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CVE-2022-49498

Estado: ModificadaMedia (5.5)—

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

ALSA: pcm: Check for null pointer of pointer substream before dereferencing it

Pointer substream is being dereferenced on the assignment of pointer card before substream is being null checked with the macro PCM_RUNTIME_CHECK. Although PCM_RUNTIME_CHECK calls BUG_ON, it still is useful to perform the the pointer check before card is assigned.

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)

Mostrar
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          "options": [
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          "version": "2.0.3",
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          "value": "CWE-476"
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      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nALSA: pcm: Check for null pointer of pointer substream before dereferencing it\n\nPointer substream is being dereferenced on the assignment of pointer card\nbefore substream is being null checked with the macro PCM_RUNTIME_CHECK.\nAlthough PCM_RUNTIME_CHECK calls BUG_ON, it still is useful to perform the\nthe pointer check before card is assigned."
    },
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      "lang": "es",
      "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: ALSA: pcm: Verificar si el puntero de la subsecuencia de puntero es nulo antes de desreferenciarlo La subsecuencia de puntero se desreferencia en la asignación de la tarjeta de puntero antes de que la subsecuencia sea verificada como nula con la macro PCM_RUNTIME_CHECK. Aunque PCM_RUNTIME_CHECK llama a BUG_ON, sigue siendo útil realizar la verificación del puntero antes de que se asigne la tarjeta."
    }
  ],
  "lastModified": "2026-06-17T05:18:14.820",
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