fkie_cve-2025-38405
Vulnerability from fkie_nvd
Published
2025-07-25 14:15
Modified
2025-11-19 18:18
Severity ?
5.5 (Medium) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
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/190f4c2c863af7cc5bb354b70e0805f06419c038Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/2e2028fcf924d1c6df017033c8d6e28b735a0508Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/431e58d56fcb5ff1f9eb630724a922e0d2a941dfPatch
Impacted products
Vendor Product Version
linux linux_kernel *
linux linux_kernel *
linux linux_kernel 6.16
linux linux_kernel 6.16
linux linux_kernel 6.16
linux linux_kernel 6.16


To clipboard 

{
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
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              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "692DB691-91FE-43AD-82FA-92BAD9C97C80",
              "versionEndExcluding": "6.12.37",
              "versionStartIncluding": "6.10.10",
              "vulnerable": true
            },
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              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "6E0BB4E0-44BC-4645-83A8-6EA232CE624C",
              "versionEndExcluding": "6.15.6",
              "versionStartIncluding": "6.13",
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              "matchCriteriaId": "415BF58A-8197-43F5-B3D7-D1D63057A26E",
              "vulnerable": true
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              "matchCriteriaId": "A0517869-312D-4429-80C2-561086E1421C",
              "vulnerable": true
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          ],
          "negate": false,
          "operator": "OR"
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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": "2025-11-19T18:18:34.070",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "LOCAL",
          "availabilityImpact": "HIGH",
          "baseScore": 5.5,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 1.8,
        "impactScore": 3.6,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ]
  },
  "published": "2025-07-25T14:15:32.077",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
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      ],
      "url": "https://git.kernel.org/stable/c/190f4c2c863af7cc5bb354b70e0805f06419c038"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
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    },
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      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
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    }
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  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-401"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}


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