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Vulnerability of Linux kernel: memory leak via svm_cpu_init

Synthesis of the vulnerability 

An attacker can create a memory leak via svm_cpu_init() of the Linux kernel, in order to trigger a denial of service.
Vulnerable systems: Linux.
Severity of this threat: 1/4.
Creation date: 11/05/2020.
Références of this weakness: CVE-2020-12768, VIGILANCE-VUL-32222.

Description of the vulnerability 

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

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

Solutions for this threat 

Linux kernel: version 5.4.43.
The version 5.4.43 is fixed:
  https://cdn.kernel.org/pub/linux/kernel/v5.x/linux-5.4.43.tar.xz

Linux kernel: version 4.19.125.
The version 4.19.125 is fixed:
  https://cdn.kernel.org/pub/linux/kernel/v4.x/linux-4.19.125.tar.xz

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

Wind River Linux: version 10.19.45.8.
The version 10.19.45.8 is fixed.
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Computer vulnerabilities tracking service 

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