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Vulnerability of Linux kernel: memory leak via komeda_wb_connector_add

Synthesis of the vulnerability 

An attacker can create a memory leak via komeda_wb_connector_add() of the Linux kernel, in order to trigger a denial of service.
Vulnerable products: Linux, Ubuntu.
Severity of this weakness: 1/4.
Creation date: 08/11/2019.
Références of this bulletin: CERTFR-2019-AVI-602, CVE-2019-18810, USN-4208-1, VIGILANCE-VUL-30816.

Description of the vulnerability 

An attacker can create a memory leak via komeda_wb_connector_add() of the Linux kernel, in order to trigger a denial of service.
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This weakness impacts software or systems such as Linux, Ubuntu.

Our Vigil@nce team determined that the severity of this vulnerability announce 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 threat bulletin.

Solutions for this threat 

Linux kernel: version 5.3.8.
The version 5.3.8 is fixed:
  https://cdn.kernel.org/pub/linux/kernel/v5.x/

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

Ubuntu: new linux-image-5.3.0 packages.
New packages are available:
  Ubuntu 18.04 LTS: linux-image-gcp-edge 5.3.0.1009.9
  Ubuntu 19.10: linux-image-generic 5.3.0.24.28
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Computer vulnerabilities tracking service 

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