net: macb: drop in-flight Tx SKBs on close

{
  "id": "dfbd7e9b586769f6ce55bc336d713be81c7b1834b90254fbd537b808e33c7d46",
  "url": "https://osv.dev/vulnerability/CVE-2026-72017",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "net: macb: drop in-flight Tx SKBs on close",
    "summary": "In the Linux kernel, the following vulnerability has been resolved: net: macb: drop in-flight Tx SKBs on close The MACB driver has since forever leaked the outgoing SKBs that have not yet been marked as completed. They live in queue->tx_skb which gets freed without remorse nor checking. macb_free_consistent() gets called in a few codepaths, but only close will trigger the added expressions. In macb_open() and macb_alloc_consistent() failure cases, queues' tx_skb just got allocated and are empty.",
    "evidence": "osv:CVE-2026-72017",
    "products": [
      {
        "name": {
          "value": "Kernel",
          "evidence": "/affected/1/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "6.1.184",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "6.6.148",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "6.12.101",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "6.18.40",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "7.1.5",
            "evidence": "/affected/1/ranges"
          }
        ],
        "affected_versions": []
      }
    ],
    "severity": "unknown",
    "structured": {
      "id": "CVE-2026-72017",
      "aliases": [
        "CVE-2026-72017"
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
              "type": "GIT",
              "events": [
                {
                  "introduced": "89e5785fc8a6b9eafd37f2318a9a76d479c796be"
                },
                {
                  "fixed": "0e9797dc4ebdefe1b7f931b1f92d5e98e5dbf655"
                },
                {
                  "fixed": "6124bd785073659c99385094657b77382ebce11b"
                },
                {
                  "fixed": "2143fdc0ce27adbb1caaa1a97e0bfb9f3750aef4"
                },
                {
                  "fixed": "26b131b2d5b55a81ef6182769d28105a870c0eb2"
                },
                {
                  "fixed": "109241d9880488aafd8e104832b4d4859ad57244"
                },
                {
                  "fixed": "27f575836cfebbf872dec020428742b10650a955"
                }
              ]
            }
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-72017.json"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "2.6.20"
                },
                {
                  "fixed": "6.1.184"
                }
              ]
            },
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "6.2.0"
                },
                {
                  "fixed": "6.6.148"
                }
              ]
            },
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "6.7.0"
                },
                {
                  "fixed": "6.12.101"
                }
              ]
            },
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "6.13.0"
                },
                {
                  "fixed": "6.18.40"
                }
              ]
            },
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "6.19.0"
                },
                {
                  "fixed": "7.1.5"
                }
              ]
            }
          ],
          "package": {
            "name": "Kernel",
            "ecosystem": "Linux"
          },
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-72017.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:32.422591533Z",
      "provider": "osv",
      "references": [
        "https://git.kernel.org/stable/c/0e9797dc4ebdefe1b7f931b1f92d5e98e5dbf655",
        "https://git.kernel.org/stable/c/109241d9880488aafd8e104832b4d4859ad57244",
        "https://git.kernel.org/stable/c/2143fdc0ce27adbb1caaa1a97e0bfb9f3750aef4",
        "https://git.kernel.org/stable/c/26b131b2d5b55a81ef6182769d28105a870c0eb2",
        "https://git.kernel.org/stable/c/27f575836cfebbf872dec020428742b10650a955",
        "https://git.kernel.org/stable/c/6124bd785073659c99385094657b77382ebce11b",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/72xxx/CVE-2026-72017.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-72017",
        "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/2026/72xxx/CVE-2026-72017.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2026-72017",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": null
  },
  "source_id": "core-osv",
  "document_id": 499379,
  "published_at": "2026-08-15T05:51:44.698+00:00"
}