FKIE_CVE-2024-49909

Vulnerability from fkie_nvd - Published: 2024-10-21 18:15 - Updated: 2026-06-17 08:00
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: Add NULL check for function pointer in dcn32_set_output_transfer_func This commit adds a null check for the set_output_gamma function pointer in the dcn32_set_output_transfer_func function. Previously, set_output_gamma was being checked for null, but then it was being dereferenced without any null check. This could lead to a null pointer dereference if set_output_gamma is null. To fix this, we now ensure that set_output_gamma is not null before dereferencing it. We do this by adding a null check for set_output_gamma before the call to set_output_gamma.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/28574b08c70e56d34d6f6379326a860b96749051Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/496486950c3d2aebf46a3be300296ac091da7a2dPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/5298270bdabe97be5b8236e544c9e936415fe1f2Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/e087c9738ee1cdeebde346f4dfc819e5f7057e90
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/f38b09ba6a335c511eb27920bb9bb4a1b2c20084
af854a3a-2127-422b-91ae-364da2661108https://lists.debian.org/debian-lts-announce/2025/03/msg00001.html
Impacted products
Vendor Product Version
linux linux_kernel *
linux linux_kernel *
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/gpu/drm/amd/display/dc/hwss/dcn32/dcn32_hwseq.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "e087c9738ee1cdeebde346f4dfc819e5f7057e90",
              "status": "affected",
              "version": "235c67634230b0f9ad8c0185272fed36c892b1c4",
              "versionType": "git"
            },
            {
              "lessThan": "f38b09ba6a335c511eb27920bb9bb4a1b2c20084",
              "status": "affected",
              "version": "235c67634230b0f9ad8c0185272fed36c892b1c4",
              "versionType": "git"
            },
            {
              "lessThan": "496486950c3d2aebf46a3be300296ac091da7a2d",
              "status": "affected",
              "version": "235c67634230b0f9ad8c0185272fed36c892b1c4",
              "versionType": "git"
            },
            {
              "lessThan": "5298270bdabe97be5b8236e544c9e936415fe1f2",
              "status": "affected",
              "version": "235c67634230b0f9ad8c0185272fed36c892b1c4",
              "versionType": "git"
            },
            {
              "lessThan": "28574b08c70e56d34d6f6379326a860b96749051",
              "status": "affected",
              "version": "235c67634230b0f9ad8c0185272fed36c892b1c4",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/gpu/drm/amd/display/dc/hwss/dcn32/dcn32_hwseq.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.0"
            },
            {
              "lessThan": "6.0",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.120",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.64",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.10.*",
              "status": "unaffected",
              "version": "6.10.14",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.11.*",
              "status": "unaffected",
              "version": "6.11.3",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.12",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "652638C5-5F25-4DF3-AD42-DD3252A97152",
              "versionEndExcluding": "6.10.14",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "54D9C704-D679-41A7-9C40-10A6B1E7FFE9",
              "versionEndExcluding": "6.11.3",
              "versionStartIncluding": "6.11",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/amd/display: Add NULL check for function pointer in dcn32_set_output_transfer_func\n\nThis commit adds a null check for the set_output_gamma function pointer\nin the dcn32_set_output_transfer_func function. Previously,\nset_output_gamma was being checked for null, but then it was being\ndereferenced without any null check. This could lead to a null pointer\ndereference if set_output_gamma is null.\n\nTo fix this, we now ensure that set_output_gamma is not null before\ndereferencing it. We do this by adding a null check for set_output_gamma\nbefore the call to set_output_gamma."
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: drm/amd/display: Agregar comprobaci\u00f3n NULL para el puntero de funci\u00f3n en dcn32_set_output_transfer_func Esta confirmaci\u00f3n agrega una comprobaci\u00f3n NULL para el puntero de funci\u00f3n set_output_gamma en la funci\u00f3n dcn32_set_output_transfer_func. Anteriormente, se estaba comprobando que set_output_gamma no fuera nulo, pero luego se estaba desreferenciando sin ninguna comprobaci\u00f3n NULL. Esto podr\u00eda provocar una desreferencia de puntero nulo si set_output_gamma es nulo. Para solucionar esto, ahora nos aseguramos de que set_output_gamma no sea nulo antes de desreferenciarlo. Para ello, agregamos una comprobaci\u00f3n NULL para set_output_gamma antes de la llamada a set_output_gamma."
    }
  ],
  "id": "CVE-2024-49909",
  "lastModified": "2026-06-17T08:00:42.917",
  "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"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2024-49909",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2024-10-22T13:41:51.958050Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2024-10-21T18:15:13.357",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/28574b08c70e56d34d6f6379326a860b96749051"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/496486950c3d2aebf46a3be300296ac091da7a2d"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/5298270bdabe97be5b8236e544c9e936415fe1f2"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/e087c9738ee1cdeebde346f4dfc819e5f7057e90"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/f38b09ba6a335c511eb27920bb9bb4a1b2c20084"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "https://lists.debian.org/debian-lts-announce/2025/03/msg00001.html"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-476"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}


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