[USN-3082-2] Linux kernel (OMAP4) vulnerability

Steve Beattie steve.beattie at canonical.com
Mon Sep 19 19:20:15 UTC 2016

Ubuntu Security Notice USN-3082-2
September 19, 2016

linux-ti-omap4 vulnerability

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

- Ubuntu 12.04 LTS


The system could be made to run programs as an administrator.

Software Description:
- linux-ti-omap4: Linux kernel for OMAP4


Chiachih Wu, Yuan-Tsung Lo, and Xuxian Jiang discovered that the legacy ABI
for ARM (OABI) had incomplete access checks for epoll_wait(2) and
semtimedop(2). A local attacker could use this to possibly execute
arbitrary code.

Update instructions:

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

Ubuntu 12.04 LTS:
  linux-image-3.2.0-1488-omap4    3.2.0-1488.115

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.


Package Information:

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