{
  "schema_version": "1.6.1",
  "id": "RPI-CVE-2023-52615",
  "modified": "2026-10-07T17:22:01Z",
  "upstream": [
    "CVE-2023-52615"
  ],
  "published": "2024-03-18T10:15:21Z",
  "summary": "hwrng: core - Fix page fault dead lock on mmap-ed hwrng",
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nhwrng: core - Fix page fault dead lock on mmap-ed hwrng\n\nThere is a dead-lock in the hwrng device read path.  This triggers\nwhen the user reads from /dev/hwrng into memory also mmap-ed from\n/dev/hwrng.  The resulting page fault triggers a recursive read\nwhich then dead-locks.\n\nFix this by using a stack buffer when calling copy_to_user.",
  "affected": [
    {
      "package": {
        "ecosystem": "Raspberry Pi OS:12",
        "name": "linux"
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        "1:6.1.58-1+rpt2",
        "1:6.1.63-1+rpt1",
        "1:6.1.73-1+rpt1"
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  ],
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://www.cve.org/CVERecord?id=CVE-2023-52615"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/eafd83b92f6c044007a3591cbd476bcf90455990"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/5030d4c798863ccb266563201b341a099e8cdd48"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/c6a8111aacbfe7a8a70f46cc0de8eed00561693c"
    },
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      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/26cc6d7006f922df6cc4389248032d955750b2a0"
    },
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      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/aa8aa16ed9adf1df05bb339d588cf485a011839e"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/ecabe8cd456d3bf81e92c53b074732f3140f170d"
    },
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      "url": "https://git.kernel.org/stable/c/6822a14271786150e178869f1495cc03e74c5029"
    },
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  "database_specific": {
    "source": "https://git.kernel.org/pub/scm/linux/security/vulns.git",
    "upstream_modified": "2026-05-12T04:54:46Z"
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}