hsr: Prevent use after free in prp_create_tagged_frame()

{
  "id": "54f385d5b032da11c4bfc23920484948bcb00a770dfa7be49e21d36ab9465842",
  "url": "https://osv.dev/vulnerability/CVE-2023-52846",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "hsr: Prevent use after free in prp_create_tagged_frame()",
    "summary": "In the Linux kernel, the following vulnerability has been resolved: hsr: Prevent use after free in prp_create_tagged_frame() The prp_fill_rct() function can fail. In that situation, it frees the skb and returns NULL. Meanwhile on the success path, it returns the original skb. So it's straight forward to fix bug by using the returned value.",
    "evidence": "osv:CVE-2023-52846",
    "products": [
      {
        "name": {
          "value": "Kernel",
          "evidence": "/affected/1/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "5.10.201",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "5.15.139",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "6.1.63",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "6.5.12",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "6.6.2",
            "evidence": "/affected/1/ranges"
          }
        ],
        "affected_versions": []
      }
    ],
    "severity": "high",
    "structured": {
      "id": "CVE-2023-52846",
      "aliases": [
        "CVE-2023-52846"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
              "type": "GIT",
              "events": [
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                  "fixed": "a1a485e45d24b1cd8fe834fd6f1b06e2903827da"
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                {
                  "fixed": "6086258bd5ea7b5c706ff62da42b8e271b2401db"
                },
                {
                  "fixed": "1787b9f0729d318d67cf7c5a95f0c3dba9a7cc18"
                },
                {
                  "fixed": "d103fb6726904e353b4773188ee3d3acb4078363"
                },
                {
                  "fixed": "876f8ab52363f649bcc74072157dfd7adfbabc0d"
                }
              ]
            }
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2023-52846.json"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "5.9.0"
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                  "fixed": "5.10.201"
                }
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            },
            {
              "type": "ECOSYSTEM",
              "events": [
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                  "introduced": "5.11.0"
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                {
                  "fixed": "5.15.139"
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            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "5.16.0"
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                {
                  "fixed": "6.1.63"
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              "type": "ECOSYSTEM",
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              "type": "ECOSYSTEM",
              "events": [
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                  "introduced": "6.6.0"
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                {
                  "fixed": "6.6.2"
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              ]
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          ],
          "package": {
            "name": "Kernel",
            "ecosystem": "Linux"
          },
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2023-52846.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:28.986759692Z",
      "provider": "osv",
      "references": [
        "https://git.kernel.org/stable/c/1787b9f0729d318d67cf7c5a95f0c3dba9a7cc18",
        "https://git.kernel.org/stable/c/6086258bd5ea7b5c706ff62da42b8e271b2401db",
        "https://git.kernel.org/stable/c/876f8ab52363f649bcc74072157dfd7adfbabc0d",
        "https://git.kernel.org/stable/c/a1a485e45d24b1cd8fe834fd6f1b06e2903827da",
        "https://git.kernel.org/stable/c/d103fb6726904e353b4773188ee3d3acb4078363",
        "https://git.kernel.org/stable/c/ddf4e04e946aaa6c458b8b6829617cc44af2bffd",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/52xxx/CVE-2023-52846.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2023-52846",
        "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-2023-52846.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2023-52846",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 495536,
  "published_at": "2024-05-21T15:31:43.863+00:00"
}