{
  "schema_version": "1.6.1",
  "id": "RPI-CVE-2024-26672",
  "modified": "2026-10-07T17:22:01Z",
  "upstream": [
    "CVE-2024-26672"
  ],
  "published": "2024-04-02T06:49:49Z",
  "summary": "drm/amdgpu: Fix variable 'mca_funcs' dereferenced before NULL check in 'amdgpu_mca_smu_get_mca_entry()'",
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/amdgpu: Fix variable 'mca_funcs' dereferenced before NULL check in 'amdgpu_mca_smu_get_mca_entry()'\n\nFixes the below:\n\ndrivers/gpu/drm/amd/amdgpu/amdgpu_mca.c:377 amdgpu_mca_smu_get_mca_entry() warn: variable dereferenced before check 'mca_funcs' (see line 368)\n\n357 int amdgpu_mca_smu_get_mca_entry(struct amdgpu_device *adev,\n\t\t\t\t     enum amdgpu_mca_error_type type,\n358                                  int idx, struct mca_bank_entry *entry)\n359 {\n360         const struct amdgpu_mca_smu_funcs *mca_funcs =\n\t\t\t\t\t\tadev->mca.mca_funcs;\n361         int count;\n362\n363         switch (type) {\n364         case AMDGPU_MCA_ERROR_TYPE_UE:\n365                 count = mca_funcs->max_ue_count;\n\nmca_funcs is dereferenced here.\n\n366                 break;\n367         case AMDGPU_MCA_ERROR_TYPE_CE:\n368                 count = mca_funcs->max_ce_count;\n\nmca_funcs is dereferenced here.\n\n369                 break;\n370         default:\n371                 return -EINVAL;\n372         }\n373\n374         if (idx >= count)\n375                 return -EINVAL;\n376\n377         if (mca_funcs && mca_funcs->mca_get_mca_entry)\n\t        ^^^^^^^^^\n\nChecked too late!",
  "affected": [
    {
      "package": {
        "ecosystem": "Raspberry Pi OS:12",
        "name": "linux"
      },
      "versions": [
        "1:6.1.47-1+rpt4"
      ],
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "linux-image-6.1.0-rpi3-rpi-2712",
            "binary_version": "1:6.1.47-1+rpt4"
          },
          {
            "binary_name": "linux-image-6.1.0-rpi3-rpi-v6",
            "binary_version": "1:6.1.47-1+rpt4"
          },
          {
            "binary_name": "linux-image-6.1.0-rpi3-rpi-v7",
            "binary_version": "1:6.1.47-1+rpt4"
          },
          {
            "binary_name": "linux-image-6.1.0-rpi3-rpi-v7l",
            "binary_version": "1:6.1.47-1+rpt4"
          },
          {
            "binary_name": "linux-image-6.1.0-rpi3-rpi-v8",
            "binary_version": "1:6.1.47-1+rpt4"
          }
        ]
      },
      "database_specific": {
        "per_version": {
          "1:6.1.47-1+rpt4": {
            "linux_commit": "655fc658a15ae7a6f37103754adb39ba52a9a14e",
            "upstream_version": "6.1.47",
            "assessment": "commit ancestry (strak rule)",
            "upstream_fixed": null,
            "compiled_filter": false
          }
        }
      }
    }
  ],
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://www.cve.org/CVERecord?id=CVE-2024-26672"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/7b5d58c07024516c0e81b95e98f37710cf402c53"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/4f32504a2f85a7b40fe149436881381f48e9c0c0"
    }
  ],
  "database_specific": {
    "source": "https://git.kernel.org/pub/scm/linux/security/vulns.git",
    "upstream_modified": "2026-05-12T04:54:46Z"
  }
}