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CVE-2026-53324

5.5 · MEDIUM

In the Linux kernel, the following vulnerability has been resolved: net: mana: Use pci_name() for debugfs directory naming Use pci_name(pdev) for the per-device debugfs directory instead of hardc…

Published Jun 26, 2026CWE-476EPSS 0.16%

Overview

CVE-2026-53324 is a medium-severity vulnerability. It was published on June 26, 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:

net: mana: Use pci_name() for debugfs directory naming

Use pci_name(pdev) for the per-device debugfs directory instead of

hardcoded "0" for PFs and pci_slot_name(pdev->slot) for VFs. The

previous approach had two issues:

1. pci_slot_name() dereferences pdev->slot, which can be NULL for VFs

in environments like generic VFIO passthrough or nested KVM,

causing a NULL pointer dereference.

2. Multiple PFs would all use "0", and VFs across different PCI

domains or buses could share the same slot name, leading to

-EEXIST errors from debugfs_create_dir().

pci_name(pdev) returns the unique BDF address, is always valid, and is

unique across the system.

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/34dbd7b819544c99c9d96b400fe4db613f40ac4bRefgit.kernel.org/stable/c/9211eb97e8f8c28bf9313ab97862d143dbbbef97Refgit.kernel.org/stable/c/c116f07ab9d22bb6f355f3cf9e44c1e6a47fe559

How CyberStrike helps

Frequently asked questions

What is CVE-2026-53324?

CVE-2026-53324 is a medium-severity vulnerability. It was published on June 26, 2026 and has a CVSS 3.1 base score of 5.5 (MEDIUM).

How severe is CVE-2026-53324?

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-2026-53324?

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-2026-53324?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2026-53324 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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