CVE-2026-68303
Unknown
Description
In the Linux kernel, the following vulnerability has been resolved: drm/vc4: hvs/v3d: Fix null dereference in unbind The hvs and v3d drivers use dev_get_drvdata(master) in their unbind functions. Since the vc4-drm gets removed before its dependent drivers (vc4_hvs/vc4_v3d) the vc4_hvs_unbind/vc4_v3d_unbind functions try to get drvdata of its master and fails with a null dereference error. Use the data pointer passed to the unbind functions directly instead of dev_get_drvdata(master). This avoids using potentially freed memory.
SeverityUnknown
CVSS—
Exploit probability—
Product
Linux
PublishedAug 10, 2026
First seenAug 10, 2026
How to fix
Update
- Linux Linux3ed3d0b31500b11c8fd9ef96b7703edbccb32e2e, 3be8dcc1a5854cf24cc332e0d6fc865c47ff49a1, 8f62aae059e06746a18a00af27179c3c0f17f4c7, 708688ec31ac6b35103ba364dc300a09930079d4, 261f0a3f0ac03248284f5116d3258f89c9642215, 7dc3680b7ffe01add3e9299fde8471d2dd53a8ae or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| Linux Linux | c8b75bca92cbf064b9fa125fc74a85994452e935 ≤ v < 3ed3d0b31500b11c8fd9ef96b7703edbccb32e2e, c8b75bca92cbf064b9fa125fc74a85994452e935 ≤ v < 3be8dcc1a5854cf24cc332e0d6fc865c47ff49a1, c8b75bca92cbf064b9fa125fc74a85994452e935 ≤ v < 8f62aae059e06746a18a00af27179c3c0f17f4c7, c8b75bca92cbf064b9fa125fc74a85994452e935 ≤ v < 708688ec31ac6b35103ba364dc300a09930079d4, c8b75bca92cbf064b9fa125fc74a85994452e935 ≤ v < 261f0a3f0ac03248284f5116d3258f89c9642215, c8b75bca92cbf064b9fa125fc74a85994452e935 ≤ v < 7dc3680b7ffe01add3e9299fde8471d2dd53a8ae, 4.4 | 3ed3d0b31500b11c8fd9ef96b7703edbccb32e2e, 3be8dcc1a5854cf24cc332e0d6fc865c47ff49a1, 8f62aae059e06746a18a00af27179c3c0f17f4c7, 708688ec31ac6b35103ba364dc300a09930079d4, 261f0a3f0ac03248284f5116d3258f89c9642215, 7dc3680b7ffe01add3e9299fde8471d2dd53a8ae |
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