SB20260720297 - Out-of-bounds read in Linux kernel input joystick driver

Description

This security bulletin contains information about 1 vulnerability.

1) Out-of-bounds read (CVE-ID: CVE-2026-63943)

CWE-ID: CWE-125 - Out-of-bounds read

CVSSv4: 5.1 [CVSS:4.0/AV:P/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]

The vulnerability allows an attacker with physical access to cause a denial of service.

The vulnerability exists due to an out-of-bounds read in xpadone_process_packet() when processing a crafted GIP_CMD_INPUT packet from a device. An attacker with physical access can supply a malformed controller packet with a short length to cause a denial of service.

The issue is triggered by a broken or malicious controller that controls both the reported packet length and packet contents.

Remediation

Install update from vendor's website.

References

• https://git.kernel.org/stable/c/37ec54abfdd63a63fd50734a9c4e4cbc1e5795af
• https://git.kernel.org/stable/c/6346b0895b574ce45f3747b9c508c72f70e6abef
• https://git.kernel.org/stable/c/6cdc46b38cf146ce81d4831b6472dbf7731849a2
• https://git.kernel.org/stable/c/9749db57233b396353ad5dee81eec9d9880c9246
• https://git.kernel.org/stable/c/bcfb4833cd4078a1a356ef451838b75cd233099e