net: dsa: sja1105: fix buffer overflow in sja1105_setup_devlink_regions()

{
  "id": "f155b4530be4e78aac6c09e8fe0830cb7312c3c34ccaea2e178f5cb131e5ac28",
  "url": "https://osv.dev/vulnerability/CVE-2022-50040",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "net: dsa: sja1105: fix buffer overflow in sja1105_setup_devlink_regions()",
    "summary": "In the Linux kernel, the following vulnerability has been resolved: net: dsa: sja1105: fix buffer overflow in sja1105_setup_devlink_regions() If an error occurs in dsa_devlink_region_create(), then 'priv->regions' array will be accessed by negative index '-1'. Found by Linux Verification Center (linuxtesting.org) with SVACE.",
    "evidence": "osv:CVE-2022-50040",
    "products": [
      {
        "name": {
          "value": "Kernel",
          "evidence": "/affected/1/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "5.10.138",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "5.15.63",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "5.19.4",
            "evidence": "/affected/1/ranges"
          }
        ],
        "affected_versions": []
      }
    ],
    "severity": "unknown",
    "structured": {
      "id": "CVE-2022-50040",
      "aliases": [
        "CVE-2022-50040"
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
              "type": "GIT",
              "events": [
                {
                  "introduced": "bf425b82059e0b0752c0026353c1902112200837"
                },
                {
                  "fixed": "7983e1e44cb322eba6af84160b6d18df80603fb8"
                },
                {
                  "fixed": "e84c6321f3578c38cb3c24258db91a92672b17a8"
                },
                {
                  "fixed": "79f86b862416126a2e826cb74224180d6625a32f"
                },
                {
                  "fixed": "fd8e899cdb5ecaf8e8ee73854a99e10807eef1de"
                }
              ]
            }
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2022-50040.json"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "5.10.0"
                },
                {
                  "fixed": "5.10.138"
                }
              ]
            },
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "5.11.0"
                },
                {
                  "fixed": "5.15.63"
                }
              ]
            },
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "5.16.0"
                },
                {
                  "fixed": "5.19.4"
                }
              ]
            }
          ],
          "package": {
            "name": "Kernel",
            "ecosystem": "Linux"
          },
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2022-50040.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:29.515357969Z",
      "provider": "osv",
      "references": [
        "https://git.kernel.org/stable/c/7983e1e44cb322eba6af84160b6d18df80603fb8",
        "https://git.kernel.org/stable/c/79f86b862416126a2e826cb74224180d6625a32f",
        "https://git.kernel.org/stable/c/e84c6321f3578c38cb3c24258db91a92672b17a8",
        "https://git.kernel.org/stable/c/fd8e899cdb5ecaf8e8ee73854a99e10807eef1de",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/50xxx/CVE-2022-50040.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2022-50040",
        "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-2022-50040.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2022-50040",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": null
  },
  "source_id": "core-osv",
  "document_id": 496032,
  "published_at": "2025-06-18T11:01:41.42+00:00"
}