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CVE-2026-23256

5.5 · MEDIUM

In the Linux kernel, the following vulnerability has been resolved: net: liquidio: Fix off-by-one error in VF setup_nic_devices() cleanup In setup_nic_devices(), the initialization loop jumps to…

Published Mar 18, 2026CWE-193EPSS 0.12%

Overview

CVE-2026-23256 is a medium-severity vulnerability. It was published on March 18, 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: liquidio: Fix off-by-one error in VF setup_nic_devices() cleanup

In setup_nic_devices(), the initialization loop jumps to the label

setup_nic_dev_free on failure. The current cleanup loop while(i--)

skip the failing index i, causing a memory leak.

Fix this by changing the loop to iterate from the current index i

down to 0.

Compile tested only. Issue found using code review.

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/01fbca1e93ec3f39f76c31a8f9afa32ce00da48aRefgit.kernel.org/stable/c/3bf519e39b51cb08a93c0599870b35a23db1031eRefgit.kernel.org/stable/c/4640fa5ad5e1a0dbd1c2d22323b7d70a8107dcfdRefgit.kernel.org/stable/c/52b19b3a22306fe452ec9e8ff96063f4bfb77b99Refgit.kernel.org/stable/c/6cbba46934aefdfb5d171e0a95aec06c24f7ca30Refgit.kernel.org/stable/c/71a56b89203ec7e5670d94a61a9b4ae617eca804Refgit.kernel.org/stable/c/bd680e56e316be92c01568be98d85d7a6c9bd92c

How CyberStrike helps

Frequently asked questions

What is CVE-2026-23256?

CVE-2026-23256 is a medium-severity vulnerability. It was published on March 18, 2026 and has a CVSS 3.1 base score of 5.5 (MEDIUM).

How severe is CVE-2026-23256?

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-2026-23256?

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-2026-23256?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2026-23256 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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