Answer in brief
CVE-2026-45862 records a High severity (CVSS 7.8) vulnerability in iommu/vt-d: Flush cache for PASID table before using it. 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 7.8. 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 | >=7e00b52c8cdd9d3a985d63d72ecae7bde6314883 <cd75e77125c8a51754ca4cd60b4ca083ed735d1d || >=5c65f097124770c3e5b9b83ed1a8b68c119bc7b5 <0616137b70e6d9a547d4b60df8e1b64e36d83661 || >=2bed9455db7cc0ab7ece6b3d846472097b52855a <36990407cdd257473607e33802d00e978af2759e || >=194b3348bdbb7db65375c72f3f774aee4cc6614e <c93f23375d8c410954b0df825e814b632fd62b9d || >=194b3348bdbb7db65375c72f3f774aee4cc6614e <5962c30a6f05ea1ab73f039e235bb30716243517 || >=194b3348bdbb7db65375c72f3f774aee4cc6614e <36244dfd3853f7bf89d03b8e90d56b23ce7fbc16 || >=194b3348bdbb7db65375c72f3f774aee4cc6614e <d15cda135148ea7ba929cfdbcf208182bc29a7aa || >=194b3348bdbb7db65375c72f3f774aee4cc6614e <22d169bdd2849fe6bd18c2643742e1c02be6451c || 1b48c70feefc499b62670521efa002ab01e05df5 || bc348a6cc8f92e9979fbfbb3c6b48fd51b4b1dbf || >=5.10.175 <5.10.252 || >=5.15.103 <5.15.202 || >=6.1.16 <6.1.165 || >=5.4.237 <5.5 || >=6.2.3 <6.3 | cd75e77125c8a51754ca4cd60b4ca083ed735d1d, 0616137b70e6d9a547d4b60df8e1b64e36d83661, 36990407cdd257473607e33802d00e978af2759e, c93f23375d8c410954b0df825e814b632fd62b9d, 5962c30a6f05ea1ab73f039e235bb30716243517, 36244dfd3853f7bf89d03b8e90d56b23ce7fbc16, d15cda135148ea7ba929cfdbcf208182bc29a7aa, 22d169bdd2849fe6bd18c2643742e1c02be6451c, 5.10.252, 5.15.202, 6.1.165, 5.5, 6.3 |
| Linux/Linuxgeneric | 6.3 | Not reported |
Published upstream
May 27, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Aug 5, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Jun 25, 2026
In the Linux kernel, the following vulnerability has been resolved: iommu/vt-d: Flush cache for PASID table before using it When writing the address of a freshly allocated zero-initialized PASID table to a PASID directory entry, do that after the CPU cache flush for this PASID table, not before it, to avoid the time window when this PASID table may be already used by non-coherent IOMMU hardware while its contents in RAM is still some random old data, not zero-initialized.
Quoted source text, attributed separately from HOL analysis.