linux-qemu-6.18-bootc — security advisory

{
  "id": "f505f5e3efffc8d073769a56db2cd03d274730a20e4f9fec41ef71afa43a16d5",
  "url": "https://osv.dev/vulnerability/CGA-q76v-33qm-7p64",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CGA-q76v-33qm-7p64",
    "summary": "CGA-q76v-33qm-7p64",
    "evidence": "osv:CGA-q76v-33qm-7p64",
    "products": [
      {
        "name": {
          "value": "linux-qemu-6.18-bootc",
          "evidence": "/affected/0/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [],
        "affected_versions": []
      }
    ],
    "severity": "high",
    "structured": {
      "id": "CGA-q76v-33qm-7p64",
      "aliases": [
        "CGA-q76v-33qm-7p64"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                }
              ]
            }
          ],
          "package": {
            "name": "linux-qemu-6.18-bootc",
            "purl": "pkg:apk/chainguard/linux-qemu-6.18-bootc?arch=x86_64",
            "ecosystem": "Chainguard"
          },
          "database_specific": {
            "source": "https://advisories.cgr.dev/chainguard/v3/osv/CGA-q76v-33qm-7p64.json",
            "chainguard": {
              "applies_to_subpackages": false
            }
          },
          "ecosystem_specific": {
            "components": [
              {
                "component_name": "linux-kernel",
                "component_purl": "pkg:generic/linux-kernel/linux-kernel@6.18.38-r2-qemu-6.18",
                "component_type": "linux-kernel",
                "component_version": "6.18.38-r2-qemu-6.18",
                "component_location": "/usr/lib/modules/6.18.60-r0-qemu-6.18/vmlinuz",
                "latest_event_status": "pending_upstream_fix",
                "latest_event_timestamp": "2026-08-17T10:31:22Z"
              }
            ]
          }
        }
      ],
      "modified": "2026-10-30T20:47:20.130364889Z",
      "provider": "osv",
      "upstream": [
        "CVE-2026-45991",
        "GHSA-x889-prf3-g3vg"
      ],
      "references": [
        "https://git.kernel.org/stable/c/058b451b1039f056d1362c4fec2229e522366ab0",
        "https://git.kernel.org/stable/c/08841b06fa64d8edbd1a21ca6e613420c90cc4b8",
        "https://git.kernel.org/stable/c/08fa5d818e5bf53c7ca234d88ba334f32004e9b6",
        "https://git.kernel.org/stable/c/68013a9bd4c01acd42073715f00e1a1992f089ee",
        "https://git.kernel.org/stable/c/ad3c0c4400686f6f37b382aaa48fac2b9aefccbe",
        "https://git.kernel.org/stable/c/b5597bb83fc37b5b5da74a4453fa920b932cf39a",
        "https://git.kernel.org/stable/c/e8474cfbac9ada2cdaa4eaedec22aadfa0f58559",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/45xxx/CVE-2026-45991.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-45991",
        "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
        "https://cert-portal.siemens.com/productcert/html/ssa-784472.html",
        "https://git.kernel.org/stable/c/73df74544b55241dca5dd788523e6f5f10bd2b9b"
      ]
    },
    "related_cves": [
      {
        "value": "CVE-2026-45991",
        "evidence": "/upstream"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 459406,
  "published_at": "2026-07-15T21:43:32+00:00"
}