{
  "schema_version": "1.6.1",
  "id": "RPI-CVE-2025-37989",
  "modified": "2026-10-07T17:22:01Z",
  "upstream": [
    "CVE-2025-37989"
  ],
  "published": "2025-05-20T17:07:46Z",
  "summary": "net: phy: leds: fix memory leak",
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: phy: leds: fix memory leak\n\nA network restart test on a router led to an out-of-memory condition,\nwhich was traced to a memory leak in the PHY LED trigger code.\n\nThe root cause is misuse of the devm API. The registration function\n(phy_led_triggers_register) is called from phy_attach_direct, not\nphy_probe, and the unregister function (phy_led_triggers_unregister)\nis called from phy_detach, not phy_remove. This means the register and\nunregister functions can be called multiple times for the same PHY\ndevice, but devm-allocated memory is not freed until the driver is\nunbound.\n\nThis also prevents kmemleak from detecting the leak, as the devm API\ninternally stores the allocated pointer.\n\nFix this by replacing devm_kzalloc/devm_kcalloc with standard\nkzalloc/kcalloc, and add the corresponding kfree calls in the unregister\npath.",
  "affected": [
    {
      "package": {
        "ecosystem": "Raspberry Pi OS:12",
        "name": "linux"
      },
      "versions": [
        "1:6.1.47-1+rpt4"
      ],
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "linux-image-6.1.0-rpi3-rpi-2712",
            "binary_version": "1:6.1.47-1+rpt4"
          },
          {
            "binary_name": "linux-image-6.1.0-rpi3-rpi-v6",
            "binary_version": "1:6.1.47-1+rpt4"
          },
          {
            "binary_name": "linux-image-6.1.0-rpi3-rpi-v7",
            "binary_version": "1:6.1.47-1+rpt4"
          },
          {
            "binary_name": "linux-image-6.1.0-rpi3-rpi-v7l",
            "binary_version": "1:6.1.47-1+rpt4"
          },
          {
            "binary_name": "linux-image-6.1.0-rpi3-rpi-v8",
            "binary_version": "1:6.1.47-1+rpt4"
          }
        ]
      },
      "database_specific": {
        "per_version": {
          "1:6.1.47-1+rpt4": {
            "linux_commit": "655fc658a15ae7a6f37103754adb39ba52a9a14e",
            "upstream_version": "6.1.47",
            "assessment": "commit ancestry (strak rule)",
            "upstream_fixed": "6.1.136",
            "compiled_filter": false
          }
        }
      }
    }
  ],
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://www.cve.org/CVERecord?id=CVE-2025-37989"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/966d6494e2ed9be9052fcd9815afba830896aaf8"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/95bed65cc0eb2a610550abf849a8b94374da80a7"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/663c3da86e807c6c07ed48f911c7526fad6fe1ff"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/f41f097f68a33d392579885426d0734a81219501"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/618541a6cc1511064dfa58c89b3445e21844092f"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/41143e71052a00d654c15dc924fda50c1e7357d0"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/7f3d5880800f962c347777c4f8358f29f5fc403c"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/b7f0ee992adf601aa00c252418266177eb7ac2bc"
    }
  ],
  "database_specific": {
    "source": "https://git.kernel.org/pub/scm/linux/security/vulns.git",
    "upstream_modified": "2026-05-12T04:54:46Z"
  }
}