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CVE-2026-68176

In the Linux kernel, the following vulnerability has been resolved: tracing: Fix mmiotrace possible NULL dereferencing of hiter->dev If the mmio_pipe_open() fails to find a PCI device, the hiter-…

Published Aug 10, 2026EPSS 0.21%

Overview

CVE-2026-68176 is a known-severity vulnerability. It was published on August 10, 2026.

Technical description

In the Linux kernel, the following vulnerability has been resolved:

tracing: Fix mmiotrace possible NULL dereferencing of hiter->dev

If the mmio_pipe_open() fails to find a PCI device, the hiter->dev

will be assigned to NULL. The mmiotrace read() function dereferences the

hiter->dev if hiter exists.

Change the test of the read to not only check hiter being NULL, but also

the hiter->dev before dereferencing it.

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/0d5aaf91a3d05f7f993401af27872a5fc0f26edcRefgit.kernel.org/stable/c/144f29e85702234b23d2a62abf723e6a17eb5427Refgit.kernel.org/stable/c/201a01102c529772168181190cb084471082cf5cRefgit.kernel.org/stable/c/3635a9e8b453e658a49b39d025f35bbc6e58d0e2Refgit.kernel.org/stable/c/724cd84b0546c07806840fa658714488553d13a2Refgit.kernel.org/stable/c/8464427e1c177809a9488a97dfa2807d9dcf323bRefgit.kernel.org/stable/c/c06470320f8156306986a831010cdc9f9f87cb50Refgit.kernel.org/stable/c/faaf95135184208ee3ac6f33175c8d1800669dfc

How CyberStrike helps

Frequently asked questions

What is CVE-2026-68176?

CVE-2026-68176 is a known-severity vulnerability. It was published on August 10, 2026.

How severe is CVE-2026-68176?

CVSS score information is not yet available for this vulnerability. Check back as the CVE record is updated by NVD analysts.

How do I fix or remediate CVE-2026-68176?

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-2026-68176?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2026-68176 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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