Vulnerability-Lookup

GHSA-GM6X-FG6P-956V

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:

s390/diag: Add missing array_index_nospec() call to memtop_get_page_count()

'level' is user space controlled and used to read from an array. Add the missing array_index_nospec() call to prevent speculative execution.

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{
  "affected": [],
  "aliases": [
    "CVE-2026-72011"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-08-15T06:20:59Z",
    "severity": null
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\ns390/diag: Add missing array_index_nospec() call to memtop_get_page_count()\n\n\u0027level\u0027 is user space controlled and used to read from an array. Add the\nmissing array_index_nospec() call to prevent speculative execution.",
  "id": "GHSA-gm6x-fg6p-956v",
  "modified": "2026-08-15T06:32:09Z",
  "published": "2026-08-15T06:32:09Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-72011"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/83fe36f81200b7a85f8efe0a68a4e58be84d5f64"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/b7577fe4c47a31ca7c99714c53244a44af03cdfe"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/c6b4d454865a81ceea1422243aaaedc363b6f713"
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  "schema_version": "1.4.0",
  "severity": []
}

CVE-2026-72011 (GCVE-0-2026-72011)

Vulnerability from cvelistv5 – Published: 2026-08-15 05:51 – Updated: 2026-08-17 05:06

Title

s390/diag: Add missing array_index_nospec() call to memtop_get_page_count()

Summary

In the Linux kernel, the following vulnerability has been resolved: s390/diag: Add missing array_index_nospec() call to memtop_get_page_count() 'level' is user space controlled and used to read from an array. Add the missing array_index_nospec() call to prevent speculative execution.

Severity

No CVSS data available.

Assigner

Linux mitre root

References

3 references

URL	Tags
https://git.kernel.org/stable/c/c6b4d454865a81cee…
https://git.kernel.org/stable/c/83fe36f81200b7a85…
https://git.kernel.org/stable/c/b7577fe4c47a31ca7…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: 0d30871739ab433e114b0058f08b6b1c7b816f7e , < c6b4d454865a81ceea1422243aaaedc363b6f713 (git) Affected: 0d30871739ab433e114b0058f08b6b1c7b816f7e , < 83fe36f81200b7a85f8efe0a68a4e58be84d5f64 (git) Affected: 0d30871739ab433e114b0058f08b6b1c7b816f7e , < b7577fe4c47a31ca7c99714c53244a44af03cdfe (git)
Linux	Linux	Affected: 6.14 Unaffected: 0 , < 6.14 (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": [
            "arch/s390/kernel/diag/diag310.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
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              "lessThan": "c6b4d454865a81ceea1422243aaaedc363b6f713",
              "status": "affected",
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              "status": "affected",
              "version": "0d30871739ab433e114b0058f08b6b1c7b816f7e",
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          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.14"
            },
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            },
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              "version": "7.1.5",
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            },
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              "status": "unaffected",
              "version": "7.2",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
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              "cpeMatch": [
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                  "versionStartIncluding": "6.14",
                  "vulnerable": true
                },
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                  "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\ns390/diag: Add missing array_index_nospec() call to memtop_get_page_count()\n\n\u0027level\u0027 is user space controlled and used to read from an array. Add the\nmissing array_index_nospec() call to prevent speculative execution."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-08-17T05:06:33.180Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
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        },
        {
          "url": "https://git.kernel.org/stable/c/b7577fe4c47a31ca7c99714c53244a44af03cdfe"
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      ],
      "title": "s390/diag: Add missing array_index_nospec() call to memtop_get_page_count()",
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    "assignerShortName": "Linux",
    "cveId": "CVE-2026-72011",
    "datePublished": "2026-08-15T05:51:40.489Z",
    "dateReserved": "2026-08-09T03:40:39.899Z",
    "dateUpdated": "2026-08-17T05:06:33.180Z",
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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-GM6X-FG6P-956V

CVE-2026-72011 (GCVE-0-2026-72011)

Tags

Sightings

Nomenclature