CVE-2024-49920 (GCVE-0-2024-49920)

Vulnerability from cvelistv5 – Published: 2024-10-21 18:01 – Updated: 2025-07-11 17:21
VLAI?
Title
drm/amd/display: Check null pointers before multiple uses
Summary
In the Linux kernel, the following vulnerability has been resolved: drm/amd/display: Check null pointers before multiple uses [WHAT & HOW] Poniters, such as stream_enc and dc->bw_vbios, are null checked previously in the same function, so Coverity warns "implies that stream_enc and dc->bw_vbios might be null". They are used multiple times in the subsequent code and need to be checked. This fixes 10 FORWARD_NULL issues reported by Coverity.
Severity ?
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: 4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c , < 26787fb6c2b2ee0d1a7e1574b36f4711ae40fe27 (git)
Affected: 4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c , < fdd5ecbbff751c3b9061d8ebb08e5c96119915b4 (git)
Create a notification for this product.
    Linux Linux Affected: 4.15
Unaffected: 0 , < 4.15 (semver)
Unaffected: 6.11.3 , ≤ 6.11.* (semver)
Unaffected: 6.12 , ≤ * (original_commit_for_fix)
Create a notification for this product.
Show details on NVD website
To clipboard 

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2024-49920",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2024-10-22T13:40:29.310714Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2024-10-22T13:48:44.735Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/gpu/drm/amd/display/dc/core/dc_hw_sequencer.c",
            "drivers/gpu/drm/amd/display/dc/hwss/dcn20/dcn20_hwseq.c",
            "drivers/gpu/drm/amd/display/dc/link/accessories/link_dp_cts.c",
            "drivers/gpu/drm/amd/display/dc/link/hwss/link_hwss_dio.c",
            "drivers/gpu/drm/amd/display/dc/resource/dce112/dce112_resource.c",
            "drivers/gpu/drm/amd/display/dc/resource/dcn32/dcn32_resource.c",
            "drivers/gpu/drm/amd/display/dc/resource/dcn32/dcn32_resource_helpers.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "26787fb6c2b2ee0d1a7e1574b36f4711ae40fe27",
              "status": "affected",
              "version": "4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c",
              "versionType": "git"
            },
            {
              "lessThan": "fdd5ecbbff751c3b9061d8ebb08e5c96119915b4",
              "status": "affected",
              "version": "4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/gpu/drm/amd/display/dc/core/dc_hw_sequencer.c",
            "drivers/gpu/drm/amd/display/dc/hwss/dcn20/dcn20_hwseq.c",
            "drivers/gpu/drm/amd/display/dc/link/accessories/link_dp_cts.c",
            "drivers/gpu/drm/amd/display/dc/link/hwss/link_hwss_dio.c",
            "drivers/gpu/drm/amd/display/dc/resource/dce112/dce112_resource.c",
            "drivers/gpu/drm/amd/display/dc/resource/dcn32/dcn32_resource.c",
            "drivers/gpu/drm/amd/display/dc/resource/dcn32/dcn32_resource_helpers.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "4.15"
            },
            {
              "lessThan": "4.15",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.11.*",
              "status": "unaffected",
              "version": "6.11.3",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.12",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.11.3",
                  "versionStartIncluding": "4.15",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.12",
                  "versionStartIncluding": "4.15",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/amd/display: Check null pointers before multiple uses\n\n[WHAT \u0026 HOW]\nPoniters, such as stream_enc and dc-\u003ebw_vbios, are null checked previously\nin the same function, so Coverity warns \"implies that stream_enc and\ndc-\u003ebw_vbios might be null\". They are used multiple times in the\nsubsequent code and need to be checked.\n\nThis fixes 10 FORWARD_NULL issues reported by Coverity."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-07-11T17:21:19.261Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/26787fb6c2b2ee0d1a7e1574b36f4711ae40fe27"
        },
        {
          "url": "https://git.kernel.org/stable/c/fdd5ecbbff751c3b9061d8ebb08e5c96119915b4"
        }
      ],
      "title": "drm/amd/display: Check null pointers before multiple uses",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2024-49920",
    "datePublished": "2024-10-21T18:01:46.437Z",
    "dateReserved": "2024-10-21T12:17:06.034Z",
    "dateUpdated": "2025-07-11T17:21:19.261Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1",
  "vulnerability-lookup:meta": {
    "vulnrichment": {
      "containers": "{\"adp\": [{\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2024-49920\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"none\"}, {\"Automatable\": \"no\"}, {\"Technical Impact\": \"partial\"}], \"version\": \"2.0.3\", \"timestamp\": \"2024-10-22T13:40:29.310714Z\"}}}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2024-10-22T13:40:32.606Z\"}}], \"cna\": {\"title\": \"drm/amd/display: Check null pointers before multiple uses\", \"affected\": [{\"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\", \"vendor\": \"Linux\", \"product\": \"Linux\", \"versions\": [{\"status\": \"affected\", \"version\": \"4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c\", \"lessThan\": \"26787fb6c2b2ee0d1a7e1574b36f4711ae40fe27\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c\", \"lessThan\": \"fdd5ecbbff751c3b9061d8ebb08e5c96119915b4\", \"versionType\": \"git\"}], \"programFiles\": [\"drivers/gpu/drm/amd/display/dc/core/dc_hw_sequencer.c\", \"drivers/gpu/drm/amd/display/dc/hwss/dcn20/dcn20_hwseq.c\", \"drivers/gpu/drm/amd/display/dc/link/accessories/link_dp_cts.c\", \"drivers/gpu/drm/amd/display/dc/link/hwss/link_hwss_dio.c\", \"drivers/gpu/drm/amd/display/dc/resource/dce112/dce112_resource.c\", \"drivers/gpu/drm/amd/display/dc/resource/dcn32/dcn32_resource.c\", \"drivers/gpu/drm/amd/display/dc/resource/dcn32/dcn32_resource_helpers.c\"], \"defaultStatus\": \"unaffected\"}, {\"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\", \"vendor\": \"Linux\", \"product\": \"Linux\", \"versions\": [{\"status\": \"affected\", \"version\": \"4.15\"}, {\"status\": \"unaffected\", \"version\": \"0\", \"lessThan\": \"4.15\", \"versionType\": \"semver\"}, {\"status\": \"unaffected\", \"version\": \"6.11.3\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.11.*\"}, {\"status\": \"unaffected\", \"version\": \"6.12\", \"versionType\": \"original_commit_for_fix\", \"lessThanOrEqual\": \"*\"}], \"programFiles\": [\"drivers/gpu/drm/amd/display/dc/core/dc_hw_sequencer.c\", \"drivers/gpu/drm/amd/display/dc/hwss/dcn20/dcn20_hwseq.c\", \"drivers/gpu/drm/amd/display/dc/link/accessories/link_dp_cts.c\", \"drivers/gpu/drm/amd/display/dc/link/hwss/link_hwss_dio.c\", \"drivers/gpu/drm/amd/display/dc/resource/dce112/dce112_resource.c\", \"drivers/gpu/drm/amd/display/dc/resource/dcn32/dcn32_resource.c\", \"drivers/gpu/drm/amd/display/dc/resource/dcn32/dcn32_resource_helpers.c\"], \"defaultStatus\": \"affected\"}], \"references\": [{\"url\": \"https://git.kernel.org/stable/c/26787fb6c2b2ee0d1a7e1574b36f4711ae40fe27\"}, {\"url\": \"https://git.kernel.org/stable/c/fdd5ecbbff751c3b9061d8ebb08e5c96119915b4\"}], \"x_generator\": {\"engine\": \"bippy-1.2.0\"}, \"descriptions\": [{\"lang\": \"en\", \"value\": \"In the Linux kernel, the following vulnerability has been resolved:\\n\\ndrm/amd/display: Check null pointers before multiple uses\\n\\n[WHAT \u0026 HOW]\\nPoniters, such as stream_enc and dc-\u003ebw_vbios, are null checked previously\\nin the same function, so Coverity warns \\\"implies that stream_enc and\\ndc-\u003ebw_vbios might be null\\\". They are used multiple times in the\\nsubsequent code and need to be checked.\\n\\nThis fixes 10 FORWARD_NULL issues reported by Coverity.\"}], \"cpeApplicability\": [{\"nodes\": [{\"negate\": false, \"cpeMatch\": [{\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.11.3\", \"versionStartIncluding\": \"4.15\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.12\", \"versionStartIncluding\": \"4.15\"}], \"operator\": \"OR\"}]}], \"providerMetadata\": {\"orgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"shortName\": \"Linux\", \"dateUpdated\": \"2025-07-11T17:21:19.261Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2024-49920\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2025-07-11T17:21:19.261Z\", \"dateReserved\": \"2024-10-21T12:17:06.034Z\", \"assignerOrgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"datePublished\": \"2024-10-21T18:01:46.437Z\", \"assignerShortName\": \"Linux\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.1"
    }
  }
}


Log in or create an account to share your comment.




Tags
Taxonomy of the tags.




Sightings

Author Source Type Date

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



Detection rules are retrieved from Rulezet.