CVE-2025-21770
MEDIUM EPSS 9.8%
Published Feb 27, 20251y ago · Modified Jun 17, 20262w ago
5.5 CVSS 3.1
Published Feb 27, 2025 1y ago
Last Modified Jun 17, 2026 2w ago
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.
CVSS Details
Base Score
Exploitability
Impact
Vector string
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H Attack Vector Local
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope Unchanged
Confidentiality None
Integrity None
Availability High
Threat Intelligence
EPSS Exploit Probability
9.8% percentile
Exploit & Patch Status
No Known Exploit
Patch Available
Weaknesses 1
CWE-401
Affected Products 4
References 3
- git.kernel.org https://git.kernel.org/stable/c/90d5429cd2921ca2714684ed525898d431bb9283
- git.kernel.org https://git.kernel.org/stable/c/9759ae2cee7cd42b95f1c48aa3749bd02b5ddb08
- git.kernel.org https://git.kernel.org/stable/c/db60d2d896a17decd58d143eef92cf22eb0a0176
Remediation
- git.kernel.org https://git.kernel.org/stable/c/90d5429cd2921ca2714684ed525898d431bb9283
- git.kernel.org https://git.kernel.org/stable/c/9759ae2cee7cd42b95f1c48aa3749bd02b5ddb08
- git.kernel.org https://git.kernel.org/stable/c/db60d2d896a17decd58d143eef92cf22eb0a0176