{"cve":"CVE-2026-45862","nvd":{"published":"2026-05-27T14:16:58.430","modified":"2026-10-19T20:18:20.473","status":"Modified","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.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H","score":7.8},"cwes":["CWE-362"],"references":["https://git.kernel.org/stable/c/0616137b70e6d9a547d4b60df8e1b64e36d83661","https://git.kernel.org/stable/c/22d169bdd2849fe6bd18c2643742e1c02be6451c","https://git.kernel.org/stable/c/36244dfd3853f7bf89d03b8e90d56b23ce7fbc16","https://git.kernel.org/stable/c/36990407cdd257473607e33802d00e978af2759e","https://git.kernel.org/stable/c/5962c30a6f05ea1ab73f039e235bb30716243517"],"products":["linux:linux_kernel"],"source":"nvd","synced_at":"2026-10-21T03:43:09.190223697+00:00"},"epss":{"cve":"CVE-2026-45862","score":0.00131,"percentile":0.0271,"date":"2026-10-25"},"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}