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CVE-2022-49084

7.5 · HIGH

In the Linux kernel, the following vulnerability has been resolved: qede: confirm skb is allocated before using qede_build_skb() assumes build_skb() always works and goes straight to skb_reserve().

Published Feb 26, 2025CWE-476EPSS 0.67%

Overview

CVE-2022-49084 is a high-severity vulnerability. It was published on February 26, 2025 and has a CVSS 3.1 base score of 7.5 (HIGH).

This vulnerability has a CVSS 3.1 base score of 7.5, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical description

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

qede: confirm skb is allocated before using

qede_build_skb() assumes build_skb() always works and goes straight

to skb_reserve(). However, build_skb() can fail under memory pressure.

This results in a kernel panic because the skb to reserve is NULL.

Add a check in case build_skb() failed to allocate and return NULL.

The NULL return is handled correctly in callers to qede_build_skb().

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/034a92c6a81048128fc7b18d278d52438a13902aRefgit.kernel.org/stable/c/4e910dbe36508654a896d5735b318c0b88172570Refgit.kernel.org/stable/c/8928239e5e2e460d95b8a0b89f61671625e7ece0Refgit.kernel.org/stable/c/9648adb1b3ece55c657d3a4f52bfee663b710dfeRefgit.kernel.org/stable/c/b2d6b3db9d1cf80908964036dbe1c52a86b1afb1Refgit.kernel.org/stable/c/c9bdce2359b5f4986eb38d1e81865b3586cc20d2Refgit.kernel.org/stable/c/e1fd0c42acfa22bb34d2ab6a111484f466ab8093

How CyberStrike helps

Frequently asked questions

What is CVE-2022-49084?

CVE-2022-49084 is a high-severity vulnerability. It was published on February 26, 2025 and has a CVSS 3.1 base score of 7.5 (HIGH).

How severe is CVE-2022-49084?

This vulnerability has a CVSS 3.1 base score of 7.5, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2022-49084?

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-2022-49084?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2022-49084 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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