UnratedFix available
alpha/PCI: Add security_locked_down() check to pci_mmap_resource()
Type: advisorySources: OSV
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().
- Products
- Kernel
- Affected versions
- Not specified
- Fixed versions
- 5.10.261, 5.15.212, 6.1.178, 6.12.97, 6.18.40, 6.6.145, 7.1.5
- CVEs
- CVE-2026-80867
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 3 Nov 2026, 12:42 UTC · Revision 1
Source evidence
alpha/PCI: Add security_locked_down() check to pci_mmap_resource()
core-osv · Original sourcePublished 4 Sept 2026, 16:48 UTC
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().
osv:CVE-2026-80867
Kernel
Fixed versions: 5.10.261, 5.15.212, 6.1.178, 6.6.145, 6.12.97, 6.18.40, 7.1.5
Complete source record
{
"id": "fc991cd25d4b65c73e06dc173e0ca3490a0d98b7d6d4192a3f1065c6d707f719",
"url": "https://osv.dev/vulnerability/CVE-2026-80867",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "alpha/PCI: Add security_locked_down() check to pci_mmap_resource()",
"summary": "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().",
"evidence": "osv:CVE-2026-80867",
"products": [
{
"name": {
"value": "Kernel",
"evidence": "/affected/1/package/name"
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"prerequisites": [],
"fixed_versions": [
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"evidence": "/affected/1/ranges"
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{
"value": "5.15.212",
"evidence": "/affected/1/ranges"
},
{
"value": "6.1.178",
"evidence": "/affected/1/ranges"
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{
"value": "6.6.145",
"evidence": "/affected/1/ranges"
},
{
"value": "6.12.97",
"evidence": "/affected/1/ranges"
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{
"value": "6.18.40",
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{
"value": "7.1.5",
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"affected_versions": []
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],
"severity": "unknown",
"structured": {
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"aliases": [
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"affected": [
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{
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"database_specific": {
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},
{
"ranges": [
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},
{
"type": "ECOSYSTEM",
"events": [
{
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{
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},
{
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"events": [
{
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{
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},
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "6.13.0"
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{
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]
},
{
"type": "ECOSYSTEM",
"events": [
{
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},
{
"fixed": "7.1.5"
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]
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],
"package": {
"name": "Kernel",
"ecosystem": "Linux"
},
"database_specific": {
"source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-80867.json"
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],
"modified": "2026-10-28T02:30:28.759767777Z",
"provider": "osv",
"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",
"https://git.kernel.org/stable/c/94defb18ac792fd16407d5a52ad0d3f5055c4b43",
"https://git.kernel.org/stable/c/c3234efe21d4198945492cf7dba6859476f0f6ff",
"https://git.kernel.org/stable/c/ed2cd1fee0ed16a1c2dff49175e65c641eb8ae2b",
"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/80xxx/CVE-2026-80867.json",
"https://nvd.nist.gov/vuln/detail/CVE-2026-80867",
"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
],
"provider_metadata": {
"cna_assigner": "Linux",
"osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/80xxx/CVE-2026-80867.json"
}
},
"related_cves": [
{
"value": "CVE-2026-80867",
"evidence": "/id"
}
],
"security_relevant": true,
"severity_evidence": null
},
"source_id": "core-osv",
"document_id": 495476,
"published_at": "2026-09-04T16:48:15.723+00:00"
}