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Description

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)

PUBLISHED Reserved 2025-12-24 | Published 2025-12-24 | Updated 2025-12-24 | Assigner Linux

Product status

Default status
unaffected

e8d57210035b6377d424ba964961892d01127cf6 (git) before c44adefdcf472f946f0632f4e0ddcbf3e00b8516
affected

e8d57210035b6377d424ba964961892d01127cf6 (git) before b4ff830eca097df51af10a9be29e8cc817327919
affected

Default status
affected

6.2
affected

Any version before 6.2
unaffected

6.2.3 (semver)
unaffected

6.3 (original_commit_for_fix)
unaffected

References

git.kernel.org/...c/c44adefdcf472f946f0632f4e0ddcbf3e00b8516

git.kernel.org/...c/b4ff830eca097df51af10a9be29e8cc817327919

cve.org (CVE-2023-54043)

nvd.nist.gov (CVE-2023-54043)

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Data based on CVE®. Copyright © 1999-2025, The MITRE Corporation. All rights reserved.