Linux · Linux Kernel · 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.