ghsa-5g8h-g27f-mh64
Vulnerability from github
Published
2025-07-25 15:30
Modified
2025-07-25 15:30
Details

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.

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{
  "affected": [],
  "aliases": [
    "CVE-2025-38405"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-07-25T14:15:32Z",
    "severity": null
  },
  "details": "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.",
  "id": "GHSA-5g8h-g27f-mh64",
  "modified": "2025-07-25T15:30:53Z",
  "published": "2025-07-25T15:30:53Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-38405"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/190f4c2c863af7cc5bb354b70e0805f06419c038"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/2e2028fcf924d1c6df017033c8d6e28b735a0508"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/431e58d56fcb5ff1f9eb630724a922e0d2a941df"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}


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