FKIE_CVE-2024-26647

Vulnerability from fkie_nvd - Published: 2024-03-26 18:15 - Updated: 2025-01-07 20:15
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 late derefrence 'dsc' check in 'link_set_dsc_pps_packet()' In link_set_dsc_pps_packet(), 'struct display_stream_compressor *dsc' was dereferenced in a DC_LOGGER_INIT(dsc->ctx->logger); before the 'dsc' NULL pointer check. Fixes the below: drivers/gpu/drm/amd/amdgpu/../display/dc/link/link_dpms.c:905 link_set_dsc_pps_packet() warn: variable dereferenced before check 'dsc' (see line 903)
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/3bb9b1f958c3d986ed90a3ff009f1e77e9553207Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/6aa5ede6665122f4c8abce3c6eba06b49e54d25cPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/cf656fc7276e5b3709a81bc9d9639459be2b2647Patch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/3bb9b1f958c3d986ed90a3ff009f1e77e9553207Patch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/6aa5ede6665122f4c8abce3c6eba06b49e54d25cPatch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/cf656fc7276e5b3709a81bc9d9639459be2b2647Patch
Impacted products
Vendor Product Version
linux linux_kernel *
linux linux_kernel *
To clipboard 

{
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "142FB4DC-E1A5-4DD2-8150-C5741C441196",
              "versionEndExcluding": "6.6.15",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "58FD5308-148A-40D3-B36A-0CA6B434A8BF",
              "versionEndExcluding": "6.7.3",
              "versionStartIncluding": "6.7",
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          "negate": false,
          "operator": "OR"
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  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/amd/display: Fix late derefrence \u0027dsc\u0027 check in \u0027link_set_dsc_pps_packet()\u0027\n\nIn link_set_dsc_pps_packet(), \u0027struct display_stream_compressor *dsc\u0027\nwas dereferenced in a DC_LOGGER_INIT(dsc-\u003ectx-\u003elogger); before the \u0027dsc\u0027\nNULL pointer check.\n\nFixes the below:\ndrivers/gpu/drm/amd/amdgpu/../display/dc/link/link_dpms.c:905 link_set_dsc_pps_packet() warn: variable dereferenced before check \u0027dsc\u0027 (see line 903)"
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, se resolvi\u00f3 la siguiente vulnerabilidad: drm/amd/display: se corrigi\u00f3 la verificaci\u00f3n de desrefrence tard\u00eda \u0027dsc\u0027 en \u0027link_set_dsc_pps_packet()\u0027. En link_set_dsc_pps_packet(), se elimin\u00f3 la referencia a \u0027struct display_stream_compressor *dsc\u0027 en un DC_LOGGER_INIT(dsc- \u0026gt;ctx-\u0026gt;registrador); antes de la verificaci\u00f3n del puntero NULL \u0027dsc\u0027. Corrige lo siguiente: drivers/gpu/drm/amd/amdgpu/../display/dc/link/link_dpms.c:905 link_set_dsc_pps_packet() advertencia: variable desreferenciada antes de verificar \u0027dsc\u0027 (consulte la l\u00ednea 903)"
    }
  ],
  "id": "CVE-2024-26647",
  "lastModified": "2025-01-07T20:15:48.587",
  "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": "nvd@nist.gov",
        "type": "Primary"
      }
    ]
  },
  "published": "2024-03-26T18:15:10.063",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
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      "url": "https://git.kernel.org/stable/c/3bb9b1f958c3d986ed90a3ff009f1e77e9553207"
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      "tags": [
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      "url": "https://git.kernel.org/stable/c/3bb9b1f958c3d986ed90a3ff009f1e77e9553207"
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  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-476"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}


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  • Confirmed: The vulnerability has been validated from an analyst's perspective.
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