Description
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
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
Linux Linux
Default version status: unaffected
7d98166183d627c0b9daca7672b2191fae0f8a03 to < a5a896f8315de358a2932e2c23c42d550256046aaffected31ce7c089b50c3d3056c37e0e25e7535e4428ae1 to < 0142fe895986addf35885b43440718e567121155affected1f403699c40f0806a707a9a6eed3b8904224021a to < 8ba827e09eb586e952d10e39406fa02d10bb591eaffected1f403699c40f0806a707a9a6eed3b8904224021a to < 926d002e6d7e2f1fd5c1b53cf6208153ee7d380daffectedfae58d0155a979a8c414bbc12db09dd4b2f910d0affected6.6.105 to < 6.6.117affected6.12.45 to < 6.12.58affected6.16.5 to < 6.17affected
Linux Linux
Default version status: affected
6.17affected0 to < 6.17unaffected6.6.117 to ≤ 6.6.*unaffected6.12.58 to ≤ 6.12.*unaffected6.17.8 to ≤ 6.17.*unaffected6.18 to ≤ *unaffected