Ubuntu 2640-2: Linux kernel regression
Summary
Update Instructions
The problem can be corrected by updating your system to the following package versions: Ubuntu 12.04 LTS: linux-image-3.2.0-86-generic 3.2.0-86.124 linux-image-3.2.0-86-generic-pae 3.2.0-86.124 linux-image-3.2.0-86-highbank 3.2.0-86.124 linux-image-3.2.0-86-omap 3.2.0-86.124 linux-image-3.2.0-86-powerpc-smp 3.2.0-86.124 linux-image-3.2.0-86-powerpc64-smp 3.2.0-86.124 linux-image-3.2.0-86-virtual 3.2.0-86.124 After a standard system update you need to reboot your computer to make all the necessary changes.
References
https://ubuntu.com/security/notices/USN-2640-2
https://ubuntu.com/security/notices/USN-2640-1
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1465998
Package Information
https://launchpad.net/ubuntu/+source/linux/3.2.0-86.124