CVE-2026-80687
Overview
CVE-2026-80687 is a known-severity vulnerability. It was published on August 28, 2026.
Technical Description
In the Linux kernel, the following vulnerability has been resolved:
iommufd/viommu: Release the igroup lock on the vdevice_size error path
iommufd_vdevice_alloc_ioctl() takes idev->igroup->lock, then validates the
driver's vdevice_size against the core structure size with a WARN_ON_ONCE.
On failure that guard jumps to out_put_idev, below out_unlock_igroup, so it
skips the mutex_unlock(), leaving the igroup lock held and deadlocking the
next vDEVICE operation on that group.
Jump to out_unlock_igroup instead.
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.
Frequently Asked Questions
What is CVE-2026-80687?
CVE-2026-80687 is a known-severity vulnerability. It was published on August 28, 2026.
How severe is CVE-2026-80687?
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-2026-80687?
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-2026-80687?
CyberStrike's AI-powered security agents can automatically detect CVE-2026-80687 across your infrastructure using autonomous pentesting, DAST scanning, and HackBrowser. The platform continuously monitors for known vulnerabilities and provides actionable remediation guidance prioritized by real-world exploitability.
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