{
  "schema_version": "1.6.1",
  "id": "RPI-CVE-2025-21917",
  "modified": "2026-10-07T17:22:01Z",
  "upstream": [
    "CVE-2025-21917"
  ],
  "published": "2025-04-01T15:40:16Z",
  "summary": "usb: renesas_usbhs: Flush the notify_hotplug_work",
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nusb: renesas_usbhs: Flush the notify_hotplug_work\n\nWhen performing continuous unbind/bind operations on the USB drivers\navailable on the Renesas RZ/G2L SoC, a kernel crash with the message\n\"Unable to handle kernel NULL pointer dereference at virtual address\"\nmay occur. This issue points to the usbhsc_notify_hotplug() function.\n\nFlush the delayed work to avoid its execution when driver resources are\nunavailable.",
  "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": "6.1.131",
            "compiled_filter": false
          }
        }
      }
    }
  ],
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://www.cve.org/CVERecord?id=CVE-2025-21917"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/4cd847a7b630a85493d0294ad9542c21aafaa246"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/394965f90454d6f00fe11879142b720c6c1a872e"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/3248c1f833f924246cb98ce7da4569133c1b2292"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/4ca078084cdd5f32d533311d6a0b63a60dcadd41"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/d50f5c0cd949593eb9a3d822b34d7b50046a06b7"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/e5aac1c9b2974636db7ce796ffa6de88fa08335e"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/830818c8e70c0364e377f0c243b28061ef7967eb"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/552ca6b87e3778f3dd5b87842f95138162e16c82"
    }
  ],
  "database_specific": {
    "source": "https://git.kernel.org/pub/scm/linux/security/vulns.git",
    "upstream_modified": "2026-05-12T04:54:46Z"
  }
}