ghsa-hf5w-7g55-wh36
Vulnerability from github
Published
2025-04-01 18:30
Modified
2025-11-03 21:33
Severity ?
5.5 (Medium) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Details

In the Linux kernel, the following vulnerability has been resolved:

usb: renesas_usbhs: Flush the notify_hotplug_work

When performing continuous unbind/bind operations on the USB drivers available on the Renesas RZ/G2L SoC, a kernel crash with the message "Unable to handle kernel NULL pointer dereference at virtual address" may occur. This issue points to the usbhsc_notify_hotplug() function.

Flush the delayed work to avoid its execution when driver resources are unavailable.

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{
  "affected": [],
  "aliases": [
    "CVE-2025-21917"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-476"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-04-01T16:15:22Z",
    "severity": "MODERATE"
  },
  "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.",
  "id": "GHSA-hf5w-7g55-wh36",
  "modified": "2025-11-03T21:33:22Z",
  "published": "2025-04-01T18:30:51Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-21917"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/3248c1f833f924246cb98ce7da4569133c1b2292"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/394965f90454d6f00fe11879142b720c6c1a872e"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/4ca078084cdd5f32d533311d6a0b63a60dcadd41"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/4cd847a7b630a85493d0294ad9542c21aafaa246"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/552ca6b87e3778f3dd5b87842f95138162e16c82"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/830818c8e70c0364e377f0c243b28061ef7967eb"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/d50f5c0cd949593eb9a3d822b34d7b50046a06b7"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/e5aac1c9b2974636db7ce796ffa6de88fa08335e"
    },
    {
      "type": "WEB",
      "url": "https://lists.debian.org/debian-lts-announce/2025/05/msg00030.html"
    },
    {
      "type": "WEB",
      "url": "https://lists.debian.org/debian-lts-announce/2025/05/msg00045.html"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ]
}


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