iommu/vt-d: Flush cache for PASID table before using it_CVE-2026-45862

{
    "lastseen": "",
    "description": "In the Linux kernel, the following vulnerability has been resolved:\n\niommu/vt-d: Flush cache for PASID table before using it\n\nWhen writing the address of a freshly allocated zero-initialized PASID\ntable to a PASID directory entry, do that after the CPU cache flush for\nthis PASID table, not before it, to avoid the time window when this\nPASID table may be already used by non-coherent IOMMU hardware while\nits contents in RAM is still some random old data, not zero-initialized.",
    "published": "2026-05-27T12:15:41.903Z",
    "modified": "2026-05-30T10:45:42.298Z",
    "type": "cve",
    "title": "iommu/vt-d: Flush cache for PASID table before using it",
    "source": "Linux",
    "references": "https://git.kernel.org/stable/c/cd75e77125c8a51754ca4cd60b4ca083ed735d1d\nhttps://git.kernel.org/stable/c/0616137b70e6d9a547d4b60df8e1b64e36d83661\nhttps://git.kernel.org/stable/c/36990407cdd257473607e33802d00e978af2759e\nhttps://git.kernel.org/stable/c/c93f23375d8c410954b0df825e814b632fd62b9d\nhttps://git.kernel.org/stable/c/5962c30a6f05ea1ab73f039e235bb30716243517\nhttps://git.kernel.org/stable/c/36244dfd3853f7bf89d03b8e90d56b23ce7fbc16\nhttps://git.kernel.org/stable/c/d15cda135148ea7ba929cfdbcf208182bc29a7aa\nhttps://git.kernel.org/stable/c/22d169bdd2849fe6bd18c2643742e1c02be6451c",
    "id": "CVE-2026-45862",
    "bulletinFamily": "",
    "cwe": null,
    "cvelist": null,
    "sourceData": "Linux Linux 7e00b52c8cdd9d3a985d63d72ecae7bde6314883\nLinux Linux 5c65f097124770c3e5b9b83ed1a8b68c119bc7b5\nLinux Linux 2bed9455db7cc0ab7ece6b3d846472097b52855a\nLinux Linux 194b3348bdbb7db65375c72f3f774aee4cc6614e\nLinux Linux 194b3348bdbb7db65375c72f3f774aee4cc6614e\nLinux Linux 194b3348bdbb7db65375c72f3f774aee4cc6614e\nLinux Linux 194b3348bdbb7db65375c72f3f774aee4cc6614e\nLinux Linux 194b3348bdbb7db65375c72f3f774aee4cc6614e\nLinux Linux 1b48c70feefc499b62670521efa002ab01e05df5\nLinux Linux bc348a6cc8f92e9979fbfbb3c6b48fd51b4b1dbf\nLinux Linux 5.10.175\nLinux Linux 5.15.103\nLinux Linux 6.1.16\nLinux Linux 5.4.237\nLinux Linux 6.2.3\nLinux Linux 6.3",
    "sourceHref": "",
    "cvss": {
        "score": 7.8,
        "severity": "HIGH",
        "vector": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H",
        "version": "3.1"
    },
    "cvss2": [],
    "cvss3": {
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        "baseScore": 0,
        "baseSeverity": "",
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        "privilegesRequired": "",
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        "scope": "",
        "confidentialityImpact": "",
        "integrityImpact": "",
        "availabilityImpact": "",
        "cvssV3": {
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        }
    },
    "href": "",
    "category_name": "CVE",
    "post_link": "",
    "product": "Linux",
    "version": "7e00b52c8cdd9d3a985d63d72ecae7bde6314883",
    "vendor": "Linux",
    "ai_description": "",
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    "ai_score": 0
}