What is GHSA-77qc-mwxr-7854?

GHSA-77qc-mwxr-7854 is a security advisory published by GitHub Security Advisories with High severity. Improper exception handling in IOMMU could allow an invalidate command to be sent to PCIe devices...

Which CVE IDs does GHSA-77qc-mwxr-7854 cover?

GHSA-77qc-mwxr-7854 covers the following CVE IDs: CVE-2024-21954. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

GHSA-77qc-mwxr-7854High

Improper exception handling in IOMMU could allow an invalidate command to be sent to PCIe devices...

Vendor

GitHub Security Advisories

Published

November 12, 2026

Last Modified

November 12, 2026

🔗 CVE IDs covered (1)

CVE-2024-21954 →

📋 Description

Improper exception handling in IOMMU could allow an invalidate command to be sent to PCIe devices that do not support Address Translation Cache (ATC), potentially resulting in denial of service.

🔗 References (3)

https://nvd.nist.gov/vuln/detail/CVE-2024-21954
https://www.amd.com/en/resources/product-security/bulletin/AMD-SB-3052.html
https://github.com/advisories/GHSA-77qc-mwxr-7854