firmware: qcom: scm: Fix missing read barrier in qcom_scm_get_tzmem_pool()

{
  "id": "4cc11056d782379b3b4a8c963c38532122980825b87a950adb8f85a840da0151",
  "url": "https://osv.dev/vulnerability/CVE-2024-58084",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "firmware: qcom: scm: Fix missing read barrier in qcom_scm_get_tzmem_pool()",
    "summary": "In the Linux kernel, the following vulnerability has been resolved: firmware: qcom: scm: Fix missing read barrier in qcom_scm_get_tzmem_pool() Commit 2e4955167ec5 (\"firmware: qcom: scm: Fix __scm and waitq completion variable initialization\") introduced a write barrier in probe function to store global '__scm' variable. We all known barriers are paired (see memory-barriers.txt: \"Note that write barriers should normally be paired with read or address-dependency barriers\"), therefore accessing it from concurrent contexts requires read barrier. Previous commit added such barrier in qcom_scm_is_available(), so let's use that directly. Lack of this read barrier can result in fetching stale '__scm' variable value, NULL, and dereferencing it. Note that barrier in qcom_scm_is_available() satisfies here the control dependency.",
    "evidence": "osv:CVE-2024-58084",
    "products": [
      {
        "name": {
          "value": "Kernel",
          "evidence": "/affected/1/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "6.12.14",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "6.13.3",
            "evidence": "/affected/1/ranges"
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        "affected_versions": []
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    "severity": "medium",
    "structured": {
      "id": "CVE-2024-58084",
      "aliases": [
        "CVE-2024-58084"
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      "metrics": [
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          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H"
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          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "6.11.0"
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                  "fixed": "6.12.14"
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            {
              "type": "ECOSYSTEM",
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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-2024-58084.json"
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      ],
      "modified": "2026-10-28T02:30:25.606078692Z",
      "provider": "osv",
      "references": [
        "https://git.kernel.org/stable/c/b628510397b5cafa1f5d3e848a28affd1c635302",
        "https://git.kernel.org/stable/c/e03db7c1255ebabba5e1a447754faeb138de15a2",
        "https://git.kernel.org/stable/c/fee921e3c641f64185abee83f9a6e65f0b380682",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/58xxx/CVE-2024-58084.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2024-58084",
        "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/2024/58xxx/CVE-2024-58084.json"
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    "related_cves": [
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        "value": "CVE-2024-58084",
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    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
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  "source_id": "core-osv",
  "document_id": 492262,
  "published_at": "2025-03-06T16:22:31.998+00:00"
}