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Vulnerability of Linux kernel: use after free via arc_emac_tx

Synthesis of the vulnerability 

An attacker can force the usage of a freed memory area via arc_emac_tx() of the Linux kernel, in order to trigger a denial of service, and possibly to run code.
Impacted systems: Linux, Slackware, SUSE Linux Enterprise Desktop, SLES, Ubuntu.
Severity of this alert: 2/4.
Creation date: 22/10/2019.
Références of this alert: CERTFR-2019-AVI-527, CERTFR-2019-AVI-561, CERTFR-2019-AVI-575, CVE-2016-10906, SSA:2019-311-01, SUSE-SU-2019:2949-1, SUSE-SU-2019:2950-1, SUSE-SU-2019:2984-1, USN-4163-1, USN-4163-2, VIGILANCE-VUL-30689.

Description of the vulnerability 

An attacker can force the usage of a freed memory area via arc_emac_tx() of the Linux kernel, in order to trigger a denial of service, and possibly to run code.
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This security weakness impacts software or systems such as Linux, Slackware, SUSE Linux Enterprise Desktop, SLES, Ubuntu.

Our Vigil@nce team determined that the severity of this threat bulletin is medium.

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 threat.

Solutions for this threat 

Linux kernel: version 4.4.191.
The version 4.4.191 is fixed:
  https://cdn.kernel.org/pub/linux/kernel/v4.x/

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

Slackware 14.2: new kernel packages.
New packages are available:
  Slackware 14.2: kernel 4.4.199-*-1

SUSE LE 12 SP1: new kernel packages (13/11/2019).
New packages are available:
  SUSE LE 12 SP1: kernel 3.12.74-60.64.124.1

SUSE LE 12 SP2: new kernel packages.
New packages are available:
  SUSE LE 12 SP2: kernel 4.4.121-92.125.1

SUSE LE 12 SP3: new kernel packages (13/11/2019).
New packages are available:
  SUSE LE 12 SP3: kernel 4.4.180-94.107.1

Ubuntu: new linux-image-4.4.0 packages.
New packages are available:
  Ubuntu 16.04 LTS: linux-image-generic 4.4.0.166.174
  Ubuntu 14.04 ESM: linux-image-aws 4.4.0.1056.57
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Computer vulnerabilities tracking service 

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