fkie_cve-2025-38405
Vulnerability from fkie_nvd
Published
2025-07-25 14:15
Modified
2025-07-25 15:29
Severity ?
Summary
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.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/190f4c2c863af7cc5bb354b70e0805f06419c038
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/2e2028fcf924d1c6df017033c8d6e28b735a0508
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/431e58d56fcb5ff1f9eb630724a922e0d2a941df
Impacted products
Vendor Product Version


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{
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "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-\u003ebi_integrity.\n\nSince commit bf4c89fc8797 (\"block: don\u0027t 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."
    },
    {
      "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, m\u00e1s precisamente, bio-\u0026gt;bi_integrity. Desde el commit bf4c89fc8797 (\"bloqueo: no llamar a bio_uninit desde bio_endio\"), cada usuario de bio_init debe usar tambi\u00e9n bio_uninit. De lo contrario, la integridad de la bio no se libera. nvmet usa bio_init para la bios en l\u00ednea. Desinicie la bios en l\u00ednea para completar la desasignaci\u00f3n de la integridad en la bio."
    }
  ],
  "id": "CVE-2025-38405",
  "lastModified": "2025-07-25T15:29:19.837",
  "metrics": {},
  "published": "2025-07-25T14:15:32.077",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/190f4c2c863af7cc5bb354b70e0805f06419c038"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/2e2028fcf924d1c6df017033c8d6e28b735a0508"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/431e58d56fcb5ff1f9eb630724a922e0d2a941df"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Awaiting Analysis"
}


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