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->clk_mgr\n\n[WHY & HOW]\ndc->clk_mgr is null checked previously in the same function, indicating\nit might be null.\n\nPassing \"dc\" to \"dc->hwss.apply_idle_power_optimizations\", which\ndereferences null \"dc->clk_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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