{
  "schema_version": "1.6.1",
  "id": "RPI-CVE-2024-47668",
  "modified": "2026-10-07T17:22:01Z",
  "upstream": [
    "CVE-2024-47668"
  ],
  "published": "2024-10-09T14:14:13Z",
  "summary": "lib/generic-radix-tree.c: Fix rare race in __genradix_ptr_alloc()",
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nlib/generic-radix-tree.c: Fix rare race in __genradix_ptr_alloc()\n\nIf we need to increase the tree depth, allocate a new node, and then\nrace with another thread that increased the tree depth before us, we'll\nstill have a preallocated node that might be used later.\n\nIf we then use that node for a new non-root node, it'll still have a\npointer to the old root instead of being zeroed - fix this by zeroing it\nin the cmpxchg failure path.",
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  "references": [
    {
      "type": "ADVISORY",
      "url": "https://www.cve.org/CVERecord?id=CVE-2024-47668"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/0f27f4f445390cb7f73d4209cb2bf32834dc53da"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/99418ec776a39609f50934720419e0b464ca2283"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/ad5ee9feebc2eb8cfc76ed74a2d6e55343b0e169"
    },
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      "url": "https://git.kernel.org/stable/c/ebeff038744c498a036e7a92eb8e433ae0a386d7"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/d942e855324a60107025c116245095632476613e"
    },
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      "url": "https://git.kernel.org/stable/c/0f078f8ca93b28a34e20bd050f12cd4efeee7c0f"
    },
    {
      "type": "FIX",
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    }
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  "database_specific": {
    "source": "https://git.kernel.org/pub/scm/linux/security/vulns.git",
    "upstream_modified": "2026-08-05T11:52:36Z"
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}