CVE-2022-3344 Denial of service in Linux kernel

What is CVE-2022-3344?

CVE-2022-3344 is a medium-severity denial of service vulnerability in Linux kernel, published on 24 Oct 2022. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

A flaw was found in the KVM's AMD nested virtualization (SVM). A malicious L1 guest could purposely fail to intercept the shutdown of a cooperative nested guest (L2), possibly leading to a page fault and kernel panic in the host (L0).

Weakness: CWE-440

Which versions are affected by CVE-2022-3344?

It affects 1 product.

Products include Linux kernel.

How do I fix CVE-2022-3344?

Apply the vendor's patch.

Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.

Is CVE-2022-3344 being exploited?

There is no known exploitation of CVE-2022-3344 in the wild and no public exploit code.

Other vulnerabilities in Linux kernel

• CVE-2026-53266 Linux Kernel Out-of-Bounds Write Exploited High 8.8
• CVE-2013-6282 Linux Kernel Improper Input Validation Exploited High 8.8
• CVE-2022-0185 Linux Kernel Heap-Based Buffer Overflow Exploited High 8.4
• CVE-2013-2094 Linux Kernel Privilege Escalation Exploited High 8.4
• CVE-2026-53362 Linux Kernel Unspecified Exploited High 7.8

All Linux kernel vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as AZL-11352, DEBIAN-CVE-2022-3344, GHSA-xmj6-5q7j-j6gg, ROOT-OS-DEBIAN-11-CVE-2022-3344, UBUNTU-CVE-2022-3344.