ghsa-q56f-p5h4-mjcf
Vulnerability from github
Published
2024-10-21 12:30
Modified
2025-11-03 18:31
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:

drm/amd/display: Check link_res->hpo_dp_link_enc before using it

[WHAT & HOW] Functions dp_enable_link_phy and dp_disable_link_phy can pass link_res without initializing hpo_dp_link_enc and it is necessary to check for null before dereferencing.

This fixes 2 FORWARD_NULL issues reported by Coverity.

Show details on source website

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{
  "affected": [],
  "aliases": [
    "CVE-2024-47704"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-476"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2024-10-21T12:15:06Z",
    "severity": "MODERATE"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/amd/display: Check link_res-\u003ehpo_dp_link_enc before using it\n\n[WHAT \u0026 HOW]\nFunctions dp_enable_link_phy and dp_disable_link_phy can pass link_res\nwithout initializing hpo_dp_link_enc and it is necessary to check for\nnull before dereferencing.\n\nThis fixes 2 FORWARD_NULL issues reported by Coverity.",
  "id": "GHSA-q56f-p5h4-mjcf",
  "modified": "2025-11-03T18:31:15Z",
  "published": "2024-10-21T12:30:55Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2024-47704"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/0508a4e95ac1aefd851ceb97ea050d8abb93262c"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/0beca868cde8742240cd0038141c30482d2b7eb8"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/530e29452b955c30cf2102fa4d07420dc6e0c953"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/8c22a62288194f072eb3a51045b700fce1c18d9e"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/be2ca7a2c1561390d28bf2f92654d819659ba510"
    },
    {
      "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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