wifi: mac80211: Set n_channels after allocating struct cfg80211_scan_request

{
  "id": "108728970f6845a189e6c8a6d5f8ae778fa796cf7cc84ee370b18a4aa37c8b5b",
  "url": "https://osv.dev/vulnerability/CVE-2025-38013",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "wifi: mac80211: Set n_channels after allocating struct cfg80211_scan_request",
    "summary": "In the Linux kernel, the following vulnerability has been resolved: wifi: mac80211: Set n_channels after allocating struct cfg80211_scan_request Make sure that n_channels is set after allocating the struct cfg80211_registered_device::int_scan_req member. Seen with syzkaller: UBSAN: array-index-out-of-bounds in net/mac80211/scan.c:1208:5 index 0 is out of range for type 'struct ieee80211_channel *[] __counted_by(n_channels)' (aka 'struct ieee80211_channel *[]') This was missed in the initial conversions because I failed to locate the allocation likely due to the \"sizeof(void *)\" not matching the \"channels\" array type.",
    "evidence": "osv:CVE-2025-38013",
    "products": [
      {
        "name": {
          "value": "Kernel",
          "evidence": "/affected/1/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "6.6.92",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "6.12.30",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "6.14.8",
            "evidence": "/affected/1/ranges"
          }
        ],
        "affected_versions": []
      }
    ],
    "severity": "unknown",
    "structured": {
      "id": "CVE-2025-38013",
      "aliases": [
        "CVE-2025-38013"
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
              "type": "GIT",
              "events": [
                {
                  "introduced": "e3eac9f32ec04112b39e01b574ac739382469bf9"
                },
                {
                  "fixed": "fde33ab3c052a302ee8a0b739094b88ceae4dd67"
                },
                {
                  "fixed": "07c737d9ab02c07b562aefcca16aa95077368e24"
                },
                {
                  "fixed": "e3192e999a0d05ea0ba2c59c09afaf0b8ee70b81"
                },
                {
                  "fixed": "82bbe02b2500ef0a62053fe2eb84773fe31c5a0a"
                }
              ]
            }
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-38013.json"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "6.6.0"
                },
                {
                  "fixed": "6.6.92"
                }
              ]
            },
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "6.7.0"
                },
                {
                  "fixed": "6.12.30"
                }
              ]
            },
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "6.13.0"
                },
                {
                  "fixed": "6.14.8"
                }
              ]
            }
          ],
          "package": {
            "name": "Kernel",
            "ecosystem": "Linux"
          },
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-38013.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:33.585510959Z",
      "provider": "osv",
      "references": [
        "https://git.kernel.org/stable/c/07c737d9ab02c07b562aefcca16aa95077368e24",
        "https://git.kernel.org/stable/c/82bbe02b2500ef0a62053fe2eb84773fe31c5a0a",
        "https://git.kernel.org/stable/c/e3192e999a0d05ea0ba2c59c09afaf0b8ee70b81",
        "https://git.kernel.org/stable/c/fde33ab3c052a302ee8a0b739094b88ceae4dd67",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/38xxx/CVE-2025-38013.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2025-38013",
        "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-2025-38013.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2025-38013",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": null
  },
  "source_id": "core-osv",
  "document_id": 500280,
  "published_at": "2025-06-18T09:28:22.672+00:00"
}