ublk: don't allow user copy for unprivileged device

{
  "id": "07f3495d7bb6879ccffc5850d2c3b661aa5e032ecc502367ddfd2cc3fa73383d",
  "url": "https://osv.dev/vulnerability/CVE-2024-50080",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "ublk: don't allow user copy for unprivileged device",
    "summary": "In the Linux kernel, the following vulnerability has been resolved: ublk: don't allow user copy for unprivileged device UBLK_F_USER_COPY requires userspace to call write() on ublk char device for filling request buffer, and unprivileged device can't be trusted. So don't allow user copy for unprivileged device.",
    "evidence": "osv:CVE-2024-50080",
    "products": [
      {
        "name": {
          "value": "Kernel",
          "evidence": "/affected/1/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "6.6.58",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "6.11.5",
            "evidence": "/affected/1/ranges"
          }
        ],
        "affected_versions": []
      }
    ],
    "severity": "medium",
    "structured": {
      "id": "CVE-2024-50080",
      "aliases": [
        "CVE-2024-50080"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
              "type": "GIT",
              "events": [
                {
                  "introduced": "1172d5b8beca6b899deb9f7f2850e7e47ec16198"
                },
                {
                  "fixed": "6414ab5c9c9c068eca6dc4fd3a036bc4b83164dc"
                },
                {
                  "fixed": "8f3d5686a2409877c5e8e2540774d24ed2b4a4ce"
                },
                {
                  "fixed": "42aafd8b48adac1c3b20fe5892b1b91b80c1a1e6"
                }
              ]
            }
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2024-50080.json"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "6.5.0"
                },
                {
                  "fixed": "6.6.58"
                }
              ]
            },
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "6.7.0"
                },
                {
                  "fixed": "6.11.5"
                }
              ]
            }
          ],
          "package": {
            "name": "Kernel",
            "ecosystem": "Linux"
          },
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2024-50080.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:29.833152488Z",
      "provider": "osv",
      "references": [
        "https://git.kernel.org/stable/c/42aafd8b48adac1c3b20fe5892b1b91b80c1a1e6",
        "https://git.kernel.org/stable/c/6414ab5c9c9c068eca6dc4fd3a036bc4b83164dc",
        "https://git.kernel.org/stable/c/8f3d5686a2409877c5e8e2540774d24ed2b4a4ce",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/50xxx/CVE-2024-50080.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2024-50080",
        "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/2024/50xxx/CVE-2024-50080.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2024-50080",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 496463,
  "published_at": "2024-10-29T00:50:22.561+00:00"
}