{"cve":"CVE-2026-64042","nvd":{"published":"2026-07-19T16:17:44.480","modified":"2026-10-05T18:22:30.963","status":"Analyzed","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nvfio/pci: Check BAR resources before exporting a DMABUF\n\nA DMABUF exports access to BAR resources and, although they are\nrequested at startup time, we need to ensure they really were reserved\nbefore exporting.  Otherwise, it's possible to access unreserved\nresources through the export.\n\nAdd a check to the DMABUF-creation path.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H","score":8.8},"cwes":["CWE-862"],"references":["https://git.kernel.org/stable/c/702809dabdecca807bdd50cfdcc1c980feb2ba62","https://git.kernel.org/stable/c/8443cd4497a4498c4b01058d76a92116244cb605"],"products":["linux:linux_kernel"],"source":"nvd","synced_at":"2026-10-19T22:45:36.895656543+00:00"},"epss":{"cve":"CVE-2026-64042","score":0.00141,"percentile":0.03411,"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."]}