RDMA/hns: Fix refcount leak in hns_roce_mmap

{
  "id": "da1defc69734bb14a0ad41828353eaa4562c42161162672ab0758c9864e18d94",
  "url": "https://osv.dev/vulnerability/CVE-2022-50775",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "RDMA/hns: Fix refcount leak in hns_roce_mmap",
    "summary": "In the Linux kernel, the following vulnerability has been resolved: RDMA/hns: Fix refcount leak in hns_roce_mmap rdma_user_mmap_entry_get_pgoff() takes the reference. Add missing rdma_user_mmap_entry_put() to release the reference. Acked-by Haoyue Xu",
    "evidence": "osv:CVE-2022-50775",
    "products": [
      {
        "name": {
          "value": "Kernel",
          "evidence": "/affected/1/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "6.1.16",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "6.2.3",
            "evidence": "/affected/1/ranges"
          }
        ],
        "affected_versions": []
      }
    ],
    "severity": "unknown",
    "structured": {
      "id": "CVE-2022-50775",
      "aliases": [
        "CVE-2022-50775"
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      "affected": [
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              "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
              "type": "GIT",
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                {
                  "fixed": "8abd2ff2256a2a99c11c7ecdcb5512429933620f"
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                  "fixed": "cf6a05c8494a8ae7fec8e5f1229b45ca5b4bcd30"
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            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2022-50775.json"
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        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "5.17.0"
                },
                {
                  "fixed": "6.1.16"
                }
              ]
            },
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "6.2.0"
                },
                {
                  "fixed": "6.2.3"
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              ]
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          ],
          "package": {
            "name": "Kernel",
            "ecosystem": "Linux"
          },
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2022-50775.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:50.726767168Z",
      "provider": "osv",
      "references": [
        "https://git.kernel.org/stable/c/8abd2ff2256a2a99c11c7ecdcb5512429933620f",
        "https://git.kernel.org/stable/c/cf6a05c8494a8ae7fec8e5f1229b45ca5b4bcd30",
        "https://git.kernel.org/stable/c/fa87cf2e756efe809ee8683d4f282f4de962dab6",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/50xxx/CVE-2022-50775.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2022-50775",
        "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-2022-50775.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2022-50775",
        "evidence": "/id"
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    ],
    "security_relevant": true,
    "severity_evidence": null
  },
  "source_id": "core-osv",
  "document_id": 519449,
  "published_at": "2025-12-24T13:06:05.074+00:00"
}