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Vulnerability of Linux kernel: memory leak via __feat_register_sp

Synthesis of the vulnerability 

An attacker can create a memory leak via __feat_register_sp() of the Linux kernel, in order to trigger a denial of service.
Vulnerable software: Debian, Linux, openSUSE Leap, SUSE Linux Enterprise Desktop, SLES, Ubuntu.
Severity of this announce: 1/4.
Creation date: 31/12/2019.
Références of this computer vulnerability: CERTFR-2020-AVI-029, CERTFR-2020-AVI-096, CERTFR-2020-AVI-119, CERTFR-2020-AVI-123, CERTFR-2020-AVI-124, CERTFR-2020-AVI-130, CVE-2019-20096, DLA-2114-1, openSUSE-SU-2020:0336-1, SUSE-SU-2020:0093-1, SUSE-SU-2020:0511-1, SUSE-SU-2020:0559-1, SUSE-SU-2020:0560-1, SUSE-SU-2020:0580-1, SUSE-SU-2020:0599-1, USN-4285-1, USN-4286-1, USN-4286-2, USN-4287-1, USN-4287-2, VIGILANCE-VUL-31249.

Description of the vulnerability 

An attacker can create a memory leak via __feat_register_sp() of the Linux kernel, in order to trigger a denial of service.
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This threat note impacts software or systems such as Debian, Linux, openSUSE Leap, SUSE Linux Enterprise Desktop, SLES, Ubuntu.

Our Vigil@nce team determined that the severity of this cybersecurity note 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 vulnerability note.

Solutions for this threat 

Linux kernel: version 4.19.97.
The version 4.19.97 is fixed:
  https://cdn.kernel.org/pub/linux/kernel/v4.x/

Linux kernel: version 4.14.166.
The version 4.14.166 is fixed:
  https://cdn.kernel.org/pub/linux/kernel/v4.x/

Linux kernel: version 4.9.211.
The version 4.9.211 is fixed:
  https://cdn.kernel.org/pub/linux/kernel/v4.x/

Linux kernel: version 4.4.211.
The version 4.4.211 is fixed:
  https://cdn.kernel.org/pub/linux/kernel/v4.x/

Linux kernel: version 3.16.72.
The version 3.16.72 is fixed:
  https://cdn.kernel.org/pub/linux/kernel/v3.x/

Linux kernel: patch for __feat_register_sp.
A patch is indicated in information sources.

Debian 8: new linux-4.9 packages.
New packages are available:
  Debian 8: linux-4.9 4.9.210-1~deb8u1

openSUSE Leap 15.1: new kernel packages (13/03/2020).
New packages are available:
  openSUSE Leap 15.1: kernel 4.12.14-lp151.28.40.1

SUSE LE 12 SP4: new kernel-azure packages (03/03/2020).
New packages are available:
  SUSE LE 12 SP4: kernel-azure 4.12.14-6.37.1

SUSE LE 12 SP4: new kernel-rt packages.
New packages are available:
  SUSE LE 12 SP4: kernel-rt 4.12.14-8.12.1

SUSE LE 12 SP5: new kernel-azure packages (15/01/2020).
New packages are available:
  SUSE LE 12 SP5: kernel-azure 4.12.14-16.7.1

SUSE LE 12 SP5: new kernel packages (04/03/2020).
New packages are available:
  SUSE LE 12 SP5: kernel 4.12.14-122.17.1

SUSE LE 15 SP1: new kernel-azure packages (28/02/2020).
New packages are available:
  SUSE LE 15 SP1: kernel-azure 4.12.14-8.27.1

SUSE LE 15 SP1: new kernel packages (03/03/2020).
New packages are available:
  SUSE LE 15 SP1: kernel 4.12.14-197.34.1

Ubuntu 18.04: new linux-image-5.0.0 packages (19/02/2020).
New packages are available:
  Ubuntu 18.04 LTS: linux-image-azure 5.0.0.1032.43

Ubuntu: new linux-image-4.15.0 packages (19/02/2020).
New packages are available:
  Ubuntu 18.04 LTS: linux-image-generic 4.15.0.88.80
  Ubuntu 16.04 LTS: linux-image-generic-hwe-16.04 4.15.0.88.98
  Ubuntu 14.04 ESM: linux-image-azure 4.15.0.1069.55

Ubuntu: new linux-image-4.4.0 packages (19/02/2020).
New packages are available:
  Ubuntu 14.04 ESM: linux-image-generic-lts-xenial 4.4.0.174.153
  Ubuntu 16.04 LTS: linux-image-generic 4.4.0.174.182

Wind River Linux: version 10.17.41.20.
The version 10.17.41.20 is fixed:
  https://support2.windriver.com/
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