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CVE-2026-89491 ocfs2: cluster: don't sleep while holding o2hb_live_lock in o2hb_region_pin()

🗓️ 11 Sep 2026 19:43:43Reported by LinuxType 
cvelist
 cvelist
🔗 www.cve.org👁 33 Views

Linux kernel ocfs2 o2hb_region_pin() sleeps under spinlock causing BUG, deadlock, leaked counters.

Related
Affected
Refs
[
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "unaffected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "fs/ocfs2/cluster/heartbeat.c"
    ],
    "versions": [
      {
        "version": "58a3158a5d17ddf4894db9e8ccaf92093ff8e42e",
        "lessThan": "4d64f8da82fb9e8dbd5aa9b64c9bb6ac0decea03",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "58a3158a5d17ddf4894db9e8ccaf92093ff8e42e",
        "lessThan": "3b790774280a610f8bdbd5d4260a07345bcf8e04",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "58a3158a5d17ddf4894db9e8ccaf92093ff8e42e",
        "lessThan": "0cbc2f20a6ea7b4a59efa9171b7c694cdd196507",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "58a3158a5d17ddf4894db9e8ccaf92093ff8e42e",
        "lessThan": "c9be4de77f97f383b750698e1517fd296041f4bb",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "58a3158a5d17ddf4894db9e8ccaf92093ff8e42e",
        "lessThan": "49002acc520c61002ad195894ac391c94317d3ba",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "58a3158a5d17ddf4894db9e8ccaf92093ff8e42e",
        "lessThan": "ce035f208d68b812d83e5482980f2b1c88a9cd94",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "58a3158a5d17ddf4894db9e8ccaf92093ff8e42e",
        "lessThan": "470212a5eefabcc16b8e2f7fe2844b8737fe571c",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "58a3158a5d17ddf4894db9e8ccaf92093ff8e42e",
        "lessThan": "af09df89db9a68a1d76df0f75667998135bc8d65",
        "status": "affected",
        "versionType": "git"
      }
    ]
  },
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "affected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "fs/ocfs2/cluster/heartbeat.c"
    ],
    "versions": [
      {
        "version": "2.6.38",
        "status": "affected"
      },
      {
        "version": "0",
        "lessThan": "2.6.38",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "5.10.270",
        "lessThanOrEqual": "5.10.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "5.15.221",
        "lessThanOrEqual": "5.15.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.1.188",
        "lessThanOrEqual": "6.1.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.6.157",
        "lessThanOrEqual": "6.6.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.12.109",
        "lessThanOrEqual": "6.12.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.18.50",
        "lessThanOrEqual": "6.18.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "7.2.4",
        "lessThanOrEqual": "7.2.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "7.3-rc1",
        "lessThanOrEqual": "*",
        "status": "unaffected",
        "versionType": "original_commit_for_fix"
      }
    ]
  }
]

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