CVE-2025-40316drm/mediatek: Fix device use-after-free on unbind
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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.
- CVSS
- Not yet scored
- Weakness (CWE)
- Not given
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- Linux
- NVD analysis
- Deferred
- Record last updated
- May 23, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
Linux Linux linux:linux (from the name) | from 7d98166183d627c0b9daca7672b2191fae0f8a03 before a5a896f8315de358a2932e2c23c42d550256046a; from 31ce7c089b50c3d3056c37e0e25e7535e4428ae1 before 0142fe895986addf35885b43440718e567121155; from 1f403699c40f0806a707a9a6eed3b8904224021a before 8ba827e09eb586e952d10e39406fa02d10bb591e; from 1f403699c40f0806a707a9a6eed3b8904224021a before 926d002e6d7e2f1fd5c1b53cf6208153ee7d380d; fae58d0155a979a8c414bbc12db09dd4b2f910d0; from 6.6.105 before 6.6.117; from 6.12.45 before 6.12.58; from 6.16.5 before 6.17 | CNA record |
References
- https://git.kernel.org/stable/c/a5a896f8315de358a2932e2c23c42d550256046a
- https://git.kernel.org/stable/c/0142fe895986addf35885b43440718e567121155
- https://git.kernel.org/stable/c/8ba827e09eb586e952d10e39406fa02d10bb591e
- https://git.kernel.org/stable/c/926d002e6d7e2f1fd5c1b53cf6208153ee7d380d
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.