CVE-2026-80620

Name of the Vulnerable Software and Affected Versions Linux kernel (affected versions not specified)

Description An issue exists where the iounmap() function is called a second time with a NULL pointer. This occurs during the error path of the msix capability init() function when msix setup interrupts() fails. The failure triggers a cleanup process via pci free msi irqs(), which unmaps the dev->msix base region and sets it to NULL. Subsequently, a goto out unmap instruction attempts to call iounmap() again on the already NULL dev->msix base variable, leading to a system warning.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.