freezer,umh: Fix call_usermode_helper_exec() vs SIGKILL

{
  "id": "925802501dd7f4456fd72414a1a3fb19750518e858a4587ebce04f63fe2487f1",
  "url": "https://osv.dev/vulnerability/CVE-2023-52704",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "freezer,umh: Fix call_usermode_helper_exec() vs SIGKILL",
    "summary": "In the Linux kernel, the following vulnerability has been resolved: freezer,umh: Fix call_usermode_helper_exec() vs SIGKILL Tetsuo-San noted that commit f5d39b020809 (\"freezer,sched: Rewrite core freezer logic\") broke call_usermodehelper_exec() for the KILLABLE case. Specifically it was missed that the second, unconditional, wait_for_completion() was not optional and ensures the on-stack completion is unused before going out-of-scope.",
    "evidence": "osv:CVE-2023-52704",
    "products": [
      {
        "name": {
          "value": "Kernel",
          "evidence": "/affected/1/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "6.1.13",
            "evidence": "/affected/1/ranges"
          }
        ],
        "affected_versions": []
      }
    ],
    "severity": "high",
    "structured": {
      "id": "CVE-2023-52704",
      "aliases": [
        "CVE-2023-52704"
      ],
      "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": [
            {
              "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
              "type": "GIT",
              "events": [
                {
                  "introduced": "f5d39b020809146cc28e6e73369bf8065e0310aa"
                },
                {
                  "fixed": "7f9f6c54da876b3f0bece2b569456ceb96965ed7"
                },
                {
                  "fixed": "eedeb787ebb53de5c5dcf7b7b39d01bf1b0f037d"
                }
              ]
            }
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2023-52704.json"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "6.1.0"
                },
                {
                  "fixed": "6.1.13"
                }
              ]
            }
          ],
          "package": {
            "name": "Kernel",
            "ecosystem": "Linux"
          },
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2023-52704.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:37.208972651Z",
      "provider": "osv",
      "references": [
        "https://git.kernel.org/stable/c/7f9f6c54da876b3f0bece2b569456ceb96965ed7",
        "https://git.kernel.org/stable/c/eedeb787ebb53de5c5dcf7b7b39d01bf1b0f037d",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/52xxx/CVE-2023-52704.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2023-52704",
        "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/2023/52xxx/CVE-2023-52704.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2023-52704",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 504058,
  "published_at": "2024-05-21T15:22:53.343+00:00"
}