UBUNTU-CVE-2025-21770
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.
02 / AFFECTED SOFTWARE
Affected packages
29 explicit affected versions
10 explicit affected versions
11 explicit affected versions
1 explicit affected versions
7 explicit affected versions
37 explicit affected versions
26 explicit affected versions
4 explicit affected versions
37 explicit affected versions
10 explicit affected versions
10 explicit affected versions
13 explicit affected versions
13 explicit affected versions
78 explicit affected versions
45 explicit affected versions
8 explicit affected versions
4 explicit affected versions
8 explicit affected versions
19 explicit affected versions
23 explicit affected versions
7 explicit affected versions
10 explicit affected versions
3 explicit affected versions
33 explicit affected versions
16 explicit affected versions
13 explicit affected versions
6 explicit affected versions
12 explicit affected versions
38 explicit affected versions
51 explicit affected versions
13 explicit affected versions
10 explicit affected versions
13 explicit affected versions
10 explicit affected versions
13 explicit affected versions
1 explicit affected versions
10 explicit affected versions
10 explicit affected versions
10 explicit affected versions
1 explicit affected versions
8 explicit affected versions
13 explicit affected versions
21 explicit affected versions
13 explicit affected versions
12 explicit affected versions
7 explicit affected versions
14 explicit affected versions
12 explicit affected versions
26 explicit affected versions
23 explicit affected versions
14 explicit affected versions
5 explicit affected versions
5 explicit affected versions
3 explicit affected versions
26 explicit affected versions
12 explicit affected versions
44 explicit affected versions
4 explicit affected versions
4 explicit affected versions
4 explicit affected versions
16 explicit affected versions
9 explicit affected versions
12 explicit affected versions
11 explicit affected versions
4 explicit affected versions
13 explicit affected versions
7 explicit affected versions
13 explicit affected versions
7 explicit affected versions
14 explicit affected versions
18 explicit affected versions
3 explicit affected versions
16 explicit affected versions
43 explicit affected versions
35 explicit affected versions
12 explicit affected versions
13 explicit affected versions
6 explicit affected versions
12 explicit affected versions
50 explicit affected versions
11 explicit affected versions
12 explicit affected versions
27 explicit affected versions
12 explicit affected versions
7 explicit affected versions
03 / CONNECTIONS
Connected vulnerabilities
04 / EVIDENCE
Source records
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.
05 / REFERENCES
Further evidence
- https://git.kernel.org/linus/9759ae2cee7cd42b95f1c48aa3749bd02b5ddb08
- https://git.kernel.org/stable/c/90d5429cd2921ca2714684ed525898d431bb9283
- https://git.kernel.org/stable/c/9759ae2cee7cd42b95f1c48aa3749bd02b5ddb08
- https://git.kernel.org/stable/c/db60d2d896a17decd58d143eef92cf22eb0a0176
- https://ubuntu.com/security/CVE-2025-21770
- https://ubuntu.com/security/notices/USN-7521-1
- https://ubuntu.com/security/notices/USN-7521-2
- https://ubuntu.com/security/notices/USN-7521-3
- https://www.cve.org/CVERecord?id=CVE-2025-21770