ghsa-wv4m-6p5m-fm53
Vulnerability from github
Published
2025-09-05 18:31
Modified
2025-09-05 18:31
Details

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

drm/amd/display: Add null pointer check in mod_hdcp_hdcp1_create_session()

The function mod_hdcp_hdcp1_create_session() 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.

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

This is similar to the commit c3e9826a2202 ("drm/amd/display: Add null pointer check for get_first_active_display()").

(cherry picked from commit 5e43eb3cd731649c4f8b9134f857be62a416c893)

Show details on source website

To clipboard 

{
  "affected": [],
  "aliases": [
    "CVE-2025-39675"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-09-05T18:15:43Z",
    "severity": null
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/amd/display: Add null pointer check in mod_hdcp_hdcp1_create_session()\n\nThe function mod_hdcp_hdcp1_create_session() 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.\n\nAdd a null pointer check for get_first_active_display() and return\nMOD_HDCP_STATUS_DISPLAY_NOT_FOUND if the function return null.\n\nThis is similar to the commit c3e9826a2202\n(\"drm/amd/display: Add null pointer check for get_first_active_display()\").\n\n(cherry picked from commit 5e43eb3cd731649c4f8b9134f857be62a416c893)",
  "id": "GHSA-wv4m-6p5m-fm53",
  "modified": "2025-09-05T18:31:26Z",
  "published": "2025-09-05T18:31:26Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-39675"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/2af45aadb7b5d3852c76e2d1e985289ada6f48bf"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/2ee86b764c54e0d6a5464fb023b630fdf20869cd"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/7a2ca2ea64b1b63c8baa94a8f5deb70b2248d119"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/857b8387a9777e42b36e0400be99b54c251eaf9a"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/97fc94c5fd3c6ac5a13e457d38ee247737b8c4bd"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/ee0373b20bb67b1f00a1b25ccd24c8ac996b6446"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}


Log in or create an account to share your comment.




Tags
Taxonomy of the tags.




Sightings

Author Source Type Date

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
  • Confirmed: The vulnerability is confirmed from an analyst perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
  • Patched: This vulnerability was successfully patched by the user reporting the sighting.
  • Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
  • Not confirmed: The user expresses doubt about the veracity of the vulnerability.
  • Not patched: This vulnerability was not successfully patched by the user reporting the sighting.