ghsa-7f96-m827-q2r2
Vulnerability from github
Published
2024-10-21 18:30
Modified
2024-12-14 21:31
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: Add NULL check for function pointer in dcn20_set_output_transfer_func

This commit adds a null check for the set_output_gamma function pointer in the dcn20_set_output_transfer_func function. Previously, set_output_gamma was being checked for null at line 1030, but then it was being dereferenced without any null check at line 1048. This could potentially lead to a null pointer dereference error if set_output_gamma is null.

To fix this, we now ensure that set_output_gamma is not null before dereferencing it. We do this by adding a null check for set_output_gamma before the call to set_output_gamma at line 1048.

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{
   affected: [],
   aliases: [
      "CVE-2024-49911",
   ],
   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: Add NULL check for function pointer in dcn20_set_output_transfer_func\n\nThis commit adds a null check for the set_output_gamma function pointer\nin the dcn20_set_output_transfer_func function. Previously,\nset_output_gamma was being checked for null at line 1030, but then it\nwas being dereferenced without any null check at line 1048. This could\npotentially lead to a null pointer dereference error if set_output_gamma\nis null.\n\nTo fix this, we now ensure that set_output_gamma is not null before\ndereferencing it. We do this by adding a null check for set_output_gamma\nbefore the call to set_output_gamma at line 1048.",
   id: "GHSA-7f96-m827-q2r2",
   modified: "2024-12-14T21:31:32Z",
   published: "2024-10-21T18:30:57Z",
   references: [
      {
         type: "ADVISORY",
         url: "https://nvd.nist.gov/vuln/detail/CVE-2024-49911",
      },
      {
         type: "WEB",
         url: "https://git.kernel.org/stable/c/02411e9359297512946705b1cd8cf5e6b0806fa0",
      },
      {
         type: "WEB",
         url: "https://git.kernel.org/stable/c/62ed6f0f198da04e884062264df308277628004f",
      },
      {
         type: "WEB",
         url: "https://git.kernel.org/stable/c/827380b114f83c30b3e56d1a675980b6d65f7c88",
      },
      {
         type: "WEB",
         url: "https://git.kernel.org/stable/c/8c854138b593efbbd8fa46a25f3288c121c1d1a1",
      },
      {
         type: "WEB",
         url: "https://git.kernel.org/stable/c/e8a24767899c86f4c5f1e4d3b2608942d054900f",
      },
   ],
   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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