CVE-2026-64291

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

Description An issue exists in the iommufd veventq alloc() function where it accepts any non-zero veventq depth from userspace, with an upper bound set at U32 MAX. This allows userspace to allocate excessively large queues, which can lead to the exhaustion of kernel memory reserves.

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