux-image-4.15.0-1182-gcp 4.15.0-1182.199 Available with Ubuntu Pro linux-image-4.15.0-1189-aws 4.15.0-1189.202 Available with Ubuntu Pro linux-image-4.15.0-247-generic 4.15.0-247.259 Available with Ubuntu Pro linux-image-4.15.0-247-lowlatency 4.15.0-247.259 Available with Ubuntu Pro linux-image-aws-4.15 4.15.0.1189.187 Available with Ubuntu Pro linux-image-aws-lts-18.04 4.15.0.1189.187 Available with Ubuntu Pro linux-image-gcp-4.15 4.15.0.1182.195 Available with Ubuntu Pro linux-image-gcp-lts-18.04 4.15.0.1182.195 Available with Ubuntu Pro linux-image-generic 4.15.0.247.231 Available with Ubuntu Pro linux-image-kvm 4.15.0.1171.162 Available with Ubuntu Pro linux-image-lowlatency 4.15.0.247.231 Available with Ubuntu Pro linux-image-oracle-4.15 4.15.0.1151.156 Available with Ubuntu Pro linux-image-oracle-lts-18.04 4.15.0.1151.156 Available with Ubuntu Pro linux-image-virtual 4.15.0.247.231 Available with Ubuntu Pro Ubuntu 16.04 LTS linux-image-4.15.0-1151-oracle 4.15.0-1151.162~16.04.1 Available with Ubuntu Pro linux-image-4.15.0-1182-gcp 4.15.0-1182.199~16.04.1 Available with Ubuntu Pro linux-image-4.15.0-1189-aws 4.15.0-1189.202~16.04.1 Available with Ubuntu Pro linux-image-4.15.0-247-generic 4.15.0-247.259~16.04.1 Available with Ubuntu Pro linux-image-4.15.0-247-lowlatency 4.15.0-247.259~16.04.1 Available with Ubuntu Pro linux-image-aws-hwe 4.15.0.1189.202~16.04.1 Available with Ubuntu Pro linux-image-gcp 4.15.0.1182.199~16.04.1 Available with Ubuntu Pro linux-image-generic-hwe-16.04 4.15.0.247.259~16.04.1 Available with Ubuntu Pro linux-image-gke 4.15.0.1182.199~16.04.1 Available with Ubuntu Pro linux-image-lowlatency-hwe-16.04 4.15.0.247.259~16.04.1 Available with Ubuntu Pro linux-image-oem 4.15.0.247.259~16.04.1 Available with Ubuntu Pro linux-image-oracle 4.15.0.1151.162~16.04.1 Available with Ubuntu Pro linux-image-virtual-hwe-16.04 4.15.0.247.259~16.04.1 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-8112-1 CVE-2021-47599, CVE-2022-48875, CVE-2022-49267, CVE-2024-47659, CVE-2024-49927, CVE-2024-56548, CVE-2024-56581, CVE-2024-56593, CVE-2025-21704, CVE-2025-40215
Attachment: signature.asc (type=application/pgp-signature)
-----BEGIN PGP SIGNATURE----- iQHZBAEBCgBDFiEEBcMY+nwS2CY71sUWc4vdAqvdlsYFAmm9H24lHGdpYW1wYW9s by5mcmVzaS5yb2dsaWFAY2Fub25pY2FsLmNvbQAKCRBzi90Cq92Wxm5EDACAr33a OM9voZvf3ncDgLh1421ZlEfu8swP7bIaZIIeZ2sXbIMe3PkUpdB6ID4Ea0vCcK66 K+j6GPMvHjKL46FerWF5EIRrbHzmQtEvSE35Rgj9HybZBpBN2QvP4VdPX+o5GL5S AyqNccLHfK9tfkZxUEprktyKAE9wGqWHZIPGkiCzRKfsddvbG2mGz4tp4YP/8ZZg 3u7uYt4J0nTulX0K6nhuebzBReQ6V/L/pJkI8cr+CBajdp9BzEi+LLDJpQGOh+Em Sn027ODocqzX2rYEqvca5FjxdN5XNtO5ZqwvHvevtMYeQFDtDzjTfOBoEEXAGyQ7 a3OgghBPj1ErWUU8QpMC77Fe8s1j1AQLzWMMUwrBbX5/hvL1d1tujd9WKv6eabH3 v/MG/MzcE1Nfzu+O2tBwczro8fdfhUonMbY9BdJv4gJKLGfvrVloiVDe+UQbzyjS OWwkRT4UXNXwm/9MICfmSdnR5kGHSFGfiNw8IgpfqGs21IxF/yWXro7i3/w= =+b9P -----END PGP SIGNATURE-----