What’s Vulnerable › Vulnerabilities

CVE-2022-3344

• Severity: medium (CVSS 5.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2022-10-25 · updated 2026-06-17
• Weakness: CWE-440

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).

Affected products

• Linux kernel: through 6.0.3

References

• https://bugzilla.redhat.com/show_bug.cgi?id=2130278
• https://lore.kernel.org/lkml/20221020093055.224317-5-mlevitsk%40redhat.com/T/
• https://bugzilla.redhat.com/show_bug.cgi?id=2130278
• https://lore.kernel.org/lkml/20221020093055.224317-5-mlevitsk%40redhat.com/T/

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