CVE-2026-64367 PUBLISHED

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

Assigner: Linux
Reserved: 19.07.2026 Published: 25.07.2026 Updated: 25.07.2026

In the Linux kernel, the following vulnerability has been resolved:

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

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:

<pre>memcpy(tmp_buf + tx_len, buf, len); </pre>

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.

Product Status

Vendor Linux
Product Linux
Versions Default: unaffected
  • affected from 75e16c8ce283bb88e77704dc8fa041c577caac0f to ad47ad624f2fce0bc44bbadb664242461a97d774 (excl.)
  • affected from 75e16c8ce283bb88e77704dc8fa041c577caac0f to dae1d000ddfd5c2140b036e47fff0c497ae9c64b (excl.)
  • affected from 75e16c8ce283bb88e77704dc8fa041c577caac0f to 835fcc8655569737e3f057d42875a96259db74c2 (excl.)
  • affected from 75e16c8ce283bb88e77704dc8fa041c577caac0f to db0a0768d09273aadadeb76730cd658d720333a4 (excl.)
Vendor Linux
Product Linux
Versions Default: affected
  • Version 6.12 is affected
  • unaffected from 0 to 6.12 (excl.)
  • unaffected from 6.12.96 to 6.12.* (incl.)
  • unaffected from 6.18.39 to 6.18.* (incl.)
  • unaffected from 7.1.4 to 7.1.* (incl.)
  • unaffected from 7.2-rc1 to * (incl.)

References