Threats tagged 'ghsa-27vj-fv42-fgqc'

A vulnerability in the Linux kernel's drm/xe component related to cache flushing was resolved. The issue involves the kernel not properly flushing the LSC untyped L1 dataport cache after certain GPU command batches, which could lead to stale data leakage when memory is reclaimed or evicted. This flaw affects newer Intel GPU platforms starting with Meteor Lake (MTL) and later, where hardware no longer couples the L1 cache flush with the pipeline flush as it did on earlier platforms. The fix explicitly sets the cache flush bit on affected platforms to ensure the L1 cache is clean before memory reuse.