--- title: 'USN-3097-1: Linux kernel vulnerabilities | Ubuntu security notices' description: Ubuntu is an open source software operating system that runs from the desktop, to the cloud, to all your internet connected things. url: https://ubuntu.com/security/notices/USN-3097-1 --- 1. [Ubuntu Security Notices](https://ubuntu.com/security/notices) 2. USN-3097-1 --- # USN-3097-1: Linux kernel vulnerabilities Publication date 11 October 2016 Overview Several security issues were fixed in the kernel. Releases [12.04](https://ubuntu.com/security/notices?release=precise) --- Open side navigation ## Packages * [linux](https://ubuntu.com/security/cves?package=linux) - Linux kernel ## Details Marco Grassi discovered a use-after-free condition could occur in the TCP retransmit queue handling code in the Linux kernel. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. ([CVE-2016-6828](https://ubuntu.com/security/CVE-2016-6828)) Pengfei Wang discovered a race condition in the audit subsystem in the Linux kernel. A local attacker could use this to corrupt audit logs or disrupt system-call auditing. ([CVE-2016-6136](https://ubuntu.com/security/CVE-2016-6136)) Pengfei Wang discovered a race condition in the Adaptec AAC RAID controller driver in the Linux kernel when handling ioctl()s. A local attacker could use this to cause a denial of service (system crash). ([CVE-2016-6480](https://ubuntu.com/security/CVE-2016-6480)) ## Update instructions After a standard system update you need to reboot your computer to make all the necessary changes. [Learn more about how to get the fixes.](https://ubuntu.com/security/cves/about#security) 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. The problem can be corrected by updating your system to the following package versions: | Ubuntu Release | Package Version | | --- | --- | | 12.04 precise | [linux-image-3.2.0-111-virtual](https://launchpad.net/ubuntu/+source/linux) –  [3.2.0-111.153](https://launchpad.net/ubuntu/+source/linux/3.2.0-111.153) | | | | [linux-image-3.2.0-111-generic-pae](https://launchpad.net/ubuntu/+source/linux) –  [3.2.0-111.153](https://launchpad.net/ubuntu/+source/linux/3.2.0-111.153) | | | | [linux-image-3.2.0-111-highbank](https://launchpad.net/ubuntu/+source/linux) –  [3.2.0-111.153](https://launchpad.net/ubuntu/+source/linux/3.2.0-111.153) | | | | [linux-image-3.2.0-111-powerpc-smp](https://launchpad.net/ubuntu/+source/linux) –  [3.2.0-111.153](https://launchpad.net/ubuntu/+source/linux/3.2.0-111.153) | | | | [linux-image-3.2.0-111-omap](https://launchpad.net/ubuntu/+source/linux) –  [3.2.0-111.153](https://launchpad.net/ubuntu/+source/linux/3.2.0-111.153) | | | | [linux-image-3.2.0-111-powerpc64-smp](https://launchpad.net/ubuntu/+source/linux) –  [3.2.0-111.153](https://launchpad.net/ubuntu/+source/linux/3.2.0-111.153) | | | | [linux-image-3.2.0-111-generic](https://launchpad.net/ubuntu/+source/linux) –  [3.2.0-111.153](https://launchpad.net/ubuntu/+source/linux/3.2.0-111.153) | | | --- ### Reduce your security exposure Ubuntu Pro provides ten-year security coverage to 25,000+ packages in Main and Universe repositories, and it is free for up to five machines. [Get Ubuntu Pro](https://ubuntu.com/pro) ## References * [CVE-2016-6828](https://ubuntu.com/security/CVE-2016-6828) * [CVE-2016-6480](https://ubuntu.com/security/CVE-2016-6480) * [CVE-2016-6136](https://ubuntu.com/security/CVE-2016-6136) ## Related notices * [USN-3099-3](https://ubuntu.com/security/notices/USN-3099-3) * [USN-3099-1](https://ubuntu.com/security/notices/USN-3099-1) * [USN-3099-4](https://ubuntu.com/security/notices/USN-3099-4) * [USN-3099-2](https://ubuntu.com/security/notices/USN-3099-2) * [USN-3098-2](https://ubuntu.com/security/notices/USN-3098-2) * [USN-3098-1](https://ubuntu.com/security/notices/USN-3098-1) * [USN-3097-2](https://ubuntu.com/security/notices/USN-3097-2) * [USN-3084-3](https://ubuntu.com/security/notices/USN-3084-3) * [USN-3084-1](https://ubuntu.com/security/notices/USN-3084-1) * [USN-3084-4](https://ubuntu.com/security/notices/USN-3084-4) --- Show 1 more references --- Have additional questions? [Talk to a member of the team ›](https://wiki.ubuntu.com/SecurityTeam/FAQ?_ga=2.242131138.1744859116.1742138161-1500419473.1726851136&_gl=1*161muja*_gcl_au*MzUyMTIzNjI1LjE3MzYyNDQ4NTE.#Contact)