net: hibmcge: fix the division by zero issue

{
  "id": "cddb2b123163dc466174f71354c6437235d4b1aae29172b521934eddd378d677",
  "url": "https://osv.dev/vulnerability/CVE-2025-38719",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "net: hibmcge: fix the division by zero issue",
    "summary": "In the Linux kernel, the following vulnerability has been resolved: net: hibmcge: fix the division by zero issue When the network port is down, the queue is released, and ring->len is 0. In debugfs, hbg_get_queue_used_num() will be called, which may lead to a division by zero issue. This patch adds a check, if ring->len is 0, hbg_get_queue_used_num() directly returns 0.",
    "evidence": "osv:CVE-2025-38719",
    "products": [
      {
        "name": {
          "value": "Kernel",
          "evidence": "/affected/1/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "6.15.11",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "6.16.2",
            "evidence": "/affected/1/ranges"
          }
        ],
        "affected_versions": []
      }
    ],
    "severity": "unknown",
    "structured": {
      "id": "CVE-2025-38719",
      "aliases": [
        "CVE-2025-38719"
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
              "type": "GIT",
              "events": [
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                  "introduced": "40735e7543f94fc88f58d94fd5f88daa4a2f2c6e"
                },
                {
                  "fixed": "c945e1ad4f3b77166a3215dabc0c6c980d4a9c73"
                },
                {
                  "fixed": "475e06113c615dafd44262d6d6bd37786f7f4206"
                },
                {
                  "fixed": "7004b26f0b64331143eb0b312e77a357a11427ce"
                }
              ]
            }
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-38719.json"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "6.13.0"
                },
                {
                  "fixed": "6.15.11"
                }
              ]
            },
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "6.16.0"
                },
                {
                  "fixed": "6.16.2"
                }
              ]
            }
          ],
          "package": {
            "name": "Kernel",
            "ecosystem": "Linux"
          },
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-38719.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:45.119681276Z",
      "provider": "osv",
      "references": [
        "https://git.kernel.org/stable/c/475e06113c615dafd44262d6d6bd37786f7f4206",
        "https://git.kernel.org/stable/c/7004b26f0b64331143eb0b312e77a357a11427ce",
        "https://git.kernel.org/stable/c/c945e1ad4f3b77166a3215dabc0c6c980d4a9c73",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/38xxx/CVE-2025-38719.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2025-38719",
        "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/2025/38xxx/CVE-2025-38719.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2025-38719",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": null
  },
  "source_id": "core-osv",
  "document_id": 513332,
  "published_at": "2025-09-04T15:33:13.213+00:00"
}