CVE-2023-53044

Estado: AnalizadaMedia (5.5)—
In the Linux kernel, the following vulnerability has been resolved:
dm stats: check for and propagate alloc_percpu failure
Check alloc_precpu()'s return value and return an error from dm_stats_init() if it fails. Update alloc_dev() to fail if dm_stats_init() does.
Otherwise, a NULL pointer dereference will occur in dm_stats_cleanup() even if dm-stats isn't being actively used.
CVSS

Versión: 3.1
Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Puntuación base: 5.5
Probabilidad de explotación (EPSS)

Probabilidad de explotación en los próximos 30 días: 0.20%
Percentil entre todas las CVEs puntuadas: 9
Fecha de la puntuación: 6/10/2026
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

CWE-476
Referencias

JSON original (NVD)

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          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
          "integrityImpact": "NONE",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "LOW",
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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\ndm stats: check for and propagate alloc_percpu failure\n\nCheck alloc_precpu()'s return value and return an error from\ndm_stats_init() if it fails. Update alloc_dev() to fail if\ndm_stats_init() does.\n\nOtherwise, a NULL pointer dereference will occur in dm_stats_cleanup()\neven if dm-stats isn't being actively used."
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: dm stats: comprobar y propagar el fallo de alloc_percpu. Comprueba el valor de retorno de alloc_precpu() y devuelve un error de dm_stats_init() si falla. Actualice alloc_dev() para que falle si dm_stats_init() falla. De lo contrario, se producirá una desreferencia de puntero nulo en dm_stats_cleanup(), incluso si dm-stats no se está utilizando activamente."
    }
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