Description (CNA)
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 (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected 7d98166183d627c0b9daca7672b2191fae0f8a03 before a5a896f8315de358a2932e2c23c42d550256046a; affected 31ce7c089b50c3d3056c37e0e25e7535e4428ae1 before 0142fe895986addf35885b43440718e567121155; affected 1f403699c40f0806a707a9a6eed3b8904224021a before 8ba827e09eb586e952d10e39406fa02d10bb591e; affected 1f403699c40f0806a707a9a6eed3b8904224021a before 926d002e6d7e2f1fd5c1b53cf6208153ee7d380d; affected fae58d0155a979a8c414bbc12db09dd4b2f910d0; affected 6.6.105 before 6.6.117; affected 6.12.45 before 6.12.58; affected 6.16.5 before 6.17 |
| Linux / Linux | affected 6.17; unaffected 0 before 6.17; unaffected 6.6.117 through 6.6.*; unaffected 6.12.58 through 6.12.*; unaffected 6.17.8 through 6.17.*; unaffected 6.18 through * |
CWE
No CWE identifiers supplied.