arm64/pageattr: Propagate return value from __change_memory_common

{
  "id": "d02c08a67094626c3f3fbe63482f6b2bbb93861d31f87a729ac105d154941108",
  "url": "https://osv.dev/vulnerability/CVE-2025-68737",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "arm64/pageattr: Propagate return value from __change_memory_common",
    "summary": "In the Linux kernel, the following vulnerability has been resolved: arm64/pageattr: Propagate return value from __change_memory_common The rodata=on security measure requires that any code path which does vmalloc -> set_memory_ro/set_memory_rox must protect the linear map alias too. Therefore, if such a call fails, we must abort set_memory_* and caller must take appropriate action; currently we are suppressing the error, and there is a real chance of such an error arising post commit a166563e7ec3 (\"arm64: mm: support large block mapping when rodata=full\"). Therefore, propagate any error to the caller.",
    "evidence": "osv:CVE-2025-68737",
    "products": [
      {
        "name": {
          "value": "Kernel",
          "evidence": "/affected/1/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "6.18.2",
            "evidence": "/affected/1/ranges"
          }
        ],
        "affected_versions": []
      }
    ],
    "severity": "unknown",
    "structured": {
      "id": "CVE-2025-68737",
      "aliases": [
        "CVE-2025-68737"
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
              "type": "GIT",
              "events": [
                {
                  "introduced": "a166563e7ec375b38a0fd3a58f7b77e50a6bc6a8"
                },
                {
                  "fixed": "3e2fc1e57a5361633a4bf4222640c6bfe41ff8ea"
                },
                {
                  "fixed": "e5efd56fa157d2e7d789949d1d64eccbac18a897"
                }
              ]
            }
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-68737.json"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "6.18.0"
                },
                {
                  "fixed": "6.18.2"
                }
              ]
            }
          ],
          "package": {
            "name": "Kernel",
            "ecosystem": "Linux"
          },
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-68737.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:37.774428856Z",
      "provider": "osv",
      "references": [
        "https://git.kernel.org/stable/c/3e2fc1e57a5361633a4bf4222640c6bfe41ff8ea",
        "https://git.kernel.org/stable/c/e5efd56fa157d2e7d789949d1d64eccbac18a897",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/68xxx/CVE-2025-68737.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2025-68737",
        "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/2025/68xxx/CVE-2025-68737.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2025-68737",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": null
  },
  "source_id": "core-osv",
  "document_id": 504996,
  "published_at": "2025-12-24T12:09:35.773+00:00"
}