CVE-2025-21770

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

Description A memory leak issue has been identified in the Linux kernel, specifically in the iopf queue remove device() function. This function is responsible for removing a device from the per-iommu iopf queue when PRI is disabled on the device. However, it fails to release the group structure that represents a group of iopf's awaiting a response after responding to the hardware, potentially causing a memory leak if iopf queue remove device() is called with pending iopf's.

Recommendations To resolve this issue, call iopf free group() after the iopf group is responded to, ensuring the proper release of the group structure and preventing potential memory leaks.