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

{
  "id": "b227b8a23495f83c878ab5198174149ce76b65c0bb6addb079a8d23f27948e06",
  "url": "https://osv.dev/vulnerability/CVE-2026-72011",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "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.",
    "evidence": "osv:CVE-2026-72011",
    "products": [
      {
        "name": {
          "value": "Kernel",
          "evidence": "/affected/1/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "6.18.40",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "7.1.5",
            "evidence": "/affected/1/ranges"
          }
        ],
        "affected_versions": []
      }
    ],
    "severity": "unknown",
    "structured": {
      "id": "CVE-2026-72011",
      "aliases": [
        "CVE-2026-72011"
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0d30871739ab433e114b0058f08b6b1c7b816f7e"
                },
                {
                  "fixed": "c6b4d454865a81ceea1422243aaaedc363b6f713"
                },
                {
                  "fixed": "83fe36f81200b7a85f8efe0a68a4e58be84d5f64"
                },
                {
                  "fixed": "b7577fe4c47a31ca7c99714c53244a44af03cdfe"
                }
              ]
            }
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-72011.json"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "6.14.0"
                },
                {
                  "fixed": "6.18.40"
                }
              ]
            },
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "6.19.0"
                },
                {
                  "fixed": "7.1.5"
                }
              ]
            }
          ],
          "package": {
            "name": "Kernel",
            "ecosystem": "Linux"
          },
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-72011.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:23.158042318Z",
      "provider": "osv",
      "references": [
        "https://git.kernel.org/stable/c/83fe36f81200b7a85f8efe0a68a4e58be84d5f64",
        "https://git.kernel.org/stable/c/b7577fe4c47a31ca7c99714c53244a44af03cdfe",
        "https://git.kernel.org/stable/c/c6b4d454865a81ceea1422243aaaedc363b6f713",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/72xxx/CVE-2026-72011.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-72011",
        "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
      ],
      "provider_metadata": {
        "cna_assigner": "Linux",
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/72xxx/CVE-2026-72011.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2026-72011",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": null
  },
  "source_id": "core-osv",
  "document_id": 489702,
  "published_at": "2026-08-15T05:51:40.489+00:00"
}