CVE-2023-54043

In the Linux kernel, the following vulnerability has been resolved: iommufd: Do not add the same hwpt to the ioas->hwpt_list twice The hwpt is added to the hwpt_list only during its creation, it is never added again. This hunk is some missed leftover from rework. Adding it twice will corrupt the linked list in some cases. It effects HWPT specific attachment, which is something the test suite cannot cover until we can create a legitimate struct device with a non-system iommu "driver" (ie we need the bus removed from the iommu code)

CVSS v3 8.8 HIGH

8.8^/10

CVSS v3 : HIGH

Vector :

Exploitability : 2.0 / Impact : 6.0

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope CHANGED

References

Link	Resource
https://git.kernel.org/stable/c/b4ff830eca097df51af10a9be29e8cc817327919
https://git.kernel.org/stable/c/c44adefdcf472f946f0632f4e0ddcbf3e00b8516

Configurations

No configuration.

History

No history.

Information

Published : 2025-12-24 13:16

Updated : 2026-08-04 10:19

NVD link : CVE-2023-54043

Mitre link : CVE-2023-54043

CVE.ORG link : CVE-2023-54043

JSON object : View

Products Affected

No product.

CWE

No CWE.

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