CVE-2026-80680 (CVSS 7.8)

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.

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CVSS v3.1 Score

7.8

HIGH

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

EPSS — Exploit Prediction

0.0013

Probability of exploitation

0.03%

Percentile rank

EPSS estimates the probability that this vulnerability will be exploited in the wild within the next 30 days. A higher score means more likely to be exploited.

References

Other References

https://git.kernel.org/stable/c/1883a09a37fed497b9efacf736c23624a472246b https://git.kernel.org/stable/c/2f7789b3a9628819ebf90bcba8f9da3c139f8687 https://git.kernel.org/stable/c/4786d4d70dcd1e6b7e044f2348e00f201947b69c https://git.kernel.org/stable/c/82048795242f04275a3f49ffc66ad851b6120954 https://git.kernel.org/stable/c/8bf719659406e4a1b56d441e0c7da2085d891d96 https://git.kernel.org/stable/c/9142a3dcff0d80a3a24ce159aee19ddc869d9784 https://git.kernel.org/stable/c/b7c2c5c8868737926410b93d1223ada17625ead3 https://git.kernel.org/stable/c/cf107c5983dc70fcf932a305581a5f976d908ff1

Frequently Asked Questions

What is CVE-2026-80680? +

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. It has a CVSS v3.1 base score of 7.8 (HIGH).

How severe is CVE-2026-80680? +

CVE-2026-80680 has a CVSS v3.1 score of 7.8 out of 10, rated HIGH. This is a high-severity vulnerability that should be prioritized for patching. The EPSS score is 0.0013, placing it in the 0th percentile for exploitation probability.

How do I check if I'm vulnerable to CVE-2026-80680? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

CVE-2026-80680