ghsa-4f6f-gr2g-x76p
Vulnerability from github
Published
2024-10-21 18:30
Modified
2024-10-24 06:30
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 null pointers before using dc->clk_mgr

[WHY & HOW] dc->clk_mgr is null checked previously in the same function, indicating it might be null.

Passing "dc" to "dc->hwss.apply_idle_power_optimizations", which dereferences null "dc->clk_mgr". (The function pointer resolves to "dcn35_apply_idle_power_optimizations".)

This fixes 1 FORWARD_NULL issue reported by Coverity.

Show details on source website

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{
  "affected": [],
  "aliases": [
    "CVE-2024-49907"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-476"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2024-10-21T18:15:13Z",
    "severity": "MODERATE"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/amd/display: Check null pointers before using dc-\u003eclk_mgr\n\n[WHY \u0026 HOW]\ndc-\u003eclk_mgr is null checked previously in the same function, indicating\nit might be null.\n\nPassing \"dc\" to \"dc-\u003ehwss.apply_idle_power_optimizations\", which\ndereferences null \"dc-\u003eclk_mgr\". (The function pointer resolves to\n\"dcn35_apply_idle_power_optimizations\".)\n\nThis fixes 1 FORWARD_NULL issue reported by Coverity.",
  "id": "GHSA-4f6f-gr2g-x76p",
  "modified": "2024-10-24T06:30:29Z",
  "published": "2024-10-21T18:30:57Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2024-49907"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/3f7e533c10db3d0158709a99e2129ff63add6bcd"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/5ba3fbf75b243b2863a8be9e7c393e003d3b88f3"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/8d54001f8dccd56146973f23f3ab2ba037a21251"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/95d9e0803e51d5a24276b7643b244c7477daf463"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/9641bc4adf8446034e490ed543ae7e9833cfbdf5"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/a2773e0a4b79e7a6463abdffaf8cc4f24428ba18"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/a545a9403e04c6e17fdc04a26a61d9feebbba106"
    }
  ],
  "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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