{
  "schema_version": "1.6.1",
  "id": "RPI-CVE-2026-80689",
  "modified": "2026-10-07T17:22:01Z",
  "upstream": [
    "CVE-2026-80689"
  ],
  "published": "2026-08-28T06:53:24Z",
  "summary": "tracing/mmiotrace: Add NULL check for mmio_trace_array in logging functions",
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\ntracing/mmiotrace: Add NULL check for mmio_trace_array in logging functions\n\nmmio_trace_rw() and mmio_trace_mapping() retrieve mmio_trace_array into\ntr and pass it to __trace_mmiotrace_rw() and __trace_mmiotrace_map().\nIf these functions are invoked while mmio_trace_array is NULL (e.g. before\ninitialization or after disabled), accessing tr->array_buffer.buffer will\nresult in a NULL pointer dereference crash.\n\nFix this by adding an explicit NULL check for tr at the beginning of\n__trace_mmiotrace_rw() and __trace_mmiotrace_map().",
  "affected": [
    {
      "package": {
        "ecosystem": "Raspberry Pi OS:12",
        "name": "linux"
      },
      "versions": [
        "1:6.1.47-1+rpt4"
      ],
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "linux-image-6.1.0-rpi3-rpi-2712",
            "binary_version": "1:6.1.47-1+rpt4"
          },
          {
            "binary_name": "linux-image-6.1.0-rpi3-rpi-v6",
            "binary_version": "1:6.1.47-1+rpt4"
          },
          {
            "binary_name": "linux-image-6.1.0-rpi3-rpi-v7",
            "binary_version": "1:6.1.47-1+rpt4"
          },
          {
            "binary_name": "linux-image-6.1.0-rpi3-rpi-v7l",
            "binary_version": "1:6.1.47-1+rpt4"
          },
          {
            "binary_name": "linux-image-6.1.0-rpi3-rpi-v8",
            "binary_version": "1:6.1.47-1+rpt4"
          }
        ]
      },
      "database_specific": {
        "per_version": {
          "1:6.1.47-1+rpt4": {
            "linux_commit": "655fc658a15ae7a6f37103754adb39ba52a9a14e",
            "upstream_version": "6.1.47",
            "assessment": "commit ancestry (strak rule)",
            "upstream_fixed": "6.1.188",
            "compiled_filter": false
          }
        }
      }
    }
  ],
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-80689"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/dc1b1a057b3bb901f83433700e604fe0ae67c5f2"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/6aee2d478545c089dd5d055d3c9f0c7ea034fb80"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/4e4ab09db7899d7f2d2293a18adf0fa200a27e73"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/2df964d141270c40f07547b0c2e0a51e2573d46d"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/876014b4eeb927146430e7591cf959a7ceb8d64a"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/a20a0010eb6485f60cd64e15ebc85a4bd388642e"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/60234845142fddb27db89ebc00a65178421fb3a4"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/12b80cdbc54cf615b4717a4e8180063408091ea2"
    }
  ],
  "database_specific": {
    "source": "https://git.kernel.org/pub/scm/linux/security/vulns.git",
    "upstream_modified": "2026-09-14T12:06:03Z"
  }
}