USN-3107-2: Linux kernel (Raspberry Pi 2) vulnerability

Ubuntu Security Notice USN-3107-2

24th October, 2016

linux-raspi2 vulnerability

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

  • Ubuntu 16.10


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

Software description

  • linux-raspi2 – Linux kernel for Raspberry Pi 2


It was discovered that a race condition existed in the memory manager of
the Linux kernel when handling copy-on-write breakage of private read-only
memory mappings. A local attacker could use this to gain administrative

Update instructions

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

Ubuntu 16.10:
linux-image-4.8.0-1017-raspi2 4.8.0-1017.20

To update your system, please follow these instructions:

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.



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