CVE-2023-54043
iommufd: Do not add the same hwpt to the ioas->hwpt_list twice
CVSS Score
0.0
EPSS Score
0.0%
EPSS Percentile
0th
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)
| Vendor | linux |
| Product | linux |
| Ecosystems | |
| Industries | Technology |
| Published | Dec 24, 2025 |
| Last Updated | May 11, 2026 |
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Affected Versions
Linux / Linux
e8d57210035b6377d424ba964961892d01127cf6 < c44adefdcf472f946f0632f4e0ddcbf3e00b8516 e8d57210035b6377d424ba964961892d01127cf6 < b4ff830eca097df51af10a9be29e8cc817327919
Linux / Linux
6.2