ceph: fix memory leak in ceph_direct_read_write()

{
  "id": "fa13dfc30c6cf77c8ba0de24b4f4ac3d0515f062dae24cc6531e732729db8802",
  "url": "https://osv.dev/vulnerability/CVE-2024-56710",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "ceph: fix memory leak in ceph_direct_read_write()",
    "summary": "In the Linux kernel, the following vulnerability has been resolved: ceph: fix memory leak in ceph_direct_read_write() The bvecs array which is allocated in iter_get_bvecs_alloc() is leaked and pages remain pinned if ceph_alloc_sparse_ext_map() fails. There is no need to delay the allocation of sparse_ext map until after the bvecs array is set up, so fix this by moving sparse_ext allocation a bit earlier. Also, make a similar adjustment in __ceph_sync_read() for consistency (a leak of the same kind in __ceph_sync_read() has been addressed differently).",
    "evidence": "osv:CVE-2024-56710",
    "products": [
      {
        "name": {
          "value": "Kernel",
          "evidence": "/affected/1/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "6.6.69",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "6.12.7",
            "evidence": "/affected/1/ranges"
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        "affected_versions": []
      }
    ],
    "severity": "low",
    "structured": {
      "id": "CVE-2024-56710",
      "aliases": [
        "CVE-2024-56710"
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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:L"
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                  "fixed": "eb9041837123f31d5897e99bb761f46cb4ce5859"
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        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
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                  "introduced": "6.6.0"
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            {
              "type": "ECOSYSTEM",
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                  "fixed": "6.12.7"
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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-2024-56710.json"
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      ],
      "modified": "2026-10-28T02:30:42.910250194Z",
      "provider": "osv",
      "references": [
        "https://git.kernel.org/stable/c/44e518abbb498075ae85c7d1d1a503a6bb05ea2d",
        "https://git.kernel.org/stable/c/66e0c4f91461d17d48071695271c824620bed4ef",
        "https://git.kernel.org/stable/c/eb9041837123f31d5897e99bb761f46cb4ce5859",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/56xxx/CVE-2024-56710.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2024-56710",
        "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/2024/56xxx/CVE-2024-56710.json"
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    "related_cves": [
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        "value": "CVE-2024-56710",
        "evidence": "/id"
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    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
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  "source_id": "core-osv",
  "document_id": 510699,
  "published_at": "2024-12-29T08:48:44.411+00:00"
}