RDMA/nldev: Prevent underflow in nldev_stat_set_counter_dynamic_doit()

{
  "id": "d24abc24fb502aa9f7017baa9b6a4f68b9beda526e91ee918e8977036b305fd4",
  "url": "https://osv.dev/vulnerability/CVE-2022-49199",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "RDMA/nldev: Prevent underflow in nldev_stat_set_counter_dynamic_doit()",
    "summary": "In the Linux kernel, the following vulnerability has been resolved: RDMA/nldev: Prevent underflow in nldev_stat_set_counter_dynamic_doit() This code checks \"index\" for an upper bound but it does not check for negatives. Change the type to unsigned to prevent underflows.",
    "evidence": "osv:CVE-2022-49199",
    "products": [
      {
        "name": {
          "value": "Kernel",
          "evidence": "/affected/1/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "5.16.19",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "5.17.2",
            "evidence": "/affected/1/ranges"
          }
        ],
        "affected_versions": []
      }
    ],
    "severity": "unknown",
    "structured": {
      "id": "CVE-2022-49199",
      "aliases": [
        "CVE-2022-49199"
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
              "type": "GIT",
              "events": [
                {
                  "introduced": "3c3c1f1416392382faa0238e76a70d7810aab2ef"
                },
                {
                  "fixed": "f6dd8669b8299a3a536cd92a7069152a7704da1d"
                },
                {
                  "fixed": "2a495ef04d5f42e6f00eb2bec1ee9075e3d5a771"
                },
                {
                  "fixed": "87e0eacb176f9500c2063d140c0a1d7fa51ab8a5"
                }
              ]
            }
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2022-49199.json"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "5.16.0"
                },
                {
                  "fixed": "5.16.19"
                }
              ]
            },
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "5.17.0"
                },
                {
                  "fixed": "5.17.2"
                }
              ]
            }
          ],
          "package": {
            "name": "Kernel",
            "ecosystem": "Linux"
          },
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2022-49199.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:23.906328654Z",
      "provider": "osv",
      "references": [
        "https://git.kernel.org/stable/c/2a495ef04d5f42e6f00eb2bec1ee9075e3d5a771",
        "https://git.kernel.org/stable/c/87e0eacb176f9500c2063d140c0a1d7fa51ab8a5",
        "https://git.kernel.org/stable/c/f6dd8669b8299a3a536cd92a7069152a7704da1d",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/49xxx/CVE-2022-49199.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2022-49199",
        "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-2022-49199.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2022-49199",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": null
  },
  "source_id": "core-osv",
  "document_id": 490326,
  "published_at": "2025-02-26T01:55:42.12+00:00"
}