cve-2024-49921
Vulnerability from cvelistv5
Published
2024-10-21 18:01
Modified
2024-12-19 09:29
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: drm/amd/display: Check null pointers before used [WHAT & HOW] Poniters, such as dc->clk_mgr, are null checked previously in the same function, so Coverity warns "implies that "dc->clk_mgr" might be null". As a result, these pointers need to be checked when used again. This fixes 10 FORWARD_NULL issues reported by Coverity.
Impacted products
Vendor Product Version
Linux Linux Version: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2
Version: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2
Create a notification for this product.
   Linux Linux Create a notification for this product.
Show details on NVD website


{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2024-49921",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2024-10-22T13:40:21.671812Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2024-10-22T13:48:44.609Z",
          "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/clk_mgr/dce110/dce110_clk_mgr.c",
            "drivers/gpu/drm/amd/display/dc/hubp/dcn10/dcn10_hubp.c",
            "drivers/gpu/drm/amd/display/dc/hubp/dcn20/dcn20_hubp.c",
            "drivers/gpu/drm/amd/display/dc/hwss/dce110/dce110_hwseq.c",
            "drivers/gpu/drm/amd/display/dc/hwss/dcn10/dcn10_hwseq.c",
            "drivers/gpu/drm/amd/display/dc/hwss/dcn31/dcn31_hwseq.c",
            "drivers/gpu/drm/amd/display/dc/hwss/dcn35/dcn35_hwseq.c",
            "drivers/gpu/drm/amd/display/dc/link/protocols/link_dp_capability.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "5b35bf1a82eb29841b67ff5643ba83762250fc24",
              "status": "affected",
              "version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2",
              "versionType": "git"
            },
            {
              "lessThan": "be1fb44389ca3038ad2430dac4234669bc177ee3",
              "status": "affected",
              "version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/gpu/drm/amd/display/dc/clk_mgr/dce110/dce110_clk_mgr.c",
            "drivers/gpu/drm/amd/display/dc/hubp/dcn10/dcn10_hubp.c",
            "drivers/gpu/drm/amd/display/dc/hubp/dcn20/dcn20_hubp.c",
            "drivers/gpu/drm/amd/display/dc/hwss/dce110/dce110_hwseq.c",
            "drivers/gpu/drm/amd/display/dc/hwss/dcn10/dcn10_hwseq.c",
            "drivers/gpu/drm/amd/display/dc/hwss/dcn31/dcn31_hwseq.c",
            "drivers/gpu/drm/amd/display/dc/hwss/dcn35/dcn35_hwseq.c",
            "drivers/gpu/drm/amd/display/dc/link/protocols/link_dp_capability.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThanOrEqual": "6.11.*",
              "status": "unaffected",
              "version": "6.11.3",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.12",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/amd/display: Check null pointers before used\n\n[WHAT \u0026 HOW]\nPoniters, such as dc-\u003eclk_mgr, are null checked previously in the same\nfunction, so Coverity warns \"implies that \"dc-\u003eclk_mgr\" might be null\".\nAs a result, these pointers need to be checked when used again.\n\nThis fixes 10 FORWARD_NULL issues reported by Coverity."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2024-12-19T09:29:05.228Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/5b35bf1a82eb29841b67ff5643ba83762250fc24"
        },
        {
          "url": "https://git.kernel.org/stable/c/be1fb44389ca3038ad2430dac4234669bc177ee3"
        }
      ],
      "title": "drm/amd/display: Check null pointers before used",
      "x_generator": {
        "engine": "bippy-5f407fcff5a0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2024-49921",
    "datePublished": "2024-10-21T18:01:47.112Z",
    "dateReserved": "2024-10-21T12:17:06.035Z",
    "dateUpdated": "2024-12-19T09:29:05.228Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1",
  "vulnerability-lookup:meta": {
    "nvd": "{\"cve\":{\"id\":\"CVE-2024-49921\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2024-10-21T18:15:14.260\",\"lastModified\":\"2024-10-25T15:01:21.077\",\"vulnStatus\":\"Analyzed\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\ndrm/amd/display: Check null pointers before used\\n\\n[WHAT \u0026 HOW]\\nPoniters, such as dc-\u003eclk_mgr, are null checked previously in the same\\nfunction, so Coverity warns \\\"implies that \\\"dc-\u003eclk_mgr\\\" might be null\\\".\\nAs a result, these pointers need to be checked when used again.\\n\\nThis fixes 10 FORWARD_NULL issues reported by Coverity.\"},{\"lang\":\"es\",\"value\":\"En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: drm/amd/display: comprobar punteros nulos antes de usarlos [QU\u00c9 Y C\u00d3MO] Los punteros, como dc-\u0026gt;clk_mgr, se comprueban antes en la misma funci\u00f3n, por lo que Coverity advierte que \\\"implica que \\\"dc-\u0026gt;clk_mgr\\\" podr\u00eda ser nulo\\\". Como resultado, estos punteros deben comprobarse cuando se utilicen nuevamente. Esto soluciona 10 problemas de FORWARD_NULL informados por Coverity.\"}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H\",\"baseScore\":5.5,\"baseSeverity\":\"MEDIUM\",\"attackVector\":\"LOCAL\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":1.8,\"impactScore\":3.6}]},\"weaknesses\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-476\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionEndExcluding\":\"6.11.3\",\"matchCriteriaId\":\"6D5FF9C2-A011-4A64-B614-F9244ED2EA0D\"}]}]}],\"references\":[{\"url\":\"https://git.kernel.org/stable/c/5b35bf1a82eb29841b67ff5643ba83762250fc24\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/be1fb44389ca3038ad2430dac4234669bc177ee3\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]}]}}",
    "vulnrichment": {
      "containers": "{\"adp\": [{\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2024-49921\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"none\"}, {\"Automatable\": \"no\"}, {\"Technical Impact\": \"partial\"}], \"version\": \"2.0.3\", \"timestamp\": \"2024-10-22T13:40:21.671812Z\"}}}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2024-10-22T13:40:24.932Z\"}}], \"cna\": {\"title\": \"drm/amd/display: Check null pointers before used\", \"affected\": [{\"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\", \"vendor\": \"Linux\", \"product\": \"Linux\", \"versions\": [{\"status\": \"affected\", \"version\": \"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2\", \"lessThan\": \"5b35bf1a82eb29841b67ff5643ba83762250fc24\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2\", \"lessThan\": \"be1fb44389ca3038ad2430dac4234669bc177ee3\", \"versionType\": \"git\"}], \"programFiles\": [\"drivers/gpu/drm/amd/display/dc/clk_mgr/dce110/dce110_clk_mgr.c\", \"drivers/gpu/drm/amd/display/dc/hubp/dcn10/dcn10_hubp.c\", \"drivers/gpu/drm/amd/display/dc/hubp/dcn20/dcn20_hubp.c\", \"drivers/gpu/drm/amd/display/dc/hwss/dce110/dce110_hwseq.c\", \"drivers/gpu/drm/amd/display/dc/hwss/dcn10/dcn10_hwseq.c\", \"drivers/gpu/drm/amd/display/dc/hwss/dcn31/dcn31_hwseq.c\", \"drivers/gpu/drm/amd/display/dc/hwss/dcn35/dcn35_hwseq.c\", \"drivers/gpu/drm/amd/display/dc/link/protocols/link_dp_capability.c\"], \"defaultStatus\": \"unaffected\"}, {\"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\", \"vendor\": \"Linux\", \"product\": \"Linux\", \"versions\": [{\"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/clk_mgr/dce110/dce110_clk_mgr.c\", \"drivers/gpu/drm/amd/display/dc/hubp/dcn10/dcn10_hubp.c\", \"drivers/gpu/drm/amd/display/dc/hubp/dcn20/dcn20_hubp.c\", \"drivers/gpu/drm/amd/display/dc/hwss/dce110/dce110_hwseq.c\", \"drivers/gpu/drm/amd/display/dc/hwss/dcn10/dcn10_hwseq.c\", \"drivers/gpu/drm/amd/display/dc/hwss/dcn31/dcn31_hwseq.c\", \"drivers/gpu/drm/amd/display/dc/hwss/dcn35/dcn35_hwseq.c\", \"drivers/gpu/drm/amd/display/dc/link/protocols/link_dp_capability.c\"], \"defaultStatus\": \"affected\"}], \"references\": [{\"url\": \"https://git.kernel.org/stable/c/5b35bf1a82eb29841b67ff5643ba83762250fc24\"}, {\"url\": \"https://git.kernel.org/stable/c/be1fb44389ca3038ad2430dac4234669bc177ee3\"}], \"x_generator\": {\"engine\": \"bippy-5f407fcff5a0\"}, \"descriptions\": [{\"lang\": \"en\", \"value\": \"In the Linux kernel, the following vulnerability has been resolved:\\n\\ndrm/amd/display: Check null pointers before used\\n\\n[WHAT \u0026 HOW]\\nPoniters, such as dc-\u003eclk_mgr, are null checked previously in the same\\nfunction, so Coverity warns \\\"implies that \\\"dc-\u003eclk_mgr\\\" might be null\\\".\\nAs a result, these pointers need to be checked when used again.\\n\\nThis fixes 10 FORWARD_NULL issues reported by Coverity.\"}], \"providerMetadata\": {\"orgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"shortName\": \"Linux\", \"dateUpdated\": \"2024-12-19T09:29:05.228Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2024-49921\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2024-12-19T09:29:05.228Z\", \"dateReserved\": \"2024-10-21T12:17:06.035Z\", \"assignerOrgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"datePublished\": \"2024-10-21T18:01:47.112Z\", \"assignerShortName\": \"Linux\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.1"
    }
  }
}


Log in or create an account to share your comment.




Tags
Taxonomy of the tags.


Loading…

Loading…

Loading…

Sightings

Author Source Type Date

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
  • Confirmed: The vulnerability is confirmed from an analyst perspective.
  • Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
  • Patched: This vulnerability was successfully patched by the user reporting the sighting.
  • Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
  • Not confirmed: The user expresses doubt about the veracity of the vulnerability.
  • Not patched: This vulnerability was not successfully patched by the user reporting the sighting.