{"cve":"CVE-2026-80867","nvd":{"published":"2026-09-04T17:16:58.510","modified":"2026-09-04T17:16:58.510","status":"Received","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nalpha/PCI: Add security_locked_down() check to pci_mmap_resource()\n\nCurrently, Alpha's pci_mmap_resource() does not check\nsecurity_locked_down(LOCKDOWN_PCI_ACCESS) before allowing userspace to mmap\nPCI BARs.\n\nThe generic version has had this check since commit eb627e17727e (\"PCI:\nLock down BAR access when the kernel is locked down\") to prevent DMA\nattacks when the kernel is locked down.\n\nAdd the same check to Alpha's pci_mmap_resource().","cvss_v4":null,"cvss_v3":null,"cwes":[],"references":["https://git.kernel.org/stable/c/257b55dc3d18d7ef01f62a8ff7317871f7597e28","https://git.kernel.org/stable/c/4de5ff924c0a8ef8166c1a68af9087826e1e8d61","https://git.kernel.org/stable/c/6e368485a1ac19fbde0a8b6a332d4545ae72a8ac","https://git.kernel.org/stable/c/78a228f0aa0e9eba31955950c8a40a9945e2c8bb","https://git.kernel.org/stable/c/85f966b1120874fe530edec50d28373ceb06ebcd"],"products":[],"source":"nvd","synced_at":"2026-10-19T22:52:03.409947763+00:00"},"epss":{"cve":"CVE-2026-80867","score":0.0022,"percentile":0.12507,"date":"2026-10-31"},"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."]}