CVE-2022-0171 A flaw was found in the Linux kernel

An attacker can exploit this flaw to cause a denial of service (DoS) by creating a VM instance that triggers SEV instruction exception, resulting in a host CPU halt.
This flaw can be exploited when a host user launches an application with a specific condition that causes the SEV instruction to be triggered. It can be done by running an application on a SEV-enabled AMD CPU that has a specific condition that causes the SEV instruction to be triggered.
The flaw can be exploited only by non-root users via non-standard applications with specific conditions that trigger the SEV instruction to be executed. An attacker needs to run a non-standard application on a SEV-enabled AMD CPU that has a specific condition that causes the SEV instruction to be executed. An attacker can exploit this issue by running a non-standard application on a SEV-enabled AMD CPU that has a specific condition that causes the SEV instruction to be executed. This issue can be exploited by non-root users via non-standard applications with specific conditions that trigger the SEV instruction to be executed.  Users who are familiar with AMD CPUs can exploit this issue by running a non-standard application on a SEV-enabled AMD CPU that has a specific condition that causes the SEV instruction to be executed. This issue can be exploited only via non-standard applications with specific conditions that trigger the SEV instruction to be executed.

Vulnerability Scenario

An attacker can exploit this issue by running a non-standard application on a SEV-enabled AMD CPU that has a specific condition that causes the SEV instruction to be executed. This issue can be exploited only via non-standard applications with specific conditions that trigger the SEV instruction to be executed.
A user who is familiar with AMD CPUs can exploit this issue by running a non-standard application on a SEV-enabled AMD CPU that has a specific condition that causes the SEV instruction to be executed.

References

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