Revert "usb: typec: ucsi: add a common function ucsi_unregister_connectors()"

{
  "id": "c78221a01df058abc0f1dcb7f35254bcb26cbf2332f82a85a84bb2a938b834a0",
  "url": "https://osv.dev/vulnerability/CVE-2022-49944",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "Revert \"usb: typec: ucsi: add a common function ucsi_unregister_connectors()\"",
    "summary": "In the Linux kernel, the following vulnerability has been resolved: Revert \"usb: typec: ucsi: add a common function ucsi_unregister_connectors()\" The recent commit 87d0e2f41b8c (\"usb: typec: ucsi: add a common function ucsi_unregister_connectors()\") introduced a regression that caused NULL dereference at reading the power supply sysfs. It's a stale sysfs entry that should have been removed but remains with NULL ops. The commit changed the error handling to skip the entries after a NULL con->wq, and this leaves the power device unreleased. For addressing the regression, the straight revert is applied here. Further code improvements can be done from the scratch again.",
    "evidence": "osv:CVE-2022-49944",
    "products": [
      {
        "name": {
          "value": "Kernel",
          "evidence": "/affected/1/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "5.19.8",
            "evidence": "/affected/1/ranges"
          }
        ],
        "affected_versions": []
      }
    ],
    "severity": "high",
    "structured": {
      "id": "CVE-2022-49944",
      "aliases": [
        "CVE-2022-49944"
      ],
      "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": "87d0e2f41b8cc2018499be4e8003fa8c09b6f2fb"
                },
                {
                  "fixed": "3d4044c9e6d2e3f11f1f8b5e0ee8647d3eb1afad"
                },
                {
                  "fixed": "5f73aa2cf8bef4a39baa1591c3144ede4788826e"
                }
              ]
            }
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2022-49944.json"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "5.19.0"
                },
                {
                  "fixed": "5.19.8"
                }
              ]
            }
          ],
          "package": {
            "name": "Kernel",
            "ecosystem": "Linux"
          },
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2022-49944.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:23.486044370Z",
      "provider": "osv",
      "references": [
        "https://git.kernel.org/stable/c/3d4044c9e6d2e3f11f1f8b5e0ee8647d3eb1afad",
        "https://git.kernel.org/stable/c/5f73aa2cf8bef4a39baa1591c3144ede4788826e",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/49xxx/CVE-2022-49944.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2022-49944",
        "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/2022/49xxx/CVE-2022-49944.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2022-49944",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 489847,
  "published_at": "2025-06-18T10:59:59.319+00:00"
}