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CVE-2026-31475

7.8 · HIGH

In the Linux kernel, the following vulnerability has been resolved: ASoC: sma1307: fix double free of devm_kzalloc() memory A previous change added NULL checks and cleanup for allocation failures…

Published Apr 22, 2026CWE-415EPSS 0.17%

Overview

CVE-2026-31475 is a high-severity vulnerability. It was published on April 22, 2026 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:

ASoC: sma1307: fix double free of devm_kzalloc() memory

A previous change added NULL checks and cleanup for allocation

failures in sma1307_setting_loaded().

However, the cleanup for mode_set entries is wrong. Those entries are

allocated with devm_kzalloc(), so they are device-managed resources and

must not be freed with kfree(). Manually freeing them in the error path

can lead to a double free when devres later releases the same memory.

Drop the manual kfree() loop and let devres handle the cleanup.

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/1a82c3272626db9006f4c2cad3adf2916417aed6Refgit.kernel.org/stable/c/d472d1a52985211b92883bb64bbe710b45980190Refgit.kernel.org/stable/c/fe757092d2329c397ecb32f2bf68a5b1c4bd9193

How CyberStrike helps

Frequently asked questions

What is CVE-2026-31475?

CVE-2026-31475 is a high-severity vulnerability. It was published on April 22, 2026 and has a CVSS 3.1 base score of 7.8 (HIGH).

How severe is CVE-2026-31475?

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-2026-31475?

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-2026-31475?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2026-31475 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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