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CVE-2025-21770

iommu: Fix potential memory leak in iopf_queue_remove_device() PUBLISHED

Description (CNA)

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.

Affected (CNA)

Vendor / productVersions
Linux / Linuxaffected 19911232713573a2ebea84a25bd4d71d024ed86b before db60d2d896a17decd58d143eef92cf22eb0a0176; affected 19911232713573a2ebea84a25bd4d71d024ed86b before 90d5429cd2921ca2714684ed525898d431bb9283; affected 19911232713573a2ebea84a25bd4d71d024ed86b before 9759ae2cee7cd42b95f1c48aa3749bd02b5ddb08
Linux / Linuxaffected 6.9; unaffected 0 before 6.9; unaffected 6.12.16 through 6.12.*; unaffected 6.13.4 through 6.13.*; unaffected 6.14 through *

CWE

No CWE identifiers supplied.

References

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.