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CVE-2024-26939 is a use-after-free vulnerability in the Linux kernel Intel DRM i915 driver's VMA management. A race can occur between VMA destruction/parking and asynchronous VMA retirement: the VMA active count can reach zero while __active_retire() continues to deactivate and retire the VMA, allowing concurrent i915_vma_destroy() processing to free an object that retirement code may still use. The upstream fix holds an untracked GT wakeref while a non-global-GTT VMA is active and releases it asynchronously only after deactivation, preventing GT parking and VMA finalization before retirement completes.
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Linux kernel Intel i915 VMA use-after-free race flaw.
Use-after-free vulnerability in the Linux kernel Intel i915 VMA implementation during a destroy-versus-retire race.
Linux kernel DRM i915 virtual-memory-area use-after-free condition during a destroy-versus-retire race.
A Linux kernel DRM Intel i915 virtual-memory-area (VMA) use-after-free vulnerability caused by a race between VMA destruction and retirement.
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Cross-references every affected SKU, including bundled OEM variants.
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