Vulnerability-Lookup

GHSA-J4PX-38FV-H9G9

Vulnerability from github – Published: 2026-08-15 06:32 – Updated: 2026-08-23 15:33

Details

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.

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{
  "affected": [],
  "aliases": [
    "CVE-2026-72305"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-08-15T06:22:03Z",
    "severity": null
  },
  "details": "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.",
  "id": "GHSA-j4px-38fv-h9g9",
  "modified": "2026-08-23T15:33:01Z",
  "published": "2026-08-15T06:32:19Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-72305"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/00335df9da2011e095f846d645cc2e9fd2907659"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/3ae878f262bd1445c8c31511856a99962a05fe16"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/41e27a6aca608c9e04f091c29c420d03fafe0313"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/5e88c1bc3a41d9a260dd42bae8ad18fd4f35bbe1"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/690fb82c4122f8c2656fa4f842275132771b68b9"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/9c1523803445ee0348f62b77793266dd981596e0"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/fde25641cbddd0c084e3320d08f755e7e6acfae5"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}

CVE-2026-72305 (GCVE-0-2026-72305)

Vulnerability from cvelistv5 – Published: 2026-08-15 05:55 – Updated: 2026-08-23 12:47

Title

VDUSE: avoid leaking information to userspace

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.

Severity

No CVSS data available.

Assigner

Linux mitre root

References

7 references

URL	Tags
https://git.kernel.org/stable/c/41e27a6aca608c9e0…
https://git.kernel.org/stable/c/3ae878f262bd1445c…
https://git.kernel.org/stable/c/fde25641cbddd0c08…
https://git.kernel.org/stable/c/5e88c1bc3a41d9a26…
https://git.kernel.org/stable/c/690fb82c4122f8c26…
https://git.kernel.org/stable/c/00335df9da2011e09…
https://git.kernel.org/stable/c/9c1523803445ee034…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: 8c773d53fb7b64267b0f55c1d3517cb8c5e29b3c , < 41e27a6aca608c9e04f091c29c420d03fafe0313 (git) Affected: 8c773d53fb7b64267b0f55c1d3517cb8c5e29b3c , < 3ae878f262bd1445c8c31511856a99962a05fe16 (git) Affected: 8c773d53fb7b64267b0f55c1d3517cb8c5e29b3c , < fde25641cbddd0c084e3320d08f755e7e6acfae5 (git) Affected: 8c773d53fb7b64267b0f55c1d3517cb8c5e29b3c , < 5e88c1bc3a41d9a260dd42bae8ad18fd4f35bbe1 (git) Affected: 8c773d53fb7b64267b0f55c1d3517cb8c5e29b3c , < 690fb82c4122f8c2656fa4f842275132771b68b9 (git) Affected: 8c773d53fb7b64267b0f55c1d3517cb8c5e29b3c , < 00335df9da2011e095f846d645cc2e9fd2907659 (git) Affected: 8c773d53fb7b64267b0f55c1d3517cb8c5e29b3c , < 9c1523803445ee0348f62b77793266dd981596e0 (git)
Linux	Linux	Affected: 5.15 Unaffected: 0 , < 5.15 (semver) Unaffected: 5.15.217 , ≤ 5.15.* (semver) Unaffected: 6.1.184 , ≤ 6.1.* (semver) Unaffected: 6.6.148 , ≤ 6.6.* (semver) Unaffected: 6.12.101 , ≤ 6.12.* (semver) Unaffected: 6.18.42 , ≤ 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/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",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "41e27a6aca608c9e04f091c29c420d03fafe0313",
              "status": "affected",
              "version": "8c773d53fb7b64267b0f55c1d3517cb8c5e29b3c",
              "versionType": "git"
            },
            {
              "lessThan": "3ae878f262bd1445c8c31511856a99962a05fe16",
              "status": "affected",
              "version": "8c773d53fb7b64267b0f55c1d3517cb8c5e29b3c",
              "versionType": "git"
            },
            {
              "lessThan": "fde25641cbddd0c084e3320d08f755e7e6acfae5",
              "status": "affected",
              "version": "8c773d53fb7b64267b0f55c1d3517cb8c5e29b3c",
              "versionType": "git"
            },
            {
              "lessThan": "5e88c1bc3a41d9a260dd42bae8ad18fd4f35bbe1",
              "status": "affected",
              "version": "8c773d53fb7b64267b0f55c1d3517cb8c5e29b3c",
              "versionType": "git"
            },
            {
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              "status": "affected",
              "version": "8c773d53fb7b64267b0f55c1d3517cb8c5e29b3c",
              "versionType": "git"
            },
            {
              "lessThan": "00335df9da2011e095f846d645cc2e9fd2907659",
              "status": "affected",
              "version": "8c773d53fb7b64267b0f55c1d3517cb8c5e29b3c",
              "versionType": "git"
            },
            {
              "lessThan": "9c1523803445ee0348f62b77793266dd981596e0",
              "status": "affected",
              "version": "8c773d53fb7b64267b0f55c1d3517cb8c5e29b3c",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "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",
          "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
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.1.184",
                  "versionStartIncluding": "5.15",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.12.101",
                  "versionStartIncluding": "5.15",
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                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.18.42",
                  "versionStartIncluding": "5.15",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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                },
                {
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                  "versionEndExcluding": "7.2",
                  "versionStartIncluding": "5.15",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
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        }
      ],
      "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": [
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          "url": "https://git.kernel.org/stable/c/41e27a6aca608c9e04f091c29c420d03fafe0313"
        },
        {
          "url": "https://git.kernel.org/stable/c/3ae878f262bd1445c8c31511856a99962a05fe16"
        },
        {
          "url": "https://git.kernel.org/stable/c/fde25641cbddd0c084e3320d08f755e7e6acfae5"
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        {
          "url": "https://git.kernel.org/stable/c/00335df9da2011e095f846d645cc2e9fd2907659"
        },
        {
          "url": "https://git.kernel.org/stable/c/9c1523803445ee0348f62b77793266dd981596e0"
        }
      ],
      "title": "VDUSE: avoid leaking information to userspace",
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  "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"
}

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-J4PX-38FV-H9G9

CVE-2026-72305 (GCVE-0-2026-72305)

Tags

Sightings

Nomenclature