CVE-2026-72305 (GCVE-0-2026-72305)
Vulnerability from cvelistv5
Published
2026-08-15 05:55
Modified
2026-08-23 12:47
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: VDUSE: avoid leaking information to userspace The bounceing is not necessarily page aligned, so current VDUSE can leak kernel information through mapping bounce pages to userspace. Allocate bounce pages with __GFP_ZERO to avoid leaking information to userspace.
References
Impacted products
Vendor Product Version
Linux Linux Version: 8c773d53fb7b64267b0f55c1d3517cb8c5e29b3c
Version: 8c773d53fb7b64267b0f55c1d3517cb8c5e29b3c
Version: 8c773d53fb7b64267b0f55c1d3517cb8c5e29b3c
Version: 8c773d53fb7b64267b0f55c1d3517cb8c5e29b3c
Version: 8c773d53fb7b64267b0f55c1d3517cb8c5e29b3c
Version: 8c773d53fb7b64267b0f55c1d3517cb8c5e29b3c
Version: 8c773d53fb7b64267b0f55c1d3517cb8c5e29b3c
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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/vdpa/vdpa_user/iova_domain.c",
            "drivers/vdpa/vdpa_user/vduse_dev.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
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          "versions": [
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          ]
        },
        {
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          "product": "Linux",
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          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "5.15"
            },
            {
              "lessThan": "5.15",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.217",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.184",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.148",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.101",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.42",
              "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": "5.15.217",
                  "versionStartIncluding": "5.15",
                  "vulnerable": true
                },
                {
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                  "versionStartIncluding": "5.15",
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                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nVDUSE: avoid leaking information to userspace\n\nThe bounceing is not necessarily page aligned, so current VDUSE can\nleak kernel information through mapping bounce pages to\nuserspace. Allocate bounce pages with __GFP_ZERO to avoid leaking\ninformation to userspace."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-08-23T12:47:13.473Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/41e27a6aca608c9e04f091c29c420d03fafe0313"
        },
        {
          "url": "https://git.kernel.org/stable/c/3ae878f262bd1445c8c31511856a99962a05fe16"
        },
        {
          "url": "https://git.kernel.org/stable/c/fde25641cbddd0c084e3320d08f755e7e6acfae5"
        },
        {
          "url": "https://git.kernel.org/stable/c/5e88c1bc3a41d9a260dd42bae8ad18fd4f35bbe1"
        },
        {
          "url": "https://git.kernel.org/stable/c/690fb82c4122f8c2656fa4f842275132771b68b9"
        },
        {
          "url": "https://git.kernel.org/stable/c/00335df9da2011e095f846d645cc2e9fd2907659"
        },
        {
          "url": "https://git.kernel.org/stable/c/9c1523803445ee0348f62b77793266dd981596e0"
        }
      ],
      "title": "VDUSE: avoid leaking information to userspace",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2026-72305",
    "datePublished": "2026-08-15T05:55:22.914Z",
    "dateReserved": "2026-08-09T03:40:39.918Z",
    "dateUpdated": "2026-08-23T12:47:13.473Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}


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