{
  "schema_version": "1.6.1",
  "id": "RPI-CVE-2026-43210",
  "modified": "2026-10-07T17:22:01Z",
  "upstream": [
    "CVE-2026-43210"
  ],
  "published": "2026-05-06T11:29:17Z",
  "summary": "tracing: ring-buffer: Fix to check event length before using",
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\ntracing: ring-buffer: Fix to check event length before using\n\nCheck the event length before adding it for accessing next index in\nrb_read_data_buffer(). Since this function is used for validating\npossibly broken ring buffers, the length of the event could be broken.\nIn that case, the new event (e + len) can point a wrong address.\nTo avoid invalid memory access at boot, check whether the length of\neach event is in the possible range before using it.",
  "affected": [
    {
      "package": {
        "ecosystem": "Raspberry Pi OS:12",
        "name": "linux"
      },
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        "1:6.12.25-1+rpt1",
        "1:6.12.34-1+rpt1~bookworm",
        "1:6.12.47-1+rpt1~bookworm",
        "1:6.12.62-1+rpt1~bookworm"
      ],
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            "binary_version": "1:6.12.20-1+rpt1~bpo12+1"
          },
          {
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            "binary_version": "1:6.12.20-1+rpt1~bpo12+1"
          },
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            "binary_version": "1:6.12.25-1+rpt1"
          },
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            "binary_version": "1:6.12.34-1+rpt1~bookworm"
          },
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          },
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        "name": "linux"
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  ],
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-43210"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/b4700c089a10f89de3a5149d57f8a58306458982"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/5026010110a5ad2268d8c23e1e286ab7c736f7ac"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/9eb80e54494ef1efef8a64bec4ffa672c9cf411e"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/912b0ee248c529a4f45d1e7f568dc1adddbf2a4a"
    }
  ],
  "database_specific": {
    "source": "https://git.kernel.org/pub/scm/linux/security/vulns.git",
    "upstream_modified": "2026-05-12T04:54:46Z"
  }
}