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CVE-2026-43328

7.8 · HIGH

In the Linux kernel, the following vulnerability has been resolved: cpufreq: governor: fix double free in cpufreq_dbs_governor_init() error path When kobject_init_and_add() fails, cpufreq_dbs_gov…

Published May 8, 2026CWE-415EPSS 0.18%

Overview

CVE-2026-43328 is a high-severity vulnerability. It was published on May 8, 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:

cpufreq: governor: fix double free in cpufreq_dbs_governor_init() error path

When kobject_init_and_add() fails, cpufreq_dbs_governor_init() calls

kobject_put(&dbs_data->attr_set.kobj).

The kobject release callback cpufreq_dbs_data_release() calls

gov->exit(dbs_data) and kfree(dbs_data), but the current error path

then calls gov->exit(dbs_data) and kfree(dbs_data) again, causing a

double free.

Keep the direct kfree(dbs_data) for the gov->init() failure path, but

after kobject_init_and_add() has been called, let kobject_put() handle

the cleanup through cpufreq_dbs_data_release().

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/019ea28629720c220daedf38107c8787f330dc05Refgit.kernel.org/stable/c/3bf9d023d2329a0e5379f2fd09d06ef09729cd9dRefgit.kernel.org/stable/c/427d048e4f6acbfa01b5a8062449fe0ee8987c0dRefgit.kernel.org/stable/c/4b9118e93d2499bb2808ef3742fa0ce06f4f8117Refgit.kernel.org/stable/c/56bc91ee78babe9578585a2bc137abc4b3115ff3Refgit.kernel.org/stable/c/6dcf9d0064ce2f3e3dfe5755f98b93abe6a98e1eRefgit.kernel.org/stable/c/d2703b4f8fb7cc6f0dfdb2dc2359cc46189e7357Refgit.kernel.org/stable/c/da39ee627fd82b52068d4d5f115749a8b7d271f9

How CyberStrike helps

Frequently asked questions

What is CVE-2026-43328?

CVE-2026-43328 is a high-severity vulnerability. It was published on May 8, 2026 and has a CVSS 3.1 base score of 7.8 (HIGH).

How severe is CVE-2026-43328?

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-2026-43328?

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-2026-43328?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2026-43328 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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