CVE-2026-90215

CVE-2026-90215 is a reference-count leak in the Linux kernel's MTD UBI (Unsorted Block Images) subsystem. The function ubi_detach_mtd_dev() obtains a device reference via ubi_get_device() before checking whether the UBI device is busy; on the busy return path it drops ubi->ref_count but leaves...

EUVD-2026-81808

In the Linux kernel, the following vulnerability has been resolved: mtd: ubi: Release device reference on busy detach ubidetachmtddev obtains a device reference through ubigetdevice before checking whether the UBI device is busy. The busy return path drops ubi-refcount but leaves the device...