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HIGH

HID: hid-goodix-spi: validate report size to prevent stack buffer overflow

Published Jul 25, 2026

Description

goodix_hid_set_raw_report() builds a protocol frame in a 128-byte stack buffer (tmp_buf), writing an 11-12 byte header followed by the caller-supplied report data. The HID core caps report size at HID_MAX_BUFFER_SIZE (16384) by default, while the driver does not set hid_ll_driver.max_buffer_size and performs no bounds checking before copying the payload:

memcpy(tmp_buf + tx_len, buf, len);

A hidraw SET_REPORT ioctl with a report larger than ~116 bytes overflows the stack buffer.

Add a size check after constructing the header, rejecting reports that would exceed the buffer capacity.

Discovered by Atuin - Automated Vulnerability Discovery Engine.

Affected products

Remediation

No remediation recorded yet.

References (9)

Change history (0)

No recorded changes yet.

Sources
CVE.org / MITRE
Status PUBLISHED
Assigner Linux
Published Jul 25, 2026
Updated Aug 17, 2026
Reserved Jul 19, 2026
NVD
Status Analyzed
Modified Sep 4, 2026
Red Hat
Severity Moderate
Public date Jul 25, 2026