{
  "affected": [
    {
      "ecosystem_specific": {
        "urgency": "not yet assigned"
      },
      "package": {
        "ecosystem": "Debian:14",
        "name": "linux"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "7.0.12-1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "details": "In the Linux kernel, the following vulnerability has been resolved:  net: ethtool: phy: avoid NULL deref when PHY driver is unbound  phydev-\u003edrv can become NULL while the phy_device is still attached to its net_device, namely after the PHY driver is unbound via sysfs:  \techo \u003cmdio_id\u003e \u003e /sys/bus/mdio_bus/drivers/\u003cphy_drv\u003e/unbind  phy_remove() clears phydev-\u003edrv but doesn't call phy_detach(), so the phy_device stays in the link topology xarray and ethnl_req_get_phydev() still hands it back. ETHTOOL_MSG_PHY_GET then oopses on:  \trep_data-\u003edrvname = kstrdup(phydev-\u003edrv-\u003ename, GFP_KERNEL);  drvname is already treated as optional by phy_reply_size(), phy_fill_reply() and phy_cleanup_data(), so just skip the allocation when there is no driver bound.",
  "id": "DEBIAN-CVE-2026-64228",
  "modified": "2026-09-14T16:47:31.316719188Z",
  "published": "2026-07-24T16:16:51.913Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://security-tracker.debian.org/tracker/CVE-2026-64228"
    }
  ],
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ],
  "upstream": [
    "CVE-2026-64228"
  ]
}