GHSA-M2WH-W7W6-M2CJ

Vulnerability from github – Published: 2025-07-25 15:30 – Updated: 2025-12-16 15:30
VLAI
Details

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

drm/amd/display: Add null pointer check for get_first_active_display()

The function mod_hdcp_hdcp1_enable_encryption() calls the function get_first_active_display(), but does not check its return value. The return value is a null pointer if the display list is empty. This will lead to a null pointer dereference in mod_hdcp_hdcp2_enable_encryption().

Add a null pointer check for get_first_active_display() and return MOD_HDCP_STATUS_DISPLAY_NOT_FOUND if the function return null.

Severity
5.5 (Medium)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
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{
  "affected": [],
  "aliases": [
    "CVE-2025-38362"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-476"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-07-25T13:15:25Z",
    "severity": "MODERATE"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/amd/display: Add null pointer check for get_first_active_display()\n\nThe function mod_hdcp_hdcp1_enable_encryption() calls the function\nget_first_active_display(), but does not check its return value.\nThe return value is a null pointer if the display list is empty.\nThis will lead to a null pointer dereference in\nmod_hdcp_hdcp2_enable_encryption().\n\nAdd a null pointer check for get_first_active_display() and return\nMOD_HDCP_STATUS_DISPLAY_NOT_FOUND if the function return null.",
  "id": "GHSA-m2wh-w7w6-m2cj",
  "modified": "2025-12-16T15:30:25Z",
  "published": "2025-07-25T15:30:51Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-38362"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/1ebcdf38887949def1a553ff3e45c98ed95a3cd0"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/34d3e10ab905f06445f8dbd8a3d9697095e71bae"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/4ce9f2dc9ff7cc410e8c5d936ec551e26b9599a9"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/5148c7ea69e9c5bf2f05081190f45ba96d3d1e7a"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/b3005145eab98d36777660b8893466e4f630ae1c"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/c3e9826a22027a21d998d3e64882fa377b613006"
    },
    {
      "type": "WEB",
      "url": "https://lists.debian.org/debian-lts-announce/2025/10/msg00008.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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