Canonical announced that a regression has been found in the Linux kernel packages, this time affecting the OMAP4 kernel of the Ubuntu 12.04 (Precise Pangolin) operating system.
A few vulnerabilities were fixed in the Linux kernel but a regression was identified. Due to an unrelated regression, inotify/fanotify stopped working after upgrading. This update
repairs this problem the problem.
A complete description of the vulnerabilities can be found in the Ubuntu Security Notice.