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platform/chrome: sensorhub: Fix memory overread in ring handler

Type: advisorySource: Official CVE List1 source record

In the Linux kernel, the following vulnerability has been resolved: platform/chrome: sensorhub: Fix memory overread in ring handler `max_response` and `sensor_num` are read from different EC commands: - `max_response` is from cros_ec_get_proto_info(). ec_dev->max_response = info->max_response_packet_size - sizeof(struct ec_host_response); - `sensor_num` is from cros_ec_get_sensor_count(). sensor_num = cros_ec_get_sensor_count(ec); With a malfunctioning EC firmware, it is possible that the `msg->insize` (i.e., `fifo_info_length` in the context) could be clamped in cros_ec_cmd_xfer() because `msg->insize` is greater than `max_response`. int fifo_info_length = sizeof(struct ec_response_motion_sense_fifo_info) + sizeof(u16) * sensorhub->sensor_num; This means the number of read bytes could be less than expected. As a result, the subsequent memcpy() in cros_ec_sensorhub_ring_handler() overreads the `resp->fifo_info` buffer. Check the return value of cros_ec_cmd_xfer_status() and abort if the number of bytes read does not match the expected length.

Announced Group revision 1
Original source ↗

CVE-2026-93165

Primary source · Revision 1

Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.

Security context

Source reference: cve:CVE-2026-93165

Linux

Source reference: /containers/cna/affected/0/product

Affected versions
Not stated in this record
Fixed versions
Not stated in this record
Prerequisites
Not stated in this record

Linux

Source reference: /containers/cna/affected/1/product

Affected versions
Not stated in this record
Fixed versions
Not stated in this record
Prerequisites
Not stated in this record

Structured affected-version data

Original package identities and version rules from this source.

[
  {
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "vendor": "Linux",
    "product": "Linux",
    "versions": [
      {
        "status": "affected",
        "version": "145d59baff5944b71551ac518d7fd7d377a9c820",
        "lessThan": "98604cc8fd2578442f49cd113481e8fc83bc0ad3",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "145d59baff5944b71551ac518d7fd7d377a9c820",
        "lessThan": "86bcfab7dff6f0a61cbe0660e5176e907353141b",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "145d59baff5944b71551ac518d7fd7d377a9c820",
        "lessThan": "7e901aaf95828364b05a2120a1bea1a1669bdc9a",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "145d59baff5944b71551ac518d7fd7d377a9c820",
        "lessThan": "7780d93ae28f31fe517417c9451255315d1ad584",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "145d59baff5944b71551ac518d7fd7d377a9c820",
        "lessThan": "ee0403520cdbcf87e853df9aaa9b518a0684ed38",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "145d59baff5944b71551ac518d7fd7d377a9c820",
        "lessThan": "847a5ba0ac75f609e3f88da905251f7a76179145",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "145d59baff5944b71551ac518d7fd7d377a9c820",
        "lessThan": "6268f46d83875d294d75b68b97a5b79953744598",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "145d59baff5944b71551ac518d7fd7d377a9c820",
        "lessThan": "d1ceb2b2324717fa30b44d56ef0c52813e239569",
        "versionType": "git"
      }
    ],
    "programFiles": [
      "drivers/platform/chrome/cros_ec_sensorhub_ring.c"
    ],
    "defaultStatus": "unaffected"
  },
  {
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "vendor": "Linux",
    "product": "Linux",
    "versions": [
      {
        "status": "affected",
        "version": "5.7"
      },
      {
        "status": "unaffected",
        "version": "0",
        "lessThan": "5.7",
        "versionType": "semver"
      },
      {
        "status": "unaffected",
        "version": "5.10.270",
        "versionType": "semver",
        "lessThanOrEqual": "5.10.*"
      },
      {
        "status": "unaffected",
        "version": "5.15.221",
        "versionType": "semver",
        "lessThanOrEqual": "5.15.*"
      },
      {
        "status": "unaffected",
        "version": "6.1.188",
        "versionType": "semver",
        "lessThanOrEqual": "6.1.*"
      },
      {
        "status": "unaffected",
        "version": "6.6.157",
        "versionType": "semver",
        "lessThanOrEqual": "6.6.*"
      },
      {
        "status": "unaffected",
        "version": "6.12.110",
        "versionType": "semver",
        "lessThanOrEqual": "6.12.*"
      },
      {
        "status": "unaffected",
        "version": "6.18.52",
        "versionType": "semver",
        "lessThanOrEqual": "6.18.*"
      },
      {
        "status": "unaffected",
        "version": "7.2.6",
        "versionType": "semver",
        "lessThanOrEqual": "7.2.*"
      },
      {
        "status": "unaffected",
        "version": "7.3",
        "versionType": "original_commit_for_fix",
        "lessThanOrEqual": "*"
      }
    ],
    "programFiles": [
      "drivers/platform/chrome/cros_ec_sensorhub_ring.c"
    ],
    "defaultStatus": "affected"
  }
]
Related CVEs
CVE-2026-93165

Source reference: /cveMetadata/cveId

Publisher severity

high

Source reference: /containers/cna/metrics

Event
#37881 · Revision 1
Added to Heist Feed
Publisher date
Read the original announcement

Revision history

  1. CVE-2026-93165 · Revision 1Source updated