Not yet scoredPublished Sep 4, 2026

CVE-2026-80867alpha/PCI: Add security_locked_down() check to pci_mmap_resource()

Updated under an hour ago (Oct 26, 2026, 4:40 PM ET)

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Exploited in the last 30 days

In the Linux kernel, the following vulnerability has been resolved: alpha/PCI: Add security_locked_down() check to pci_mmap_resource() Currently, Alpha's pci_mmap_resource() does not check security_locked_down(LOCKDOWN_PCI_ACCESS) before allowing userspace to mmap PCI BARs. The generic version has had this check since commit eb627e17727e ("PCI: Lock down BAR access when the kernel is locked down") to prevent DMA attacks when the kernel is locked down. Add the same check to Alpha's pci_mmap_resource().

CVSS: Not yet scored
Weakness (CWE): Not given
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: Linux
NVD analysis: Received
Record last updated: Sep 4, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

Linux Linux linux:linux (from the name)	from eb627e17727ebeede70697ae1798688b0d328b54 before 6e368485a1ac19fbde0a8b6a332d4545ae72a8ac; from eb627e17727ebeede70697ae1798688b0d328b54 before ed2cd1fee0ed16a1c2dff49175e65c641eb8ae2b; from eb627e17727ebeede70697ae1798688b0d328b54 before c3234efe21d4198945492cf7dba6859476f0f6ff; from eb627e17727ebeede70697ae1798688b0d328b54 before 4de5ff924c0a8ef8166c1a68af9087826e1e8d61; from eb627e17727ebeede70697ae1798688b0d328b54 before 85f966b1120874fe530edec50d28373ceb06ebcd; from eb627e17727ebeede70697ae1798688b0d328b54 before 94defb18ac792fd16407d5a52ad0d3f5055c4b43; from eb627e17727ebeede70697ae1798688b0d328b54 before 257b55dc3d18d7ef01f62a8ff7317871f7597e28; from eb627e17727ebeede70697ae1798688b0d328b54 before 78a228f0aa0e9eba31955950c8a40a9945e2c8bb	CNA record

References

References

https://git.kernel.org/stable/c/6e368485a1ac19fbde0a8b6a332d4545ae72a8ac
https://git.kernel.org/stable/c/ed2cd1fee0ed16a1c2dff49175e65c641eb8ae2b
https://git.kernel.org/stable/c/c3234efe21d4198945492cf7dba6859476f0f6ff
https://git.kernel.org/stable/c/4de5ff924c0a8ef8166c1a68af9087826e1e8d61
https://git.kernel.org/stable/c/85f966b1120874fe530edec50d28373ceb06ebcd
https://git.kernel.org/stable/c/94defb18ac792fd16407d5a52ad0d3f5055c4b43
https://git.kernel.org/stable/c/257b55dc3d18d7ef01f62a8ff7317871f7597e28
https://git.kernel.org/stable/c/78a228f0aa0e9eba31955950c8a40a9945e2c8bb

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.