md: Don't ignore suspended array in md_check_recovery()

{
  "id": "cc9a22967461734c1c7d91cb3b29b0ada841ee212d254685b46094247420a71d",
  "url": "https://osv.dev/vulnerability/CVE-2024-26758",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "md: Don't ignore suspended array in md_check_recovery()",
    "summary": "In the Linux kernel, the following vulnerability has been resolved: md: Don't ignore suspended array in md_check_recovery() mddev_suspend() never stop sync_thread, hence it doesn't make sense to ignore suspended array in md_check_recovery(), which might cause sync_thread can't be unregistered. After commit f52f5c71f3d4 (\"md: fix stopping sync thread\"), following hang can be triggered by test shell/integrity-caching.sh: 1) suspend the array: raid_postsuspend mddev_suspend 2) stop the array: raid_dtr md_stop __md_stop_writes stop_sync_thread set_bit(MD_RECOVERY_INTR, &mddev->recovery); md_wakeup_thread_directly(mddev->sync_thread); wait_event(..., !test_bit(MD_RECOVERY_RUNNING, &mddev->recovery)) 3) sync thread done: md_do_sync set_bit(MD_RECOVERY_DONE, &mddev->recovery); md_wakeup_thread(mddev->thread); 4) daemon thread can't unregister sync thread: md_check_recovery if (mddev->suspended) return; -> return directly md_read_sync_thread clear_bit(MD_RECOVERY_RUNNING, &mddev->recovery); -> MD_RECOVERY_RUNNING can't be cleared, hence step 2 hang; This problem is not just related to dm-raid, fix it by ignoring suspended array in md_check_recovery(). And follow up patches will improve dm-raid better to frozen sync thread during suspend.",
    "evidence": "osv:CVE-2024-26758",
    "products": [
      {
        "name": {
          "value": "Kernel",
          "evidence": "/affected/1/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "6.7.7",
            "evidence": "/affected/1/ranges"
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        "affected_versions": []
      }
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    "severity": "medium",
    "structured": {
      "id": "CVE-2024-26758",
      "aliases": [
        "CVE-2024-26758"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
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                {
                  "fixed": "1baae052cccd08daf9a9d64c3f959d8cdb689757"
                }
              ]
            }
          ],
          "database_specific": {
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        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "3.0.0"
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                {
                  "fixed": "6.7.7"
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          "package": {
            "name": "Kernel",
            "ecosystem": "Linux"
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          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2024-26758.json"
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      ],
      "modified": "2026-10-28T02:30:53.165351368Z",
      "provider": "osv",
      "references": [
        "https://git.kernel.org/stable/c/1baae052cccd08daf9a9d64c3f959d8cdb689757",
        "https://git.kernel.org/stable/c/a55f0d6179a19c6b982e2dc344d58c98647a3be0",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/26xxx/CVE-2024-26758.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2024-26758",
        "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/2024/26xxx/CVE-2024-26758.json"
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    "related_cves": [
      {
        "value": "CVE-2024-26758",
        "evidence": "/id"
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    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
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  "source_id": "core-osv",
  "document_id": 521991,
  "published_at": "2024-04-03T17:00:42.448+00:00"
}