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CVE-2026-64147

5.5 · MEDIUM

In the Linux kernel, the following vulnerability has been resolved: pds_core: fix debugfs_lookup dentry leak and error handling debugfs_lookup() returns a dentry with an elevated reference count…

Published Jul 19, 2026CWE-401EPSS 0.13%

Overview

CVE-2026-64147 is a medium-severity vulnerability. It was published on July 19, 2026 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:

pds_core: fix debugfs_lookup dentry leak and error handling

debugfs_lookup() returns a dentry with an elevated reference count that

must be released with dput(). The current code discards the returned

dentry without calling dput(), causing a reference leak on every

firmware reset recovery.

Additionally, when CONFIG_DEBUG_FS is disabled, debugfs_lookup()

returns ERR_PTR(-ENODEV), not NULL. The current check passes for error

pointers and would call dput() on an invalid pointer, causing a crash.

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/26e19622c485e53c3fdb299e822068a0542ddf0cRefgit.kernel.org/stable/c/60ef1675b652e912f3eb064767af4432393291fdRefgit.kernel.org/stable/c/91d13e92b983e6c6d7631012c2e20ae8057de9f2Refgit.kernel.org/stable/c/d7f4dd4c8fb380898fef7a77d48fce7ccdb4fc32Refgit.kernel.org/stable/c/dc416e32baaeb620b9809e9e25fc7b30889686e9

How CyberStrike helps

Frequently asked questions

What is CVE-2026-64147?

CVE-2026-64147 is a medium-severity vulnerability. It was published on July 19, 2026 and has a CVSS 3.1 base score of 5.5 (MEDIUM).

How severe is CVE-2026-64147?

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-2026-64147?

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-2026-64147?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2026-64147 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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