net: bcmgenet: restore the hardware filters on open

{
  "id": "b3b84cb0a6c474132b90fc0b4e09d6c01d6ca040ebe0f780816a1142191eeee3",
  "url": "https://osv.dev/vulnerability/CVE-2026-98304",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "net: bcmgenet: restore the hardware filters on open",
    "summary": "In the Linux kernel, the following vulnerability has been resolved: net: bcmgenet: restore the hardware filters on open bcmgenet_hfb_init() runs INIT_LIST_HEAD() on priv->rxnfc_list, which drops every rule off the list, and bcmgenet_open() calls it on each ifup. Every rule the user configured is silently lost: # ethtool -N eth0 flow-type ether dst $MAC action 0 Added rule with ID 0 # ethtool -n eth0 | grep -c Filter: 1 # ip link set eth0 down && ip link set eth0 up # ethtool -n eth0 | grep -c Filter: 0 Initialise the lists once at probe and restore the rules on open, as bcmgenet_resume() already does.",
    "evidence": "osv:CVE-2026-98304",
    "products": [
      {
        "name": {
          "value": "Kernel",
          "evidence": "/affected/1/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "6.18.54",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "7.2.8",
            "evidence": "/affected/1/ranges"
          }
        ],
        "affected_versions": []
      }
    ],
    "severity": "unknown",
    "structured": {
      "id": "CVE-2026-98304",
      "aliases": [
        "CVE-2026-98304"
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
              "type": "GIT",
              "events": [
                {
                  "introduced": "3e370952287c55e5fd240cb8bb41ef8acff8829d"
                },
                {
                  "fixed": "56db7ec462d6a2b886e299ad835109c089606969"
                },
                {
                  "fixed": "906140955c8debde65afe12e594e04c49a61b0d9"
                },
                {
                  "fixed": "23ca4ddc4fce2c233a49e9fd34d4b5b02bd7324e"
                }
              ]
            }
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-98304.json"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "5.8.0"
                },
                {
                  "fixed": "6.18.54"
                }
              ]
            },
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "6.19.0"
                },
                {
                  "fixed": "7.2.8"
                }
              ]
            }
          ],
          "package": {
            "name": "Kernel",
            "ecosystem": "Linux"
          },
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-98304.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:49.416142308Z",
      "provider": "osv",
      "references": [
        "https://git.kernel.org/stable/c/23ca4ddc4fce2c233a49e9fd34d4b5b02bd7324e",
        "https://git.kernel.org/stable/c/56db7ec462d6a2b886e299ad835109c089606969",
        "https://git.kernel.org/stable/c/906140955c8debde65afe12e594e04c49a61b0d9",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/98xxx/CVE-2026-98304.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-98304",
        "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/2026/98xxx/CVE-2026-98304.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2026-98304",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": null
  },
  "source_id": "core-osv",
  "document_id": 518020,
  "published_at": "2026-10-06T08:46:01.353+00:00"
}