{"id":"CVE-2026-80867","summary":"alpha/PCI: Add security_locked_down() check to pci_mmap_resource()","details":"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().","modified":"2026-09-06T03:46:54.664084593Z","published":"2026-09-04T16:48:15.723Z","database_specific":{"cna_assigner":"Linux","osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/80xxx/CVE-2026-80867.json"},"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/257b55dc3d18d7ef01f62a8ff7317871f7597e28"},{"type":"WEB","url":"https://git.kernel.org/stable/c/4de5ff924c0a8ef8166c1a68af9087826e1e8d61"},{"type":"WEB","url":"https://git.kernel.org/stable/c/6e368485a1ac19fbde0a8b6a332d4545ae72a8ac"},{"type":"WEB","url":"https://git.kernel.org/stable/c/78a228f0aa0e9eba31955950c8a40a9945e2c8bb"},{"type":"WEB","url":"https://git.kernel.org/stable/c/85f966b1120874fe530edec50d28373ceb06ebcd"},{"type":"WEB","url":"https://git.kernel.org/stable/c/94defb18ac792fd16407d5a52ad0d3f5055c4b43"},{"type":"WEB","url":"https://git.kernel.org/stable/c/c3234efe21d4198945492cf7dba6859476f0f6ff"},{"type":"WEB","url":"https://git.kernel.org/stable/c/ed2cd1fee0ed16a1c2dff49175e65c641eb8ae2b"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/80xxx/CVE-2026-80867.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-80867"},{"type":"PACKAGE","url":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"eb627e17727ebeede70697ae1798688b0d328b54"},{"fixed":"6e368485a1ac19fbde0a8b6a332d4545ae72a8ac"},{"fixed":"ed2cd1fee0ed16a1c2dff49175e65c641eb8ae2b"},{"fixed":"c3234efe21d4198945492cf7dba6859476f0f6ff"},{"fixed":"4de5ff924c0a8ef8166c1a68af9087826e1e8d61"},{"fixed":"85f966b1120874fe530edec50d28373ceb06ebcd"},{"fixed":"94defb18ac792fd16407d5a52ad0d3f5055c4b43"},{"fixed":"257b55dc3d18d7ef01f62a8ff7317871f7597e28"},{"fixed":"78a228f0aa0e9eba31955950c8a40a9945e2c8bb"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-80867.json"}},{"package":{"name":"Kernel","ecosystem":"Linux"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"5.4.0"},{"fixed":"5.10.261"}]},{"type":"ECOSYSTEM","events":[{"introduced":"5.11.0"},{"fixed":"5.15.212"}]},{"type":"ECOSYSTEM","events":[{"introduced":"5.16.0"},{"fixed":"6.1.178"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.2.0"},{"fixed":"6.6.145"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.7.0"},{"fixed":"6.12.97"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.13.0"},{"fixed":"6.18.40"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.19.0"},{"fixed":"7.1.5"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-80867.json"}}],"schema_version":"1.9.0"}