Vulnerability-Lookup

GHSA-284M-JPV7-RC59

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

Details

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

accel/amdxdna: Fix leak when pinning ubuf pages

When pin_user_pages_fast() returns fewer pages than requested, the pages that were successfully pinned are not released, leading to a leak.

Fix this by unpinning any partially pinned pages before returning failure.

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{
  "affected": [],
  "aliases": [
    "CVE-2026-74423"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-08-15T06:22:44Z",
    "severity": null
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\naccel/amdxdna: Fix leak when pinning ubuf pages\n\nWhen pin_user_pages_fast() returns fewer pages than requested, the pages\nthat were successfully pinned are not released, leading to a leak.\n\nFix this by unpinning any partially pinned pages before returning failure.",
  "id": "GHSA-284m-jpv7-rc59",
  "modified": "2026-08-15T06:32:33Z",
  "published": "2026-08-15T06:32:33Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-74423"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/5b24e0903c58cdfd8ebfecb6ac5c5bacfd06e4e7"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/68dc52f308a17c3103a349f722dd5dea32c50a88"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/d946347edc4f0a7b846325323d77e936a4c90d0f"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}

CVE-2026-74423 (GCVE-0-2026-74423)

Vulnerability from cvelistv5 – Published: 2026-08-15 05:59 – Updated: 2026-08-17 05:19

Title

accel/amdxdna: Fix leak when pinning ubuf pages

Summary

In the Linux kernel, the following vulnerability has been resolved: accel/amdxdna: Fix leak when pinning ubuf pages When pin_user_pages_fast() returns fewer pages than requested, the pages that were successfully pinned are not released, leading to a leak. Fix this by unpinning any partially pinned pages before returning failure.

Severity

No CVSS data available.

Assigner

Linux mitre root

References

3 references

URL	Tags
https://git.kernel.org/stable/c/68dc52f308a17c310…
https://git.kernel.org/stable/c/5b24e0903c58cdfd8…
https://git.kernel.org/stable/c/d946347edc4f0a7b8…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: bd72d4acda1069579b35123e3cc0b21ec1193a21 , < 68dc52f308a17c3103a349f722dd5dea32c50a88 (git) Affected: bd72d4acda1069579b35123e3cc0b21ec1193a21 , < 5b24e0903c58cdfd8ebfecb6ac5c5bacfd06e4e7 (git) Affected: bd72d4acda1069579b35123e3cc0b21ec1193a21 , < d946347edc4f0a7b846325323d77e936a4c90d0f (git)
Linux	Linux	Affected: 6.18 Unaffected: 0 , < 6.18 (semver) Unaffected: 6.18.40 , ≤ 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/accel/amdxdna/amdxdna_ubuf.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "68dc52f308a17c3103a349f722dd5dea32c50a88",
              "status": "affected",
              "version": "bd72d4acda1069579b35123e3cc0b21ec1193a21",
              "versionType": "git"
            },
            {
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              "status": "affected",
              "version": "bd72d4acda1069579b35123e3cc0b21ec1193a21",
              "versionType": "git"
            },
            {
              "lessThan": "d946347edc4f0a7b846325323d77e936a4c90d0f",
              "status": "affected",
              "version": "bd72d4acda1069579b35123e3cc0b21ec1193a21",
              "versionType": "git"
            }
          ]
        },
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          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/accel/amdxdna/amdxdna_ubuf.c"
          ],
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          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.18"
            },
            {
              "lessThan": "6.18",
              "status": "unaffected",
              "version": "0",
              "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": [
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                  "versionEndExcluding": "6.18.40",
                  "versionStartIncluding": "6.18",
                  "vulnerable": true
                },
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                  "vulnerable": true
                },
                {
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                  "versionEndExcluding": "7.2",
                  "versionStartIncluding": "6.18",
                  "vulnerable": true
                }
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              "operator": "OR"
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        }
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      "descriptions": [
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          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\naccel/amdxdna: Fix leak when pinning ubuf pages\n\nWhen pin_user_pages_fast() returns fewer pages than requested, the pages\nthat were successfully pinned are not released, leading to a leak.\n\nFix this by unpinning any partially pinned pages before returning failure."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-08-17T05:19:08.522Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
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          "url": "https://git.kernel.org/stable/c/d946347edc4f0a7b846325323d77e936a4c90d0f"
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    "assignerShortName": "Linux",
    "cveId": "CVE-2026-74423",
    "datePublished": "2026-08-15T05:59:26.568Z",
    "dateReserved": "2026-08-15T05:44:03.894Z",
    "dateUpdated": "2026-08-17T05:19:08.522Z",
    "state": "PUBLISHED"
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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.

Action not permitted

GHSA-284M-JPV7-RC59

CVE-2026-74423 (GCVE-0-2026-74423)

Tags

Sightings

Nomenclature