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CVE-2024-49915

Estado: ModificadaMedia (5.5)—

In the Linux kernel, the following vulnerability has been resolved:

drm/amd/display: Add NULL check for clk_mgr in dcn32_init_hw

This commit addresses a potential null pointer dereference issue in the `dcn32_init_hw` function. The issue could occur when `dc->clk_mgr` is null.

The fix adds a check to ensure `dc->clk_mgr` is not null before accessing its functions. This prevents a potential null pointer dereference.

Reported by smatch: drivers/gpu/drm/amd/amdgpu/../display/dc/hwss/dcn32/dcn32_hwseq.c:961 dcn32_init_hw() error: we previously assumed 'dc->clk_mgr' could be null (see line 782)

CVSS

Probabilidad de explotación (EPSS)

EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).

Tecnologías afectadas (1)

Linux — Linux Kernel

CWE

Referencias

JSON original (NVD)

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  "id": "CVE-2024-49915",
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          "options": [
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          "version": "2.0.3",
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  "published": "2024-10-21T18:15:13.787",
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          "value": "CWE-476"
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  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/amd/display: Add NULL check for clk_mgr in dcn32_init_hw\n\nThis commit addresses a potential null pointer dereference issue in the\n`dcn32_init_hw` function. The issue could occur when `dc->clk_mgr` is\nnull.\n\nThe fix adds a check to ensure `dc->clk_mgr` is not null before\naccessing its functions. This prevents a potential null pointer\ndereference.\n\nReported by smatch:\ndrivers/gpu/drm/amd/amdgpu/../display/dc/hwss/dcn32/dcn32_hwseq.c:961 dcn32_init_hw() error: we previously assumed 'dc->clk_mgr' could be null (see line 782)"
    },
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      "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: drm/amd/display: Agregar comprobación NULL para clk_mgr en dcn32_init_hw Esta confirmación soluciona un posible problema de desreferencia de puntero nulo en la función `dcn32_init_hw`. El problema podría ocurrir cuando `dc->clk_mgr` es nulo. La corrección agrega una comprobación para garantizar que `dc->clk_mgr` no sea nulo antes de acceder a sus funciones. Esto evita una posible desreferencia de puntero nulo. Reportado por smatch: drivers/gpu/drm/amd/amdgpu/../display/dc/hwss/dcn32/dcn32_hwseq.c:961 Error de dcn32_init_hw(): anteriormente asumimos que 'dc->clk_mgr' podría ser nulo (consulte la línea 782)"
    }
  ],
  "lastModified": "2026-06-17T08:00:43.643",
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