fkie_cve-2024-49914
Vulnerability from fkie_nvd
Published
2024-10-21 18:15
Modified
2024-12-09 13:10
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 pipe_ctx->plane_state in dcn20_program_pipe This commit addresses a null pointer dereference issue in the `dcn20_program_pipe` function. The issue could occur when `pipe_ctx->plane_state` is null. The fix adds a check to ensure `pipe_ctx->plane_state` is not null before accessing. This prevents a null pointer dereference. Reported by smatch: drivers/gpu/drm/amd/amdgpu/../display/dc/hwss/dcn20/dcn20_hwseq.c:1925 dcn20_program_pipe() error: we previously assumed 'pipe_ctx->plane_state' could be null (see line 1877)
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/65a6fee22d5cfa645cb05489892dc9cd3d142fc2Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/68f75e6f08aad66069a629db8d7840919156c761
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/8e4ed3cf1642df0c4456443d865cff61a9598aa8Patch
Impacted products
Vendor Product Version
linux linux_kernel *


To clipboard 

{
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "6D5FF9C2-A011-4A64-B614-F9244ED2EA0D",
              "versionEndExcluding": "6.11.3",
              "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 pipe_ctx-\u003eplane_state in dcn20_program_pipe\n\nThis commit addresses a null pointer dereference issue in the\n`dcn20_program_pipe` function. The issue could occur when\n`pipe_ctx-\u003eplane_state` is null.\n\nThe fix adds a check to ensure `pipe_ctx-\u003eplane_state` is not null\nbefore accessing. This prevents a null pointer dereference.\n\nReported by smatch:\ndrivers/gpu/drm/amd/amdgpu/../display/dc/hwss/dcn20/dcn20_hwseq.c:1925 dcn20_program_pipe() error: we previously assumed \u0027pipe_ctx-\u003eplane_state\u0027 could be null (see line 1877)"
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: drm/amd/display: Agregar comprobaci\u00f3n NULL para pipe_ctx-\u0026gt;plane_state en dcn20_program_pipe Esta confirmaci\u00f3n soluciona un problema de desreferencia de puntero nulo en la funci\u00f3n `dcn20_program_pipe`. El problema podr\u00eda ocurrir cuando `pipe_ctx-\u0026gt;plane_state` es nulo. La correcci\u00f3n agrega una comprobaci\u00f3n para garantizar que `pipe_ctx-\u0026gt;plane_state` no sea nulo antes de acceder. Esto evita una desreferencia de puntero nulo. Reportado por smatch: drivers/gpu/drm/amd/amdgpu/../display/dc/hwss/dcn20/dcn20_hwseq.c:1925 Error de dcn20_program_pipe(): anteriormente asumimos que \u0027pipe_ctx-\u0026gt;plane_state\u0027 podr\u00eda ser nulo (consulte la l\u00ednea 1877)"
    }
  ],
  "id": "CVE-2024-49914",
  "lastModified": "2024-12-09T13:10:05.087",
  "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": "2024-10-21T18:15:13.723",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/65a6fee22d5cfa645cb05489892dc9cd3d142fc2"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/68f75e6f08aad66069a629db8d7840919156c761"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/8e4ed3cf1642df0c4456443d865cff61a9598aa8"
    }
  ],
  "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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