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CVE-2026-23164

5.5 · MEDIUM

In the Linux kernel, the following vulnerability has been resolved: rocker: fix memory leak in rocker_world_port_post_fini() In rocker_world_port_pre_init(), rocker_port->wpriv is allocated with…

Published Feb 14, 2026CWE-401EPSS 0.13%

Overview

CVE-2026-23164 is a medium-severity vulnerability. It was published on February 14, 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:

rocker: fix memory leak in rocker_world_port_post_fini()

In rocker_world_port_pre_init(), rocker_port->wpriv is allocated with

kzalloc(wops->port_priv_size, GFP_KERNEL). However, in

rocker_world_port_post_fini(), the memory is only freed when

wops->port_post_fini callback is set:

if (!wops->port_post_fini)

return;

wops->port_post_fini(rocker_port);

kfree(rocker_port->wpriv);

Since rocker_ofdpa_ops does not implement port_post_fini callback

(it is NULL), the wpriv memory allocated for each port is never freed

when ports are removed. This leads to a memory leak of

sizeof(struct ofdpa_port) bytes per port on every device removal.

Fix this by always calling kfree(rocker_port->wpriv) regardless of

whether the port_post_fini callback exists.

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/2a3a64d75d2d0727da285749476761ebcad557a3Refgit.kernel.org/stable/c/8ce2e85889939c02740b4245301aa5c35fc94887Refgit.kernel.org/stable/c/8d7ba71e46216b8657a82ca2ec118bc93812a4d0Refgit.kernel.org/stable/c/b11e6f926480ab0939fec44781f28558c54be4e7Refgit.kernel.org/stable/c/d448bf96889f1905e740c554780f5c9fa0440566Refgit.kernel.org/stable/c/d8723917efda3b4f4c3de78d1ec1e1af015c0be1Refgit.kernel.org/stable/c/dce375f4afc348c310d171abcde7ec1499a4c26a

How CyberStrike helps

Frequently asked questions

What is CVE-2026-23164?

CVE-2026-23164 is a medium-severity vulnerability. It was published on February 14, 2026 and has a CVSS 3.1 base score of 5.5 (MEDIUM).

How severe is CVE-2026-23164?

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-2026-23164?

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-2026-23164?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2026-23164 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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