Vulnerability-Lookup

GHSA-CMM5-39XX-C83C

Vulnerability from github – Published: 2026-08-15 06:32 – Updated: 2026-08-15 06:32

Details

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

dm-ioctl: fix a possible overflow in list_version_get_info

sizeof(tt->version) is 12 bytes, but the code writes 16 bytes into the output buffer - info->vers->version[0], info->vers->version[1], info->vers->version[2] and info->vers->next. This can cause buffer overflow.

Fix this buffer overflow by replacing "sizeof(tt->version)" with "sizeof(struct dm_target_versions)".

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{
  "affected": [],
  "aliases": [
    "CVE-2026-72106"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-08-15T06:21:24Z",
    "severity": null
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\ndm-ioctl: fix a possible overflow in list_version_get_info\n\nsizeof(tt-\u003eversion) is 12 bytes, but the code writes 16 bytes into the\noutput buffer - info-\u003evers-\u003eversion[0], info-\u003evers-\u003eversion[1],\ninfo-\u003evers-\u003eversion[2] and info-\u003evers-\u003enext. This can cause buffer\noverflow.\n\nFix this buffer overflow by replacing \"sizeof(tt-\u003eversion)\" with\n\"sizeof(struct dm_target_versions)\".",
  "id": "GHSA-cmm5-39xx-c83c",
  "modified": "2026-08-15T06:32:12Z",
  "published": "2026-08-15T06:32:12Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-72106"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/29536a9ff146d9bbd618959857ed2e691cda1d21"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/76c6f845dc0c614304a6e6ee619b552f97cf24b3"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/d61c12573ed9768690fdcb2bc38846a1bcb01358"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/df50c24c6447c18886ed126d3d81cc7e155ea8b6"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/e0f5842c4e2a7dbefb52a2dc6711789bc6963e55"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}

CVE-2026-72106 (GCVE-0-2026-72106)

Vulnerability from cvelistv5 – Published: 2026-08-15 05:52 – Updated: 2026-08-18 06:56

Title

dm-ioctl: fix a possible overflow in list_version_get_info

Summary

In the Linux kernel, the following vulnerability has been resolved: dm-ioctl: fix a possible overflow in list_version_get_info sizeof(tt->version) is 12 bytes, but the code writes 16 bytes into the output buffer - info->vers->version[0], info->vers->version[1], info->vers->version[2] and info->vers->next. This can cause buffer overflow. Fix this buffer overflow by replacing "sizeof(tt->version)" with "sizeof(struct dm_target_versions)".

Severity

No CVSS data available.

Assigner

Linux mitre root

References

5 references

URL	Tags
https://git.kernel.org/stable/c/29536a9ff146d9bbd…
https://git.kernel.org/stable/c/e0f5842c4e2a7dbef…
https://git.kernel.org/stable/c/d61c12573ed976869…
https://git.kernel.org/stable/c/df50c24c6447c1888…
https://git.kernel.org/stable/c/76c6f845dc0c61430…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < 29536a9ff146d9bbd618959857ed2e691cda1d21 (git) Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < e0f5842c4e2a7dbefb52a2dc6711789bc6963e55 (git) Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < d61c12573ed9768690fdcb2bc38846a1bcb01358 (git) Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < df50c24c6447c18886ed126d3d81cc7e155ea8b6 (git) Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < 76c6f845dc0c614304a6e6ee619b552f97cf24b3 (git)
Linux	Linux	Affected: 2.6.12 Unaffected: 0 , < 2.6.12 (semver) Unaffected: 6.6.145 , ≤ 6.6.* (semver) Unaffected: 6.12.97 , ≤ 6.12.* (semver) Unaffected: 6.18.40 , ≤ 6.18.* (semver) Unaffected: 7.1.5 , ≤ 7.1.* (semver) Unaffected: 7.2 , ≤ * (original_commit_for_fix)

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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/md/dm-ioctl.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "29536a9ff146d9bbd618959857ed2e691cda1d21",
              "status": "affected",
              "version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2",
              "versionType": "git"
            },
            {
              "lessThan": "e0f5842c4e2a7dbefb52a2dc6711789bc6963e55",
              "status": "affected",
              "version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2",
              "versionType": "git"
            },
            {
              "lessThan": "d61c12573ed9768690fdcb2bc38846a1bcb01358",
              "status": "affected",
              "version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2",
              "versionType": "git"
            },
            {
              "lessThan": "df50c24c6447c18886ed126d3d81cc7e155ea8b6",
              "status": "affected",
              "version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2",
              "versionType": "git"
            },
            {
              "lessThan": "76c6f845dc0c614304a6e6ee619b552f97cf24b3",
              "status": "affected",
              "version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/md/dm-ioctl.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "2.6.12"
            },
            {
              "lessThan": "2.6.12",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.145",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.97",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.40",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.1.*",
              "status": "unaffected",
              "version": "7.1.5",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.2",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.6.145",
                  "versionStartIncluding": "2.6.12",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.12.97",
                  "versionStartIncluding": "2.6.12",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.18.40",
                  "versionStartIncluding": "2.6.12",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.1.5",
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                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.2",
                  "versionStartIncluding": "2.6.12",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndm-ioctl: fix a possible overflow in list_version_get_info\n\nsizeof(tt-\u003eversion) is 12 bytes, but the code writes 16 bytes into the\noutput buffer - info-\u003evers-\u003eversion[0], info-\u003evers-\u003eversion[1],\ninfo-\u003evers-\u003eversion[2] and info-\u003evers-\u003enext. This can cause buffer\noverflow.\n\nFix this buffer overflow by replacing \"sizeof(tt-\u003eversion)\" with\n\"sizeof(struct dm_target_versions)\"."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-08-18T06:56:11.658Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/29536a9ff146d9bbd618959857ed2e691cda1d21"
        },
        {
          "url": "https://git.kernel.org/stable/c/e0f5842c4e2a7dbefb52a2dc6711789bc6963e55"
        },
        {
          "url": "https://git.kernel.org/stable/c/d61c12573ed9768690fdcb2bc38846a1bcb01358"
        },
        {
          "url": "https://git.kernel.org/stable/c/df50c24c6447c18886ed126d3d81cc7e155ea8b6"
        },
        {
          "url": "https://git.kernel.org/stable/c/76c6f845dc0c614304a6e6ee619b552f97cf24b3"
        }
      ],
      "title": "dm-ioctl: fix a possible overflow in list_version_get_info",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2026-72106",
    "datePublished": "2026-08-15T05:52:48.845Z",
    "dateReserved": "2026-08-09T03:40:39.906Z",
    "dateUpdated": "2026-08-18T06:56:11.658Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

Sightings

Author	Source	Type	Date	Other

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.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.

Action not permitted

GHSA-CMM5-39XX-C83C

CVE-2026-72106 (GCVE-0-2026-72106)

Tags

Sightings

Nomenclature