USN-2840-2: Linux kernel (OMAP4) vulnerability

Ubuntu Security Notice USN-2840-2

17th December, 2015

linux-ti-omap4 vulnerability

A security issue affects these releases of Ubuntu and its
derivatives:

• Ubuntu 12.04 LTS

Summary

The system could be made to crash under certain conditions.

Software description

• linux-ti-omap4
  - Linux kernel for OMAP4
  
  

Details

Dmitry Vyukov discovered that the Linux kernel's keyring handler attempted
to garbage collect incompletely instantiated keys. A local unprivileged
attacker could use this to cause a denial of service (system crash).

Update instructions

The problem can be corrected by updating your system to the following
package version:

Ubuntu 12.04 LTS:

To update your system, please follow these instructions: