CVE-2025-40316: Linux

EPSS: 0.2% chance of exploitation in the next 30 days.

In the Linux kernel, the following vulnerability has been resolved: drm/mediatek: Fix device use-after-free on unbind A recent change fixed device reference leaks when looking up drm platform device driver data during bind() but failed to remove a partial fix which had been added by commit 80805b62ea5b ("drm/mediatek: Fix kobject put for component sub-drivers"). This results in a reference imbalance on component bind() failures and on unbind() which could lead to a user-after-free. Make sure to only drop the references after retrieving the driver data by effectively reverting the previous partial fix. Note that holding a reference to a device does not prevent its driver data from going away so there is no point in keeping the reference.

Affected products

• Linux Linux: from 6.6.105, before 6.6.117 (fixed in 6.6.117); from 6.12.45, before 6.12.58 (fixed in 6.12.58); from 6.16.5, before 6.17 (fixed in 6.17); from 6.17, before 6.17.8 (fixed in 6.17.8)

Published 2025-12-08. Last modified 2026-06-17.