Out-of-bounds read in Linux kernel - CVE-2026-80964
Published: September 12, 2026
Vulnerability identifier: #VU149427
CSH Severity: Low
CVSS v4: 4.8 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-80964
CWE-ID: CWE-125
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a local user to perform an out-of-bounds read.
The vulnerability exists due to an out-of-bounds read in the ALSA virmidi driver probe function when manually binding a device through the sysfs interface with an invalid card index. A local user can manually bind a device with an invalid card index to perform an out-of-bounds read.
Affected software
Linux kernel
How to mitigate CVE-2026-80964
Install security update from vendor's repository.
Linux kernel - update to 7.0 rc3