Incomplete cleanup in Linux kernel - CVE-2026-90402
Published: September 18, 2026
Vulnerability identifier: #VU151082
CSH Severity: Low
CVSS v4: 2 [CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-90402
CWE-ID: CWE-459
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a local user to leave a controller device registered after a sysfs-file creation error.
The vulnerability exists due to incomplete cleanup in mhi_register_controller() when creating the optional trigger_edl sysfs file. A local user can cause sysfs_create_file() to fail during controller registration to leave a controller device registered after an error.
Affected software
Linux kernel
How to mitigate CVE-2026-90402
Install security update from vendor's repository.