Answer in brief
CVE-2026-80867 records a Unknown severity vulnerability in alpha/PCI: Add security_locked_down() check to pci_mmap_resource(). The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
A CVSS score is not reported in the current record. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=eb627e17727ebeede70697ae1798688b0d328b54 <6e368485a1ac19fbde0a8b6a332d4545ae72a8ac || >=eb627e17727ebeede70697ae1798688b0d328b54 <ed2cd1fee0ed16a1c2dff49175e65c641eb8ae2b || >=eb627e17727ebeede70697ae1798688b0d328b54 <c3234efe21d4198945492cf7dba6859476f0f6ff || >=eb627e17727ebeede70697ae1798688b0d328b54 <4de5ff924c0a8ef8166c1a68af9087826e1e8d61 || >=eb627e17727ebeede70697ae1798688b0d328b54 <85f966b1120874fe530edec50d28373ceb06ebcd || >=eb627e17727ebeede70697ae1798688b0d328b54 <94defb18ac792fd16407d5a52ad0d3f5055c4b43 || >=eb627e17727ebeede70697ae1798688b0d328b54 <257b55dc3d18d7ef01f62a8ff7317871f7597e28 || >=eb627e17727ebeede70697ae1798688b0d328b54 <78a228f0aa0e9eba31955950c8a40a9945e2c8bb | 6e368485a1ac19fbde0a8b6a332d4545ae72a8ac, ed2cd1fee0ed16a1c2dff49175e65c641eb8ae2b, c3234efe21d4198945492cf7dba6859476f0f6ff, 4de5ff924c0a8ef8166c1a68af9087826e1e8d61, 85f966b1120874fe530edec50d28373ceb06ebcd, 94defb18ac792fd16407d5a52ad0d3f5055c4b43, 257b55dc3d18d7ef01f62a8ff7317871f7597e28, 78a228f0aa0e9eba31955950c8a40a9945e2c8bb |
| Linux/Linuxgeneric | 5.4 | Not reported |
Published upstream
Sep 4, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Sep 4, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Sep 4, 2026
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().
Quoted source text, attributed separately from HOL analysis.