Memory leak in Linux kernel - CVE-2026-89735
Published: September 12, 2026
Vulnerability identifier: #VU149078
CSH Severity: Low
CVSS v4: 4.8 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-89735
CWE-ID: CWE-401
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a local user to cause a memory leak.
The vulnerability exists due to improper resource cleanup in the Linux kernel MIDI 2 USB gadget function's configfs default groups when tearing down function instances or cleaning up endpoint options. A local user can tear down a MIDI 2 gadget function instance or clean up endpoint options to cause a memory leak.
Affected software
Linux kernel
How to mitigate CVE-2026-89735
Install security update from vendor's repository.