---
id: CVE-2026-93165
title: |-
  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_…
summary: |-
  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_…
severity: high
cvss: 7.7
cvssVector: 'CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H'
vendor: Linux
product: Linux
affected:
  - >-
    Linux >= 145d59baff5944b71551ac518d7fd7d377a9c820 <
    98604cc8fd2578442f49cd113481e8fc83bc0ad3
  - >-
    Linux >= 145d59baff5944b71551ac518d7fd7d377a9c820 <
    86bcfab7dff6f0a61cbe0660e5176e907353141b
  - >-
    Linux >= 145d59baff5944b71551ac518d7fd7d377a9c820 <
    7e901aaf95828364b05a2120a1bea1a1669bdc9a
  - >-
    Linux >= 145d59baff5944b71551ac518d7fd7d377a9c820 <
    7780d93ae28f31fe517417c9451255315d1ad584
  - >-
    Linux >= 145d59baff5944b71551ac518d7fd7d377a9c820 <
    ee0403520cdbcf87e853df9aaa9b518a0684ed38
  - >-
    Linux >= 145d59baff5944b71551ac518d7fd7d377a9c820 <
    847a5ba0ac75f609e3f88da905251f7a76179145
  - >-
    Linux >= 145d59baff5944b71551ac518d7fd7d377a9c820 <
    6268f46d83875d294d75b68b97a5b79953744598
  - >-
    Linux >= 145d59baff5944b71551ac518d7fd7d377a9c820 <
    d1ceb2b2324717fa30b44d56ef0c52813e239569
  - Linux 5.7
published: '2026-09-17'
updated: '2026-09-18'
sourceUpdated: '2026-09-18T18:18:23.190'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-93165'
references:
  - url: 'https://git.kernel.org/stable/c/6268f46d83875d294d75b68b97a5b79953744598'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/7780d93ae28f31fe517417c9451255315d1ad584'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/7e901aaf95828364b05a2120a1bea1a1669bdc9a'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/847a5ba0ac75f609e3f88da905251f7a76179145'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/86bcfab7dff6f0a61cbe0660e5176e907353141b'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/98604cc8fd2578442f49cd113481e8fc83bc0ad3'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/d1ceb2b2324717fa30b44d56ef0c52813e239569'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/ee0403520cdbcf87e853df9aaa9b518a0684ed38'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
tags:
  - nvd
  - cve.org
epss: 0.0019
epssPercentile: 0.07738
ingestedAt: '2026-09-17T16:21:47.733Z'
---

## Overview

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.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.