crypto: lib/mpi - Fix unexpected pointer access in mpi_ec_init

{
  "id": "c1ea21b282af3c0b6309073a0ca4741ec16f5176f9b939bfae08c081c65e8869",
  "url": "https://osv.dev/vulnerability/CVE-2023-52616",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "crypto: lib/mpi - Fix unexpected pointer access in mpi_ec_init",
    "summary": "In the Linux kernel, the following vulnerability has been resolved: crypto: lib/mpi - Fix unexpected pointer access in mpi_ec_init When the mpi_ec_ctx structure is initialized, some fields are not cleared, causing a crash when referencing the field when the structure was released. Initially, this issue was ignored because memory for mpi_ec_ctx is allocated with the __GFP_ZERO flag. For example, this error will be triggered when calculating the Za value for SM2 separately.",
    "evidence": "osv:CVE-2023-52616",
    "products": [
      {
        "name": {
          "value": "Kernel",
          "evidence": "/affected/1/package/name"
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        "prerequisites": [],
        "fixed_versions": [
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            "value": "5.10.210",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "5.15.149",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "6.1.79",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "6.6.15",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "6.7.3",
            "evidence": "/affected/1/ranges"
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        ],
        "affected_versions": []
      }
    ],
    "severity": "high",
    "structured": {
      "id": "CVE-2023-52616",
      "aliases": [
        "CVE-2023-52616"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"
        }
      ],
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            "name": "Kernel",
            "ecosystem": "Linux"
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          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2023-52616.json"
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      ],
      "modified": "2026-10-28T02:30:35.304533068Z",
      "provider": "osv",
      "references": [
        "https://git.kernel.org/stable/c/0c3687822259a7628c85cd21a3445cbe3c367165",
        "https://git.kernel.org/stable/c/2bb86817b33c9d704e127f92b838035a72c315b6",
        "https://git.kernel.org/stable/c/7abdfd45a650c714d5ebab564bb1b988f14d9b49",
        "https://git.kernel.org/stable/c/7ebf812b7019fd2d4d5a7ca45ef4bf3a6f4bda0a",
        "https://git.kernel.org/stable/c/ba3c5574203034781ac4231acf117da917efcd2a",
        "https://git.kernel.org/stable/c/bb44477d4506e52785693a39f03cdc6a2c5e8598",
        "https://lists.debian.org/debian-lts-announce/2024/06/msg00017.html",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/52xxx/CVE-2023-52616.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2023-52616",
        "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/2023/52xxx/CVE-2023-52616.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2023-52616",
        "evidence": "/id"
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    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 502163,
  "published_at": "2024-03-18T10:14:46.066+00:00"
}