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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.
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Debian | — | Upgrade linux | Jul 23, 2026 | Jul 23, 2026 |
| Ubuntu | — | Upgrade linux-image-aws-6.17Upgrade linux-image-raspiUpgrade linux-image-azure-6.17Upgrade linux-image-6.17.0-1008-azureUpgrade linux-image-generic-64k-6.17Upgrade linux-image-6.17.0-1007-oracle-64kUpgrade linux-image-aws-64k-6.17Upgrade linux-image-generic-64kUpgrade linux-image-generic-6.17Upgrade linux-image-6.17.0-1011-oemUpgrade linux-image-aws-64kUpgrade linux-image-6.17.0-14-genericUpgrade linux-image-genericUpgrade linux-image-oracle-64k-6.17Upgrade linux-image-gcp-64kUpgrade linux-image-gcp-64k-6.17Upgrade linux-image-6.17.0-1007-gcp-64kUpgrade linux-image-6.17.0-1007-gcpUpgrade linux-image-oracle-64kUpgrade linux-image-virtual-6.17Upgrade linux-image-6.17.0-1007-awsUpgrade linux-image-virtualUpgrade linux-image-realtimeUpgrade linux-image-6.17.0-1007-aws-64kUpgrade linux-image-oracle-6.17Upgrade linux-image-azureUpgrade linux-image-6.17.0-1008-raspiUpgrade linux-image-realtime-6.17Upgrade linux-image-awsUpgrade linux-image-oem-6.17Upgrade linux-image-gcpUpgrade linux-image-6.17.0-1006-realtimeUpgrade linux-image-oracleUpgrade linux-image-gcp-6.17Upgrade linux-image-6.17.0-1007-oracleUpgrade linux-image-6.17.0-14-generic-64kUpgrade linux-image-raspi-6.17 | Feb 13, 2026 | Feb 12, 2026 |
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