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CVE-2022-49972

7.8 · HIGH

In the Linux kernel, the following vulnerability has been resolved: xsk: Fix corrupted packets for XDP_SHARED_UMEM Fix an issue in XDP_SHARED_UMEM mode together with aligned mode where packets ar…

Published Jun 18, 2025EPSS 0.22%

Overview

CVE-2022-49972 is a high-severity vulnerability. It was published on June 18, 2025 and has a CVSS 3.1 base score of 7.8 (HIGH).

This vulnerability has a CVSS 3.1 base score of 7.8, rated HIGH. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

Technical description

In the Linux kernel, the following vulnerability has been resolved:

xsk: Fix corrupted packets for XDP_SHARED_UMEM

Fix an issue in XDP_SHARED_UMEM mode together with aligned mode where

packets are corrupted for the second and any further sockets bound to

the same umem. In other words, this does not affect the first socket

bound to the umem. The culprit for this bug is that the initialization

of the DMA addresses for the pre-populated xsk buffer pool entries was

not performed for any socket but the first one bound to the umem. Only

the linear array of DMA addresses was populated. Fix this by populating

the DMA addresses in the xsk buffer pool for every socket bound to the

same umem.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

Refgit.kernel.org/stable/c/2c75891d56ab6fe5ba0d415bfad91d514a4027cdRefgit.kernel.org/stable/c/58ca14ed98c87cfe0d1408cc65a9745d9e9b7a56

How CyberStrike helps

Frequently asked questions

What is CVE-2022-49972?

CVE-2022-49972 is a high-severity vulnerability. It was published on June 18, 2025 and has a CVSS 3.1 base score of 7.8 (HIGH).

How severe is CVE-2022-49972?

This vulnerability has a CVSS 3.1 base score of 7.8, rated HIGH. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2022-49972?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2022-49972?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2022-49972 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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