Vulnerability-Lookup

GHSA-6FWG-C2RW-7C32

Vulnerability from github – Published: 2025-08-16 12:30 – Updated: 2025-11-19 18:31

Details

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

io_uring/zcrx: fix pp destruction warnings

With multiple page pools and in some other cases we can have allocated niovs on page pool destruction. Remove a misplaced warning checking that all niovs are returned to zcrx on io_pp_zc_destroy(). It was reported before but apparently got lost.

Severity

5.5 (Medium)


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

Show details on source website

JSON

To clipboard

{
  "affected": [],
  "aliases": [
    "CVE-2025-38504"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-08-16T11:15:43Z",
    "severity": "MODERATE"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nio_uring/zcrx: fix pp destruction warnings\n\nWith multiple page pools and in some other cases we can have allocated\nniovs on page pool destruction. Remove a misplaced warning checking that\nall niovs are returned to zcrx on io_pp_zc_destroy(). It was reported\nbefore but apparently got lost.",
  "id": "GHSA-6fwg-c2rw-7c32",
  "modified": "2025-11-19T18:31:17Z",
  "published": "2025-08-16T12:30:32Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-38504"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/203817de269539c062724d97dfa5af3cdf77a3ec"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/ad9f1b5bed082b9c910e2a24bae0286a70846909"
    }
  ],
  "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-2025-38504 (GCVE-0-2025-38504)

Vulnerability from cvelistv5 – Published: 2025-08-16 10:54 – Updated: 2026-05-11 21:29

Title

io_uring/zcrx: fix pp destruction warnings

Summary

In the Linux kernel, the following vulnerability has been resolved: io_uring/zcrx: fix pp destruction warnings With multiple page pools and in some other cases we can have allocated niovs on page pool destruction. Remove a misplaced warning checking that all niovs are returned to zcrx on io_pp_zc_destroy(). It was reported before but apparently got lost.

Severity

No CVSS data available.

Assigner

Linux mitre root

References

2 references

URL	Tags
https://git.kernel.org/stable/c/ad9f1b5bed082b9c9…
https://git.kernel.org/stable/c/203817de269539c06…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: 34a3e60821ab9f335a58d43a88cccdbefdebdec3 , < ad9f1b5bed082b9c910e2a24bae0286a70846909 (git) Affected: 34a3e60821ab9f335a58d43a88cccdbefdebdec3 , < 203817de269539c062724d97dfa5af3cdf77a3ec (git)
Linux	Linux	Affected: 6.15 Unaffected: 0 , < 6.15 (semver) Unaffected: 6.15.7 , ≤ 6.15.* (semver) Unaffected: 6.16 , ≤ * (original_commit_for_fix)

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "io_uring/zcrx.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "ad9f1b5bed082b9c910e2a24bae0286a70846909",
              "status": "affected",
              "version": "34a3e60821ab9f335a58d43a88cccdbefdebdec3",
              "versionType": "git"
            },
            {
              "lessThan": "203817de269539c062724d97dfa5af3cdf77a3ec",
              "status": "affected",
              "version": "34a3e60821ab9f335a58d43a88cccdbefdebdec3",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "io_uring/zcrx.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.15"
            },
            {
              "lessThan": "6.15",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.15.*",
              "status": "unaffected",
              "version": "6.15.7",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.16",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.15.7",
                  "versionStartIncluding": "6.15",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.16",
                  "versionStartIncluding": "6.15",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nio_uring/zcrx: fix pp destruction warnings\n\nWith multiple page pools and in some other cases we can have allocated\nniovs on page pool destruction. Remove a misplaced warning checking that\nall niovs are returned to zcrx on io_pp_zc_destroy(). It was reported\nbefore but apparently got lost."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-05-11T21:29:18.014Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/ad9f1b5bed082b9c910e2a24bae0286a70846909"
        },
        {
          "url": "https://git.kernel.org/stable/c/203817de269539c062724d97dfa5af3cdf77a3ec"
        }
      ],
      "title": "io_uring/zcrx: fix pp destruction warnings",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2025-38504",
    "datePublished": "2025-08-16T10:54:42.086Z",
    "dateReserved": "2025-04-16T04:51:24.022Z",
    "dateUpdated": "2026-05-11T21:29:18.014Z",
    "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.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.