CVE-2026-93165

/// Technical description

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_i

/// Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

/// References