Answer in brief
CVE-2023-54043 records a High severity (CVSS 8.8) vulnerability in iommufd: Do not add the same hwpt to the ioas->hwpt_list twice. The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
CVSS is 8.8. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=e8d57210035b6377d424ba964961892d01127cf6 <c44adefdcf472f946f0632f4e0ddcbf3e00b8516 || >=e8d57210035b6377d424ba964961892d01127cf6 <b4ff830eca097df51af10a9be29e8cc817327919 | c44adefdcf472f946f0632f4e0ddcbf3e00b8516, b4ff830eca097df51af10a9be29e8cc817327919 |
| Linux/Linuxgeneric | 6.2 | Not reported |
Published upstream
Dec 24, 2025
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Aug 5, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Aug 4, 2026
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)
Quoted source text, attributed separately from HOL analysis.
Answer in brief
CVE-2023-54043 records a High severity (CVSS 8.8) vulnerability in iommufd: Do not add the same hwpt to the ioas->hwpt_list twice. The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
CVSS is 8.8. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=e8d57210035b6377d424ba964961892d01127cf6 <c44adefdcf472f946f0632f4e0ddcbf3e00b8516 || >=e8d57210035b6377d424ba964961892d01127cf6 <b4ff830eca097df51af10a9be29e8cc817327919 | c44adefdcf472f946f0632f4e0ddcbf3e00b8516, b4ff830eca097df51af10a9be29e8cc817327919 |
| Linux/Linuxgeneric | 6.2 | Not reported |
Published upstream
Dec 24, 2025
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Aug 5, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Aug 4, 2026
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)
Quoted source text, attributed separately from HOL analysis.