{
  "schema_version": "1.6.1",
  "id": "RPI-CVE-2026-93165",
  "modified": "2026-10-07T17:22:01Z",
  "upstream": [
    "CVE-2026-93165"
  ],
  "published": "2026-09-17T16:10:40Z",
  "summary": "platform/chrome: sensorhub: Fix memory overread in ring handler",
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nplatform/chrome: sensorhub: Fix memory overread in ring handler\n\n`max_response` and `sensor_num` are read from different EC commands:\n\n- `max_response` is from cros_ec_get_proto_info().\n    ec_dev->max_response = info->max_response_packet_size -\n                                    sizeof(struct ec_host_response);\n\n- `sensor_num` is from cros_ec_get_sensor_count().\n    sensor_num = cros_ec_get_sensor_count(ec);\n\nWith a malfunctioning EC firmware, it is possible that the `msg->insize`\n(i.e., `fifo_info_length` in the context) could be clamped in\ncros_ec_cmd_xfer() because `msg->insize` is greater than `max_response`.\n\n    int fifo_info_length =\n            sizeof(struct ec_response_motion_sense_fifo_info) +\n            sizeof(u16) * sensorhub->sensor_num;\n\nThis means the number of read bytes could be less than expected.  As a\nresult, the subsequent memcpy() in cros_ec_sensorhub_ring_handler()\noverreads the `resp->fifo_info` buffer.\n\nCheck the return value of cros_ec_cmd_xfer_status() and abort if the\nnumber of bytes read does not match the expected length.",
  "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-2026-93165"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/98604cc8fd2578442f49cd113481e8fc83bc0ad3"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/86bcfab7dff6f0a61cbe0660e5176e907353141b"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/7e901aaf95828364b05a2120a1bea1a1669bdc9a"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/7780d93ae28f31fe517417c9451255315d1ad584"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/ee0403520cdbcf87e853df9aaa9b518a0684ed38"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/847a5ba0ac75f609e3f88da905251f7a76179145"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/6268f46d83875d294d75b68b97a5b79953744598"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/d1ceb2b2324717fa30b44d56ef0c52813e239569"
    }
  ],
  "database_specific": {
    "source": "https://git.kernel.org/pub/scm/linux/security/vulns.git",
    "upstream_modified": "2026-09-18T17:55:42Z"
  }
}