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Vulnerability of Linux kernel: NULL pointer dereference via cluster/nodemanager.c

Synthesis of the vulnerability 

An attacker can force a NULL pointer to be dereferenced via cluster/nodemanager.c of the Linux kernel, in order to trigger a denial of service.
Vulnerable products: Debian, Linux, Ubuntu.
Severity of this weakness: 1/4.
Creation date: 06/03/2018.
Références of this bulletin: CERTFR-2018-AVI-462, CERTFR-2018-AVI-508, CVE-2017-18216, DLA-1369-1, DSA-4187-1, DSA-4188-1, USN-3776-1, USN-3776-2, USN-3798-1, USN-3798-2, VIGILANCE-VUL-25440.

Description of the vulnerability 

An attacker can force a NULL pointer to be dereferenced via cluster/nodemanager.c of the Linux kernel, in order to trigger a denial of service.
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This computer vulnerability impacts software or systems such as Debian, Linux, Ubuntu.

Our Vigil@nce team determined that the severity of this weakness bulletin is low.

The trust level is of type confirmed by the editor, with an origin of user shell.

An attacker with a expert ability can exploit this weakness.

Solutions for this threat 

Linux kernel: version 4.14.57.
The version 4.14.57 is fixed:
  https://cdn.kernel.org/pub/linux/kernel/v4.x/

Linux kernel: version 4.9.114.
The version 4.9.114 is fixed:
  https://cdn.kernel.org/pub/linux/kernel/v4.x/

Linux kernel: version 4.4.143.
The version 4.4.143 is fixed:
  https://cdn.kernel.org/pub/linux/kernel/v4.x/

Linux kernel: version 3.16.57.
The version 3.16.57 is fixed:
  https://cdn.kernel.org/pub/linux/kernel/v3.x/

Linux kernel: version 3.2.102.
The version 3.2.102 is fixed:
  https://cdn.kernel.org/pub/linux/kernel/v3.x/

Linux kernel: patch for cluster/nodemanager.c.
A patch is indicated in information sources.

Debian 7: new linux packages.
New packages are available:
  Debian 7: linux 3.2.101-1

Debian 8: new linux packages (02/05/2018).
New packages are available:
  Debian 8: linux 3.16.56-1

Debian 9: new linux packages.
New packages are available:
  Debian 9: linux 4.9.88-1

Ubuntu: new linux-image-3.13.0-161-generic packages.
New packages are available:
  Ubuntu 12.04 ESM: linux-image-3.13.0-161-generic 3.13.0-161.211~precise1
  Ubuntu 14.04 LTS: linux-image-3.13.0-161-generic 3.13.0-161.211

Ubuntu: new linux-image-4.4.0 packages.
New packages are available:
  Ubuntu 14.04 LTS: linux-image-generic-lts-xenial 4.4.0.137.117
  Ubuntu 16.04 LTS: linux-image-generic 4.4.0.137.143
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