AUGUST 4, 2026
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Case File

CVE-2025-21770

MEDIUM · CVSS 5.5 EPSS 0.21%

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2025-02-27 · Last synced 2026-08-04

CyberRota Analysis

This is a medium severity vulnerability with a CVSS score of 5.5. It affects Linux.

CVE
CVE-2025-21770
Severity
MEDIUM
CVSS
5.5
EPSS
0.21%
Linux

Original NVD Description

In the Linux kernel, the following vulnerability has been resolved: iommu: Fix potential memory leak in iopf_queue_remove_device() The iopf_queue_remove_device() helper removes a device from the per-iommu iopf queue when PRI is disabled on the device. It responds to all outstanding iopf's with an IOMMU_PAGE_RESP_INVALID code and detaches the device from the queue. However, it fails to release the group structure that represents a group of iopf's awaiting for a response after responding to the hardware. This can cause a memory leak if iopf_queue_remove_device() is called with pending iopf's. Fix it by calling iopf_free_group() after the iopf group is responded.

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