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CVE-2022-49212

5.5 · MEDIUM

In the Linux kernel, the following vulnerability has been resolved: mtd: rawnand: atmel: fix refcount issue in atmel_nand_controller_init The reference counting issue happens in several error han…

Published Feb 26, 2025EPSS 0.27%

Overview

CVE-2022-49212 is a medium-severity vulnerability. It was published on February 26, 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:

mtd: rawnand: atmel: fix refcount issue in atmel_nand_controller_init

The reference counting issue happens in several error handling paths

on a refcounted object "nc->dmac". In these paths, the function simply

returns the error code, forgetting to balance the reference count of

"nc->dmac", increased earlier by dma_request_channel(), which may

cause refcount leaks.

Fix it by decrementing the refcount of specific object in those error

paths.

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/0856bf27057561f42b37df111603cf5a0d040294Refgit.kernel.org/stable/c/8baea2b96fa90af8d0f937caf4cf2105ee094d93Refgit.kernel.org/stable/c/9843c9c98f26c6ad843260b19bfdaa2598f2ae1eRefgit.kernel.org/stable/c/9b08d211db4c447eb1a07df65e45e0aa772e0fa6Refgit.kernel.org/stable/c/a3587259ae553e41d1ce8c7435351a5d6b299a11Refgit.kernel.org/stable/c/f1694169f3674cdf7553aed06864254635679878Refgit.kernel.org/stable/c/fe0e2ce5c87e9c0b9485ff566362030aa55972cfRefgit.kernel.org/stable/c/fecbd4a317c95d73c849648c406bcf1b6a0ec1cf

How CyberStrike helps

Frequently asked questions

What is CVE-2022-49212?

CVE-2022-49212 is a medium-severity vulnerability. It was published on February 26, 2025 and has a CVSS 3.1 base score of 5.5 (MEDIUM).

How severe is CVE-2022-49212?

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-2022-49212?

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-2022-49212?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2022-49212 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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