CVE-2026-72101 (GCVE-0-2026-72101)
Vulnerability from cvelistv5
Published
2026-08-15 05:52
Modified
2026-08-17 05:08
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: dm-integrity: fix leaking uninitialized kernel memory If hash size is less than device's tuple size, dm-integrity is supposed to zero the remaining space. There was a bug in the code that zeroing didn't work. This commit fixes it.
References
Impacted products
Vendor Product Version
Linux Linux Version: fb0987682c629c1d2c476f35f6fde405a5e304a4
Version: fb0987682c629c1d2c476f35f6fde405a5e304a4
Version: fb0987682c629c1d2c476f35f6fde405a5e304a4
Version: fb0987682c629c1d2c476f35f6fde405a5e304a4
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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/md/dm-integrity.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "50af3e51dc709384701dbc721b4bd865285c5f2c",
              "status": "affected",
              "version": "fb0987682c629c1d2c476f35f6fde405a5e304a4",
              "versionType": "git"
            },
            {
              "lessThan": "0c4e9bb1d4101030f55c869f18bd3ece39a77bbb",
              "status": "affected",
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              "versionType": "git"
            },
            {
              "lessThan": "8f0af8493009a61b4313e0a8c6e03fbc36fd43f9",
              "status": "affected",
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              "versionType": "git"
            },
            {
              "lessThan": "7bb03b2b01b814a9fc14afbfc2cbb2cca5b34750",
              "status": "affected",
              "version": "fb0987682c629c1d2c476f35f6fde405a5e304a4",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/md/dm-integrity.c"
          ],
          "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": "6.12.101",
              "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": "6.12.101",
                  "versionStartIncluding": "6.11",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.18.40",
                  "versionStartIncluding": "6.11",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.1.5",
                  "versionStartIncluding": "6.11",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.2",
                  "versionStartIncluding": "6.11",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndm-integrity: fix leaking uninitialized kernel memory\n\nIf hash size is less than device\u0027s tuple size, dm-integrity is supposed\nto zero the remaining space. There was a bug in the code that zeroing\ndidn\u0027t work. This commit fixes it."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-08-17T05:08:13.573Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/50af3e51dc709384701dbc721b4bd865285c5f2c"
        },
        {
          "url": "https://git.kernel.org/stable/c/0c4e9bb1d4101030f55c869f18bd3ece39a77bbb"
        },
        {
          "url": "https://git.kernel.org/stable/c/8f0af8493009a61b4313e0a8c6e03fbc36fd43f9"
        },
        {
          "url": "https://git.kernel.org/stable/c/7bb03b2b01b814a9fc14afbfc2cbb2cca5b34750"
        }
      ],
      "title": "dm-integrity: fix leaking uninitialized kernel memory",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2026-72101",
    "datePublished": "2026-08-15T05:52:45.548Z",
    "dateReserved": "2026-08-09T03:40:39.905Z",
    "dateUpdated": "2026-08-17T05:08:13.573Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}


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