Ubuntu 14.04 LTS Linux Kernel Medium Security Threat Advisory USN-8634

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Several security issues were fixed in the Linux kernel. Software Description: - linux: Linux 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; - Cryptographic API; - InfiniBand drivers; - Media drivers; - STMicroelectronics network drivers; - Network drivers; - Ext4 file system; - IPv4 networking; - TCP network protocol; - Locking primitives; - B.A.T.M.A.N. meshing protocol; - Ceph Core library; - IPv6 networking; - Multipath TCP; - Netfilter; - SCTP protocol; - SMC sockets; (CVE-2026-31405, CVE-2026-31414, CVE-2026-31448, CVE-2026-31649, CVE-2026-31659, CVE-2026-31685, CVE-2026-43198, CVE-2026-43493, CVE-2026-43499, CVE-2026-46266, CVE-2026-52955, CVE-2026-52982, CVE-2026-52986, CVE-2026-53176, CVE-2026-53225, CVE-2026-53359)

Several security issues were fixed in the Linux kernel.

Software Description:

- linux: Linux kernel

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:

- InfiniBand drivers;

- STMicroelectronics network drivers;

- TCP network protocol;

- Locking primitives;

- B.A.T.M.A.N. meshing protocol;

(CVE-2026-31405, CVE-2026-31414, CVE-2026-31448, CVE-2026-31649,

CVE-2026-31659, CVE-2026-31685, CVE-2026-43198, CVE-2026-43493,

CVE-2026-43499, CVE-2026-46266, CVE-2026-52955, CVE-2026-52982,

CVE-2026-52986, CVE-2026-53176, CVE-2026-53225, CVE-2026-53359)

The problem can be corrected by updating your system to the following package versions: Ubuntu 14.04 LTS linux-image-3.13.0-215-generic 3.13.0-215.266 Available with Ubuntu Pro linux-image-3.13.0-215-lowlatency 3.13.0-215.266 Available with Ubuntu Pro linux-image-generic 3.13.0.215.225 Available with Ubuntu Pro linux-image-generic-lts-trusty 3.13.0.215.225 Available with Ubuntu Pro linux-image-lowlatency 3.13.0.215.225 Available with Ubuntu Pro linux-image-server 3.13.0.215.225 Available with Ubuntu Pro linux-image-virtual 3.13.0.215.225 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.

CVE-2026-31405, CVE-2026-31414, CVE-2026-31448, CVE-2026-31649,

CVE-2026-31659, CVE-2026-31685, CVE-2026-43198, CVE-2026-43493,

CVE-2026-43499, CVE-2026-46266, CVE-2026-52955, CVE-2026-52982,

CVE-2026-52986, CVE-2026-53176, CVE-2026-53225, CVE-2026-53359

Ubuntu Security Notice USN-8634-1

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