github - ghsa-5g8h-g27f-mh64

GHSA-5G8H-G27F-MH64

Vulnerability from github – Published: 2025-07-25 15:30 – Updated: 2025-11-19 18:31

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.

Severity ?

5.5 (Medium)


                  
                    CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

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{
  "affected": [],
  "aliases": [
    "CVE-2025-38405"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-401"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-07-25T14:15:32Z",
    "severity": "MODERATE"
  },
  "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": "2025-11-19T18:31:16Z",
  "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": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ]
}

CVE-2025-38405 (GCVE-0-2025-38405)

Vulnerability from cvelistv5 – Published: 2025-07-25 13:12 – Updated: 2025-07-28 04:21

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.

Severity ?

No CVSS data available.

Assigner

Linux

References

URL

Tags

	https://git.kernel.org/stable/c/431e58d56fcb5ff1f…
	https://git.kernel.org/stable/c/2e2028fcf924d1c6d…
	https://git.kernel.org/stable/c/190f4c2c863af7cc5…

Impacted products

Vendor

Product

Version

Linux

Affected: bf4c89fc8797f5c0964a0c3d561fbe7e8483b62f , < 431e58d56fcb5ff1f9eb630724a922e0d2a941df (git)
Affected: bf4c89fc8797f5c0964a0c3d561fbe7e8483b62f , < 2e2028fcf924d1c6df017033c8d6e28b735a0508 (git)
Affected: bf4c89fc8797f5c0964a0c3d561fbe7e8483b62f , < 190f4c2c863af7cc5bb354b70e0805f06419c038 (git)
Affected: 64149da0fddbbfe43e11c0348d8c8b4171dae3a2 (git)

Linux

Affected: 6.11
Unaffected: 0 , < 6.11 (semver)
Unaffected: 6.12.37 , ≤ 6.12.* (semver)
Unaffected: 6.15.6 , ≤ 6.15.* (semver)
Unaffected: 6.16 , ≤ * (original_commit_for_fix)

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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/nvme/target/nvmet.h"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "431e58d56fcb5ff1f9eb630724a922e0d2a941df",
              "status": "affected",
              "version": "bf4c89fc8797f5c0964a0c3d561fbe7e8483b62f",
              "versionType": "git"
            },
            {
              "lessThan": "2e2028fcf924d1c6df017033c8d6e28b735a0508",
              "status": "affected",
              "version": "bf4c89fc8797f5c0964a0c3d561fbe7e8483b62f",
              "versionType": "git"
            },
            {
              "lessThan": "190f4c2c863af7cc5bb354b70e0805f06419c038",
              "status": "affected",
              "version": "bf4c89fc8797f5c0964a0c3d561fbe7e8483b62f",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "64149da0fddbbfe43e11c0348d8c8b4171dae3a2",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/nvme/target/nvmet.h"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.11"
            },
            {
              "lessThan": "6.11",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.37",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.15.*",
              "status": "unaffected",
              "version": "6.15.6",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.16",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.12.37",
                  "versionStartIncluding": "6.11",
                  "vulnerable": true
                },
                {
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                  "versionStartIncluding": "6.11",
                  "vulnerable": true
                },
                {
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                  "versionStartIncluding": "6.11",
                  "vulnerable": true
                },
                {
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                  "versionStartIncluding": "6.10.10",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "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."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-07-28T04:21:15.215Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
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          "url": "https://git.kernel.org/stable/c/431e58d56fcb5ff1f9eb630724a922e0d2a941df"
        },
        {
          "url": "https://git.kernel.org/stable/c/2e2028fcf924d1c6df017033c8d6e28b735a0508"
        },
        {
          "url": "https://git.kernel.org/stable/c/190f4c2c863af7cc5bb354b70e0805f06419c038"
        }
      ],
      "title": "nvmet: fix memory leak of bio integrity",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
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  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2025-38405",
    "datePublished": "2025-07-25T13:12:07.926Z",
    "dateReserved": "2025-04-16T04:51:24.012Z",
    "dateUpdated": "2025-07-28T04:21:15.215Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

Sightings

Author	Source	Type	Date

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

Action not permitted

GHSA-5G8H-G27F-MH64

CVE-2025-38405 (GCVE-0-2025-38405)

Tags

Sightings

Nomenclature