{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "6ef398ea60d931b97d69ed080bd0bd00fac38ec6"
            },
            {
              "fixed": "2040eb83f6ada148fb32dd98b943a498005d79f2"
            },
            {
              "fixed": "f2782ddac82c70df313012da5f71f1f06b5553ca"
            },
            {
              "fixed": "b579f3a73da7a7e74213558f4cc3d865c30aaa78"
            },
            {
              "fixed": "289499907399c5a9f2ed82cb34df49112bb8488f"
            },
            {
              "fixed": "a212fc08f5c48a16a94092bf0a9a8b7cf4483b11"
            },
            {
              "fixed": "3d4ef05266ab16d8ef7dd21658a557801eb78704"
            },
            {
              "fixed": "49bdf6bbb21b9c6e3f4d0c1910bf0ef98424be95"
            },
            {
              "fixed": "9a1730245e416d11ad5c0f2c100061d61cc43f60"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Linux",
        "name": "Kernel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "3.19.0"
            },
            {
              "fixed": "5.10.258"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "5.11.0"
            },
            {
              "fixed": "5.15.209"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "5.16.0"
            },
            {
              "fixed": "6.1.175"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.2.0"
            },
            {
              "fixed": "6.6.142"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.7.0"
            },
            {
              "fixed": "6.12.92"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.13.0"
            },
            {
              "fixed": "6.18.34"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.19.0"
            },
            {
              "fixed": "7.0.11"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/64xxx/CVE-2026-64125.json"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: bcmgenet: keep RBUF EEE/PM disabled\n\nSetting RBUF_EEE_EN | RBUF_PM_EN in RBUF_ENERGY_CTRL breaks the RX\npath on GENET hardware once MAC EEE becomes active. RX traffic stops\nflowing while the link stays up and the usual descriptor/RX error\ncounters remain quiet. In that state the MAC still accepts frames\n(rbuf_ovflow_cnt keeps climbing) but RBUF no longer forwards them to\nDMA, so rx_packets is no longer incremented at the netdev level. On\nsome boards the corruption ends up as a paging fault in\nskb_release_data via bcmgenet_rx_poll on an LPI exit.\n\nReproduced on Pi 4B (BCM2711 + BCM54213PE) and confirmed by Florian\nFainelli on an internal Broadcom 4908-family board with the same crash\nsignature. RBUF_PM_EN is not publicly documented.\n\nThis shows up more often now that phy_support_eee() enables EEE by\ndefault, but it also affects older kernels as soon as TX LPI is\nturned on via ethtool, so it is not specific to recent changes.\n\nAlways clear RBUF_EEE_EN | RBUF_PM_EN in bcmgenet_eee_enable_set so\nthe bits stay off across resets. UMAC and TBUF setup is left alone so\nTX-side EEE keeps working.",
  "id": "CVE-2026-64125",
  "modified": "2026-07-21T03:42:11.827026416Z",
  "published": "2026-07-19T15:40:22.590Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/2040eb83f6ada148fb32dd98b943a498005d79f2"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/289499907399c5a9f2ed82cb34df49112bb8488f"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/3d4ef05266ab16d8ef7dd21658a557801eb78704"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/49bdf6bbb21b9c6e3f4d0c1910bf0ef98424be95"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/9a1730245e416d11ad5c0f2c100061d61cc43f60"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/a212fc08f5c48a16a94092bf0a9a8b7cf4483b11"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/b579f3a73da7a7e74213558f4cc3d865c30aaa78"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/f2782ddac82c70df313012da5f71f1f06b5553ca"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/64xxx/CVE-2026-64125.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-64125"
    },
    {
      "type": "PACKAGE",
      "url": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
    }
  ],
  "schema_version": "1.8.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "net: bcmgenet: keep RBUF EEE/PM disabled"
}