CVE-2024-26647
Vulnerability from cvelistv5
Published
2024-03-26 17:50
Modified
2024-11-05 09:13
Severity ?
Summary
drm/amd/display: Fix late derefrence 'dsc' check in 'link_set_dsc_pps_packet()'
Impacted products
LinuxLinux
LinuxLinux
Show details on NVD website


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        "metrics": [
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            "other": {
              "content": {
                "id": "CVE-2024-26647",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2024-05-29T16:18:46.186544Z",
                "version": "2.0.3"
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              "type": "ssvc"
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        "providerMetadata": {
          "dateUpdated": "2024-06-04T17:49:31.372Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
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        "title": "CISA ADP Vulnrichment"
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        "providerMetadata": {
          "dateUpdated": "2024-08-02T00:07:19.754Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
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        "references": [
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            "url": "https://git.kernel.org/stable/c/6aa5ede6665122f4c8abce3c6eba06b49e54d25c"
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            "url": "https://git.kernel.org/stable/c/cf656fc7276e5b3709a81bc9d9639459be2b2647"
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            "url": "https://git.kernel.org/stable/c/3bb9b1f958c3d986ed90a3ff009f1e77e9553207"
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        "title": "CVE Program Container"
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    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/gpu/drm/amd/display/dc/link/link_dpms.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
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              "status": "affected",
              "version": "1da177e4c3f4",
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          "product": "Linux",
          "programFiles": [
            "drivers/gpu/drm/amd/display/dc/link/link_dpms.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.15",
              "versionType": "semver"
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              "status": "unaffected",
              "version": "6.7.3",
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              "status": "unaffected",
              "version": "6.8",
              "versionType": "original_commit_for_fix"
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      "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)"
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        "dateUpdated": "2024-11-05T09:13:10.476Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
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      "references": [
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          "url": "https://git.kernel.org/stable/c/6aa5ede6665122f4c8abce3c6eba06b49e54d25c"
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          "url": "https://git.kernel.org/stable/c/cf656fc7276e5b3709a81bc9d9639459be2b2647"
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        {
          "url": "https://git.kernel.org/stable/c/3bb9b1f958c3d986ed90a3ff009f1e77e9553207"
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      ],
      "title": "drm/amd/display: Fix late derefrence \u0027dsc\u0027 check in \u0027link_set_dsc_pps_packet()\u0027",
      "x_generator": {
        "engine": "bippy-9e1c9544281a"
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  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2024-26647",
    "datePublished": "2024-03-26T17:50:01.057Z",
    "dateReserved": "2024-02-19T14:20:24.138Z",
    "dateUpdated": "2024-11-05T09:13:10.476Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1",
  "meta": {
    "nvd": "{\"cve\":{\"id\":\"CVE-2024-26647\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2024-03-26T18:15:10.063\",\"lastModified\":\"2024-03-27T12:29:41.530\",\"vulnStatus\":\"Awaiting Analysis\",\"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)\"}],\"metrics\":{},\"references\":[{\"url\":\"https://git.kernel.org/stable/c/3bb9b1f958c3d986ed90a3ff009f1e77e9553207\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/6aa5ede6665122f4c8abce3c6eba06b49e54d25c\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/cf656fc7276e5b3709a81bc9d9639459be2b2647\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}]}}"
  }
}


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