fkie_cve-2024-27041
Vulnerability from fkie_nvd
Published
2024-05-01 13:15
Modified
2024-11-21 09:03
Severity ?
5.5 (Medium) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Summary
In the Linux kernel, the following vulnerability has been resolved: drm/amd/display: fix NULL checks for adev->dm.dc in amdgpu_dm_fini() Since 'adev->dm.dc' in amdgpu_dm_fini() might turn out to be NULL before the call to dc_enable_dmub_notifications(), check beforehand to ensure there will not be a possible NULL-ptr-deref there. Also, since commit 1e88eb1b2c25 ("drm/amd/display: Drop CONFIG_DRM_AMD_DC_HDCP") there are two separate checks for NULL in 'adev->dm.dc' before dc_deinit_callbacks() and dc_dmub_srv_destroy(). Clean up by combining them all under one 'if'. Found by Linux Verification Center (linuxtesting.org) with static analysis tool SVACE.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/1c62697e4086de988b31124fb8c79c244ea05f2b
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/2a3cfb9a24a28da9cc13d2c525a76548865e182c
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/ca2eb375db76fd50f31afdd67d6ca4f833254957
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/e040f1fbe9abae91b12b074cfc3bbb5367b79811
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/1c62697e4086de988b31124fb8c79c244ea05f2b
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/2a3cfb9a24a28da9cc13d2c525a76548865e182c
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/ca2eb375db76fd50f31afdd67d6ca4f833254957
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/e040f1fbe9abae91b12b074cfc3bbb5367b79811
Impacted products
Vendor Product Version


To clipboard 

{
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/amd/display: fix NULL checks for adev-\u003edm.dc in amdgpu_dm_fini()\n\nSince \u0027adev-\u003edm.dc\u0027 in amdgpu_dm_fini() might turn out to be NULL\nbefore the call to dc_enable_dmub_notifications(), check\nbeforehand to ensure there will not be a possible NULL-ptr-deref\nthere.\n\nAlso, since commit 1e88eb1b2c25 (\"drm/amd/display: Drop\nCONFIG_DRM_AMD_DC_HDCP\") there are two separate checks for NULL in\n\u0027adev-\u003edm.dc\u0027 before dc_deinit_callbacks() and dc_dmub_srv_destroy().\nClean up by combining them all under one \u0027if\u0027.\n\nFound by Linux Verification Center (linuxtesting.org) with static\nanalysis tool SVACE."
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: drm/amd/display: corrige comprobaciones NULL para adev-\u0026gt;dm.dc en amdgpu_dm_fini() Dado que \u0027adev-\u0026gt;dm.dc\u0027 en amdgpu_dm_fini() podr\u00eda resultar ser NULL antes de llamar a dc_enable_dmub_notifications(), verifique de antemano para asegurarse de que no habr\u00e1 un posible NULL-ptr-deref all\u00ed. Adem\u00e1s, desde la confirmaci\u00f3n 1e88eb1b2c25 (\"drm/amd/display: Drop CONFIG_DRM_AMD_DC_HDCP\") hay dos comprobaciones separadas para NULL en \u0027adev-\u0026gt;dm.dc\u0027 antes de dc_deinit_callbacks() y dc_dmub_srv_destroy(). Limpia combin\u00e1ndolos todos bajo un solo \"si\". Encontrado por el Centro de verificaci\u00f3n de Linux (linuxtesting.org) con la herramienta de an\u00e1lisis est\u00e1tico SVACE."
    }
  ],
  "id": "CVE-2024-27041",
  "lastModified": "2024-11-21T09:03:43.730",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "LOCAL",
          "availabilityImpact": "HIGH",
          "baseScore": 5.5,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 1.8,
        "impactScore": 3.6,
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "type": "Secondary"
      }
    ]
  },
  "published": "2024-05-01T13:15:49.647",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/1c62697e4086de988b31124fb8c79c244ea05f2b"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/2a3cfb9a24a28da9cc13d2c525a76548865e182c"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/ca2eb375db76fd50f31afdd67d6ca4f833254957"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/e040f1fbe9abae91b12b074cfc3bbb5367b79811"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "https://git.kernel.org/stable/c/1c62697e4086de988b31124fb8c79c244ea05f2b"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "https://git.kernel.org/stable/c/2a3cfb9a24a28da9cc13d2c525a76548865e182c"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "https://git.kernel.org/stable/c/ca2eb375db76fd50f31afdd67d6ca4f833254957"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "https://git.kernel.org/stable/c/e040f1fbe9abae91b12b074cfc3bbb5367b79811"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Awaiting Analysis",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-476"
        }
      ],
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
      "type": "Secondary"
    }
  ]
}


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