platform/chrome: cros_ec_typec: zero out stale pointers

{
  "id": "7aba08ac49569b4dffb5debdea6d331b6fa281db9adbcaf6af436122ec533df4",
  "url": "https://osv.dev/vulnerability/CVE-2022-50642",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "platform/chrome: cros_ec_typec: zero out stale pointers",
    "summary": "In the Linux kernel, the following vulnerability has been resolved: platform/chrome: cros_ec_typec: zero out stale pointers `cros_typec_get_switch_handles` allocates four pointers when obtaining type-c switch handles. These pointers are all freed if failing to obtain any of them; therefore, pointers in `port` become stale. The stale pointers eventually cause use-after-free or double free in later code paths. Zeroing out all pointer fields after freeing to eliminate these stale pointers.",
    "evidence": "osv:CVE-2022-50642",
    "products": [
      {
        "name": {
          "value": "Kernel",
          "evidence": "/affected/1/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "5.15.86",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "6.0.16",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "6.1.2",
            "evidence": "/affected/1/ranges"
          }
        ],
        "affected_versions": []
      }
    ],
    "severity": "unknown",
    "structured": {
      "id": "CVE-2022-50642",
      "aliases": [
        "CVE-2022-50642"
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
              "type": "GIT",
              "events": [
                {
                  "introduced": "f28adb41dab4a2795fd959750df57adffd2bb0be"
                },
                {
                  "fixed": "0ceadb5a3e45f1b81cf54bd496b40a5e50b6bd40"
                },
                {
                  "fixed": "b610758bb3e0674644c1255cdafc2f46b7e05ff9"
                },
                {
                  "fixed": "6613f36a2fa5c69e528bccba8b3d831f759dad2f"
                },
                {
                  "fixed": "9a8aadcf0b459c1257b9477fd6402e1d5952ae07"
                }
              ]
            }
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2022-50642.json"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "5.9.0"
                },
                {
                  "fixed": "5.15.86"
                }
              ]
            },
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "5.16.0"
                },
                {
                  "fixed": "6.0.16"
                }
              ]
            },
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "6.1.0"
                },
                {
                  "fixed": "6.1.2"
                }
              ]
            }
          ],
          "package": {
            "name": "Kernel",
            "ecosystem": "Linux"
          },
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2022-50642.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:32.734080950Z",
      "provider": "osv",
      "references": [
        "https://git.kernel.org/stable/c/0ceadb5a3e45f1b81cf54bd496b40a5e50b6bd40",
        "https://git.kernel.org/stable/c/6613f36a2fa5c69e528bccba8b3d831f759dad2f",
        "https://git.kernel.org/stable/c/9a8aadcf0b459c1257b9477fd6402e1d5952ae07",
        "https://git.kernel.org/stable/c/b610758bb3e0674644c1255cdafc2f46b7e05ff9",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/50xxx/CVE-2022-50642.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2022-50642",
        "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/2022/50xxx/CVE-2022-50642.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2022-50642",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": null
  },
  "source_id": "core-osv",
  "document_id": 500068,
  "published_at": "2025-12-09T00:00:16.49+00:00"
}