SB20260918350 - Improper Validation of Specified Quantity in Input in Linux kernel hid driver

Description

This security bulletin contains information about 1 vulnerability.

1) Improper Validation of Specified Quantity in Input (CVE-ID: CVE-2026-90328)

CWE-ID: CWE-1284 - Improper Validation of Specified Quantity in Input

CVSSv4: 0 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:N/SC:N/SI:N/SA:N]

The vulnerability allows a local user to trigger processing of truncated Steam Controller feature reports.

The vulnerability exists due to improper validation of a declared report length in the steam_recv_report function when handling Steam Controller feature reports. A local user can provide a feature report whose declared length exceeds the number of bytes read to trigger processing of truncated feature reports.

Remediation

Install update from vendor's website.

References

• https://git.kernel.org/stable/c/33ff7b49c38b39b1f3d27db508ac0720fb25c08a
• https://git.kernel.org/stable/c/93c5cc35bcd9f62db589a21945b49691dccdd99d
• https://git.kernel.org/stable/c/f694ea0ead544080949e409a7c6885ee1fc77a98