CVE-2023-54043
N/A
N/A
Summary
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)
Affected Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Linux | Linux | e8d57210035b6377d424ba964961892d01127cf6 < c44adefdcf472f946f0632f4e0ddcbf3e00b8516 | affected |
| Linux | Linux | e8d57210035b6377d424ba964961892d01127cf6 < b4ff830eca097df51af10a9be29e8cc817327919 | affected |
| Linux | Linux | 6.2 | affected |
| Linux | Linux | 0 < 6.2 | unaffected |
| Linux | Linux | 6.2.3 <= 6.2.* | unaffected |
| Linux | Linux | 6.3 <= * | unaffected |
Weaknesses
References
- https://git.kernel.org/stable/c/c44adefdcf472f946f0632f4e0ddcbf3e00b8516
- https://git.kernel.org/stable/c/b4ff830eca097df51af10a9be29e8cc817327919
Feedback
Was this page helpful?
Glad to hear it! Please tell us how we can improve.
Sorry to hear that. Please tell us how we can improve.