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

Vulnerability from cvelistv5 – Published: 2026-08-15 05:52 – Updated: 2026-08-18 06:56
VLAI
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.
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < 29536a9ff146d9bbd618959857ed2e691cda1d21 (git)
Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < e0f5842c4e2a7dbefb52a2dc6711789bc6963e55 (git)
Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < d61c12573ed9768690fdcb2bc38846a1bcb01358 (git)
Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < df50c24c6447c18886ed126d3d81cc7e155ea8b6 (git)
Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < 76c6f845dc0c614304a6e6ee619b552f97cf24b3 (git)
guessed Create a notification for this product.
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)
guessed Create a notification for this product.
Show details on NVD website

{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/md/dm-ioctl.c"
          ],
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          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
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              "version": "2.6.12"
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              "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",
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                },
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              "negate": false,
              "operator": "OR"
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      ],
      "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",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2026-72106",
      "date": "2026-08-24",
      "epss": "0.00216",
      "percentile": "0.1188"
    },
    "nvd": "{\"cve\":{\"id\":\"CVE-2026-72106\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2026-08-15T06:21:24.803\",\"lastModified\":\"2026-08-18T07:16:52.840\",\"vulnStatus\":\"Received\",\"cveTags\":[],\"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)\\\".\"}],\"affected\":[{\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"affectedData\":[{\"vendor\":\"Linux\",\"product\":\"Linux\",\"defaultStatus\":\"unaffected\",\"programFiles\":[\"drivers/md/dm-ioctl.c\"],\"repo\":\"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\"versions\":[{\"version\":\"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2\",\"lessThan\":\"29536a9ff146d9bbd618959857ed2e691cda1d21\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2\",\"lessThan\":\"e0f5842c4e2a7dbefb52a2dc6711789bc6963e55\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2\",\"lessThan\":\"d61c12573ed9768690fdcb2bc38846a1bcb01358\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2\",\"lessThan\":\"df50c24c6447c18886ed126d3d81cc7e155ea8b6\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2\",\"lessThan\":\"76c6f845dc0c614304a6e6ee619b552f97cf24b3\",\"versionType\":\"git\",\"status\":\"affected\"}]},{\"vendor\":\"Linux\",\"product\":\"Linux\",\"defaultStatus\":\"affected\",\"programFiles\":[\"drivers/md/dm-ioctl.c\"],\"repo\":\"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\"versions\":[{\"version\":\"2.6.12\",\"status\":\"affected\"},{\"version\":\"0\",\"lessThan\":\"2.6.12\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.6.145\",\"lessThanOrEqual\":\"6.6.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.12.97\",\"lessThanOrEqual\":\"6.12.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.18.40\",\"lessThanOrEqual\":\"6.18.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"7.1.5\",\"lessThanOrEqual\":\"7.1.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"7.2\",\"lessThanOrEqual\":\"*\",\"versionType\":\"original_commit_for_fix\",\"status\":\"unaffected\"}]}]}],\"metrics\":{},\"references\":[{\"url\":\"https://git.kernel.org/stable/c/29536a9ff146d9bbd618959857ed2e691cda1d21\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/76c6f845dc0c614304a6e6ee619b552f97cf24b3\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/d61c12573ed9768690fdcb2bc38846a1bcb01358\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/df50c24c6447c18886ed126d3d81cc7e155ea8b6\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/e0f5842c4e2a7dbefb52a2dc6711789bc6963e55\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}]}}",
    "redhat_vex": {
      "aggregate_severity": "Moderate",
      "current_release_date": "2026-08-17T22:10:53+00:00",
      "cve": "CVE-2026-72106",
      "id": "CVE-2026-72106",
      "initial_release_date": "2026-08-15T00:00:00+00:00",
      "product_status:known_affected": "274",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: dm-ioctl: fix a possible overflow in list_version_get_info",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-72106.json",
      "version": "3"
    }
  }
}



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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

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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.
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