md/md-llbitmap: raise barrier before state machine transition

{
  "id": "970d57a6716df325a14c69d1f0bc79a3802be9d75ebf19f3881ae8ec9454b9ef",
  "url": "https://osv.dev/vulnerability/CVE-2026-46095",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "md/md-llbitmap: raise barrier before state machine transition",
    "summary": "In the Linux kernel, the following vulnerability has been resolved: md/md-llbitmap: raise barrier before state machine transition Move the barrier raise operation before calling llbitmap_state_machine() in both llbitmap_start_write() and llbitmap_start_discard(). This ensures the barrier is in place before any state transitions occur, preventing potential race conditions where the state machine could complete before the barrier is properly raised.",
    "evidence": "osv:CVE-2026-46095",
    "products": [
      {
        "name": {
          "value": "Kernel",
          "evidence": "/affected/1/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "6.18.27",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "7.0.4",
            "evidence": "/affected/1/ranges"
          }
        ],
        "affected_versions": []
      }
    ],
    "severity": "unknown",
    "structured": {
      "id": "CVE-2026-46095",
      "aliases": [
        "CVE-2026-46095"
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
              "type": "GIT",
              "events": [
                {
                  "introduced": "5ab829f1971dc99f2aac10846c378e67fc875abc"
                },
                {
                  "fixed": "9142f00a9287ca38152717e3e88a033a27774e7f"
                },
                {
                  "fixed": "9701d51dd378380ba05293fa391e8ba01065ae8d"
                },
                {
                  "fixed": "ef4ca3d4bf09716cff9ba00eb0351deadc8417ab"
                }
              ]
            }
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-46095.json"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "6.18.0"
                },
                {
                  "fixed": "6.18.27"
                }
              ]
            },
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "6.19.0"
                },
                {
                  "fixed": "7.0.4"
                }
              ]
            }
          ],
          "package": {
            "name": "Kernel",
            "ecosystem": "Linux"
          },
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-46095.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:24.459470993Z",
      "provider": "osv",
      "references": [
        "https://git.kernel.org/stable/c/9142f00a9287ca38152717e3e88a033a27774e7f",
        "https://git.kernel.org/stable/c/9701d51dd378380ba05293fa391e8ba01065ae8d",
        "https://git.kernel.org/stable/c/ef4ca3d4bf09716cff9ba00eb0351deadc8417ab",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/46xxx/CVE-2026-46095.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-46095",
        "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/2026/46xxx/CVE-2026-46095.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2026-46095",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": null
  },
  "source_id": "core-osv",
  "document_id": 490806,
  "published_at": "2026-05-27T12:58:48.179+00:00"
}