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CVE-2025-38405

Estado: ModificadaMedia (5.5)—

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

nvmet: fix memory leak of bio integrity

If nvmet receives commands with metadata there is a continuous memory leak of kmalloc-128 slab or more precisely bio->bi_integrity.

Since commit bf4c89fc8797 ("block: don't call bio_uninit from bio_endio") each user of bio_init has to use bio_uninit as well. Otherwise the bio integrity is not getting free. Nvmet uses bio_init for inline bios.

Uninit the inline bio to complete deallocation of integrity in bio.

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)

CWE

Referencias

JSON original (NVD)

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      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnvmet: fix memory leak of bio integrity\n\nIf nvmet receives commands with metadata there is a continuous memory\nleak of kmalloc-128 slab or more precisely bio->bi_integrity.\n\nSince commit bf4c89fc8797 (\"block: don't call bio_uninit from bio_endio\")\neach user of bio_init has to use bio_uninit as well. Otherwise the bio\nintegrity is not getting free. Nvmet uses bio_init for inline bios.\n\nUninit the inline bio to complete deallocation of integrity in bio."
    },
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      "lang": "es",
      "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: nvmet: se corrige una fuga de memoria de la integridad de la bio. Si nvmet recibe comandos con metadatos, se produce una fuga de memoria continua de la slab kmalloc-128 o, más precisamente, bio->bi_integrity. Desde el commit bf4c89fc8797 (\"bloqueo: no llamar a bio_uninit desde bio_endio\"), cada usuario de bio_init debe usar también bio_uninit. De lo contrario, la integridad de la bio no se libera. nvmet usa bio_init para la bios en línea. Desinicie la bios en línea para completar la desasignación de la integridad en la bio."
    }
  ],
  "lastModified": "2026-07-30T06:23:12.530",
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