{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "1c3b002c6bf684b445a7107609979bca5f21bc03"
            },
            {
              "fixed": "175717cfc06cab79f84cd037d66dda1b8564cd9e"
            },
            {
              "fixed": "3c25587fbf8797b92090b064a6d239a873e55fb1"
            },
            {
              "fixed": "1cba96c0a795124c3229293ed7b5b5765e66f259"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Linux",
        "name": "Kernel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "6.17.0"
            },
            {
              "fixed": "6.18.33"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.19.0"
            },
            {
              "fixed": "7.0.10"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/53xxx/CVE-2026-53067.json"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nPCI: endpoint: pci-ep-msi: Fix error unwind and prevent double alloc\n\npci_epf_alloc_doorbell() stores the allocated doorbell message array in\nepf-\u003edb_msg/epf-\u003enum_db before requesting MSI vectors. If MSI allocation\nfails, the array is freed but the EPF state may still point to freed\nmemory.\n\nClear epf-\u003edb_msg and epf-\u003enum_db on the MSI allocation failure path so\nthat later cleanup cannot double-free the array and callers can retry\nallocation.\n\nAlso return -EBUSY when doorbells have already been allocated to prevent\nleaking or overwriting an existing allocation.",
  "id": "CVE-2026-53067",
  "modified": "2026-08-12T03:51:22.333952729Z",
  "published": "2026-06-24T16:30:09.492Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/175717cfc06cab79f84cd037d66dda1b8564cd9e"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/1cba96c0a795124c3229293ed7b5b5765e66f259"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/3c25587fbf8797b92090b064a6d239a873e55fb1"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/53xxx/CVE-2026-53067.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-53067"
    },
    {
      "type": "PACKAGE",
      "url": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
    }
  ],
  "schema_version": "1.9.0",
  "summary": "PCI: endpoint: pci-ep-msi: Fix error unwind and prevent double alloc"
}