Go to homepageCyberStrike

Menu

Star on GitHub · 3.2k
Sign inDownload

CVE-2022-50226

5.5 · MEDIUM

In the Linux kernel, the following vulnerability has been resolved: crypto: ccp - Use kzalloc for sev ioctl interfaces to prevent kernel memory leak For some sev ioctl interfaces, input may be pa…

Published Jun 18, 2025CWE-401EPSS 0.23%

Overview

CVE-2022-50226 is a medium-severity vulnerability. It was published on June 18, 2025 and has a CVSS 3.1 base score of 5.5 (MEDIUM).

This vulnerability has a CVSS 3.1 base score of 5.5, rated MEDIUM. 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:

crypto: ccp - Use kzalloc for sev ioctl interfaces to prevent kernel memory leak

For some sev ioctl interfaces, input may be passed that is less than or

equal to SEV_FW_BLOB_MAX_SIZE, but larger than the data that PSP

firmware returns. In this case, kmalloc will allocate memory that is the

size of the input rather than the size of the data. Since PSP firmware

doesn't fully overwrite the buffer, the sev ioctl interfaces with the

issue may return uninitialized slab memory.

Currently, all of the ioctl interfaces in the ccp driver are safe, but

to prevent future problems, change all ioctl interfaces that allocate

memory with kmalloc to use kzalloc and memset the data buffer to zero

in sev_ioctl_do_platform_status.

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/13dc15a3f5fd7f884e4bfa8c011a0ae868df12aeRefgit.kernel.org/stable/c/4c5300f6f5e18b11c02a92f136e69b98fddba15eRefgit.kernel.org/stable/c/caa395aa16e7c9193fd7fa6cde462dd8229d4953Refgit.kernel.org/stable/c/e11fb0a3a39bb42da35fa662c46ce7391f277436Refgit.kernel.org/stable/c/f2a920daa780956b987c14b9f23de7c3c8915bf2

How CyberStrike helps

Frequently asked questions

What is CVE-2022-50226?

CVE-2022-50226 is a medium-severity vulnerability. It was published on June 18, 2025 and has a CVSS 3.1 base score of 5.5 (MEDIUM).

How severe is CVE-2022-50226?

This vulnerability has a CVSS 3.1 base score of 5.5, rated MEDIUM. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2022-50226?

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-2022-50226?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2022-50226 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.

Related MEDIUM CVEs from 2022

View all
Browse by year2026202520242023202220212020201920182017201620152014201320122011201020092008200720062005200420032002200120001999