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CVE-2026-80680

7.8 · HIGH

In the Linux kernel, the following vulnerability has been resolved: i2c: amd-mp2: Unregister callback on adapter add failure amd_mp2_register_cb() stores the platform I2C context in the MP2 PCI d…

Published Aug 28, 2026EPSS 0.18%

Overview

CVE-2026-80680 is a high-severity vulnerability. It was published on August 28, 2026 and has a CVSS 3.1 base score of 7.8 (HIGH).

This vulnerability has a CVSS 3.1 base score of 7.8, rated HIGH. 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:

i2c: amd-mp2: Unregister callback on adapter add failure

amd_mp2_register_cb() stores the platform I2C context in the MP2 PCI

driver's callback table before the adapter is registered. If

i2c_add_adapter() fails, probe returns and devres frees the context,

but the PCI driver can still dereference the stale pointer from its IRQ

and system-sleep callbacks.

Unregister the callback before returning the adapter registration error.

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/1883a09a37fed497b9efacf736c23624a472246bRefgit.kernel.org/stable/c/2f7789b3a9628819ebf90bcba8f9da3c139f8687Refgit.kernel.org/stable/c/4786d4d70dcd1e6b7e044f2348e00f201947b69cRefgit.kernel.org/stable/c/82048795242f04275a3f49ffc66ad851b6120954Refgit.kernel.org/stable/c/8bf719659406e4a1b56d441e0c7da2085d891d96Refgit.kernel.org/stable/c/9142a3dcff0d80a3a24ce159aee19ddc869d9784Refgit.kernel.org/stable/c/b7c2c5c8868737926410b93d1223ada17625ead3Refgit.kernel.org/stable/c/cf107c5983dc70fcf932a305581a5f976d908ff1

How CyberStrike helps

Frequently asked questions

What is CVE-2026-80680?

CVE-2026-80680 is a high-severity vulnerability. It was published on August 28, 2026 and has a CVSS 3.1 base score of 7.8 (HIGH).

How severe is CVE-2026-80680?

This vulnerability has a CVSS 3.1 base score of 7.8, rated HIGH. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2026-80680?

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-2026-80680?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2026-80680 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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