linux-qemu-6.18 — security advisory

{
  "id": "c8e838b9ef64efa96945100c434dafbe55f4ba12c849554b0ccc9656836afd7d",
  "url": "https://osv.dev/vulnerability/CGA-6rhq-rqh8-jv88",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CGA-6rhq-rqh8-jv88",
    "summary": "CGA-6rhq-rqh8-jv88",
    "evidence": "osv:CGA-6rhq-rqh8-jv88",
    "products": [
      {
        "name": {
          "value": "linux-qemu-6.18",
          "evidence": "/affected/0/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "6.18.57-r0",
            "evidence": "/affected/0/ranges"
          }
        ],
        "affected_versions": []
      }
    ],
    "severity": "high",
    "structured": {
      "id": "CGA-6rhq-rqh8-jv88",
      "aliases": [
        "CGA-6rhq-rqh8-jv88"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "6.18.57-r0"
                }
              ]
            }
          ],
          "package": {
            "name": "linux-qemu-6.18",
            "purl": "pkg:apk/chainguard/linux-qemu-6.18?arch=x86_64",
            "ecosystem": "Chainguard"
          },
          "database_specific": {
            "source": "https://advisories.cgr.dev/chainguard/v3/osv/CGA-6rhq-rqh8-jv88.json",
            "chainguard": {
              "applies_to_subpackages": false
            }
          },
          "ecosystem_specific": {
            "components": [
              {
                "component_name": "linux-kernel",
                "component_purl": "pkg:generic/linux-kernel/linux-kernel@6.18.55-r2-qemu-6.18",
                "component_type": "linux-kernel",
                "component_version": "6.18.55-r2-qemu-6.18",
                "component_location": "/boot/vmlinuz-6.18.57-r1-qemu-6.18",
                "latest_event_status": "fixed",
                "latest_event_timestamp": "2026-10-19T15:00:42Z"
              }
            ]
          }
        }
      ],
      "modified": "2026-10-19T21:30:35.120060378Z",
      "provider": "osv",
      "upstream": [
        "CVE-2026-64020",
        "GHSA-vrp7-59vv-qgvc"
      ],
      "references": [
        "https://git.kernel.org/stable/c/24ea0de233d9ebb5ebd6f6018eaf2084af25e3dd",
        "https://git.kernel.org/stable/c/85686c72966c5ee637893f124ddb31a1cace7bee",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/64xxx/CVE-2026-64020.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-64020",
        "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
        "https://git.kernel.org/stable/c/b9390aa62fdcabdaac2d09545be05901f6cecaf5"
      ]
    },
    "related_cves": [
      {
        "value": "CVE-2026-64020",
        "evidence": "/upstream"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 376005,
  "published_at": "2026-10-14T12:50:49+00:00"
}