SB20260912407 - Improper Validation of Array Index in Linux kernel drivers
Published: September 12, 2026
Security Bulletin ID
SB20260912407
CSH Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Information disclosure
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Improper Validation of Array Index (CVE-ID: CVE-2026-80965)
CWE-ID: CWE-129 - Improper Validation of Array Index
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 cause an out-of-bounds access.
The vulnerability exists due to improper validation of a card index in the ALSA serial-u16550 driver's snd_serial_probe function when manually binding a device through the sysfs interface. A local user can bind a device with an invalid card index to cause an out-of-bounds access.
Remediation
Install update from vendor's website.