Vulnerability-Lookup

GHSA-J23C-3429-Q5QM

Vulnerability from github – Published: 2025-05-20 18:30 – Updated: 2025-11-19 15:31

Details

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

iommu: Fix two issues in iommu_copy_struct_from_user()

In the review for iommu_copy_struct_to_user() helper, Matt pointed out that a NULL pointer should be rejected prior to dereferencing it: https://lore.kernel.org/all/86881827-8E2D-461C-BDA3-FA8FD14C343C@nvidia.com

And Alok pointed out a typo at the same time: https://lore.kernel.org/all/480536af-6830-43ce-a327-adbd13dc3f1d@oracle.com

Since both issues were copied from iommu_copy_struct_from_user(), fix them first in the current header.

Severity

5.5 (Medium)


                  
                    CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

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{
  "affected": [],
  "aliases": [
    "CVE-2025-37900"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-476"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-05-20T16:15:26Z",
    "severity": "MODERATE"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\niommu: Fix two issues in iommu_copy_struct_from_user()\n\nIn the review for iommu_copy_struct_to_user() helper, Matt pointed out that\na NULL pointer should be rejected prior to dereferencing it:\nhttps://lore.kernel.org/all/86881827-8E2D-461C-BDA3-FA8FD14C343C@nvidia.com\n\nAnd Alok pointed out a typo at the same time:\nhttps://lore.kernel.org/all/480536af-6830-43ce-a327-adbd13dc3f1d@oracle.com\n\nSince both issues were copied from iommu_copy_struct_from_user(), fix them\nfirst in the current header.",
  "id": "GHSA-j23c-3429-q5qm",
  "modified": "2025-11-19T15:31:28Z",
  "published": "2025-05-20T18:30:54Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-37900"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/2e303d010722787dc84d94f68d70fe10dfc1b9ea"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/30a3f2f3e4bd6335b727c83c08a982d969752bc1"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/967d6f0d9a20a1bf15ee7ed881e2d4e532e22709"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ]
}

CVE-2025-37900 (GCVE-0-2025-37900)

Vulnerability from cvelistv5 – Published: 2025-05-20 15:21 – Updated: 2026-05-11 21:17

Title

iommu: Fix two issues in iommu_copy_struct_from_user()

Summary

In the Linux kernel, the following vulnerability has been resolved: iommu: Fix two issues in iommu_copy_struct_from_user() In the review for iommu_copy_struct_to_user() helper, Matt pointed out that a NULL pointer should be rejected prior to dereferencing it: https://lore.kernel.org/all/86881827-8E2D-461C-BDA3-FA8FD14C343C@nvidia.com And Alok pointed out a typo at the same time: https://lore.kernel.org/all/480536af-6830-43ce-a327-adbd13dc3f1d@oracle.com Since both issues were copied from iommu_copy_struct_from_user(), fix them first in the current header.

Severity

No CVSS data available.

Assigner

Linux mitre root

References

3 references

URL	Tags
https://git.kernel.org/stable/c/2e303d010722787dc…
https://git.kernel.org/stable/c/967d6f0d9a20a1bf1…
https://git.kernel.org/stable/c/30a3f2f3e4bd6335b…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: e9d36c07bb787840e4813fb09a929a17d522a69f , < 2e303d010722787dc84d94f68d70fe10dfc1b9ea (git) Affected: e9d36c07bb787840e4813fb09a929a17d522a69f , < 967d6f0d9a20a1bf15ee7ed881e2d4e532e22709 (git) Affected: e9d36c07bb787840e4813fb09a929a17d522a69f , < 30a3f2f3e4bd6335b727c83c08a982d969752bc1 (git)
Linux	Linux	Affected: 6.7 Unaffected: 0 , < 6.7 (semver) Unaffected: 6.12.28 , ≤ 6.12.* (semver) Unaffected: 6.14.6 , ≤ 6.14.* (semver) Unaffected: 6.15 , ≤ * (original_commit_for_fix)

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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "include/linux/iommu.h"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
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              "status": "affected",
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              "versionType": "git"
            },
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              "status": "affected",
              "version": "e9d36c07bb787840e4813fb09a929a17d522a69f",
              "versionType": "git"
            },
            {
              "lessThan": "30a3f2f3e4bd6335b727c83c08a982d969752bc1",
              "status": "affected",
              "version": "e9d36c07bb787840e4813fb09a929a17d522a69f",
              "versionType": "git"
            }
          ]
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          "programFiles": [
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          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.7"
            },
            {
              "lessThan": "6.7",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.28",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.14.*",
              "status": "unaffected",
              "version": "6.14.6",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.15",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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                  "versionStartIncluding": "6.7",
                  "vulnerable": true
                },
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                  "versionStartIncluding": "6.7",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\niommu: Fix two issues in iommu_copy_struct_from_user()\n\nIn the review for iommu_copy_struct_to_user() helper, Matt pointed out that\na NULL pointer should be rejected prior to dereferencing it:\nhttps://lore.kernel.org/all/86881827-8E2D-461C-BDA3-FA8FD14C343C@nvidia.com\n\nAnd Alok pointed out a typo at the same time:\nhttps://lore.kernel.org/all/480536af-6830-43ce-a327-adbd13dc3f1d@oracle.com\n\nSince both issues were copied from iommu_copy_struct_from_user(), fix them\nfirst in the current header."
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      "providerMetadata": {
        "dateUpdated": "2026-05-11T21:17:18.120Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
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        {
          "url": "https://git.kernel.org/stable/c/30a3f2f3e4bd6335b727c83c08a982d969752bc1"
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    "datePublished": "2025-05-20T15:21:35.433Z",
    "dateReserved": "2025-04-16T04:51:23.965Z",
    "dateUpdated": "2026-05-11T21:17:18.120Z",
    "state": "PUBLISHED"
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  "dataType": "CVE_RECORD",
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}

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.
Browse all ATT&CK techniques and the vulnerabilities related to each.

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