CVE-2026-64590

The CVE-2026-64590 entry concerns the Linux kernel dma-buf/udmabuf path where, with CONFIG_DMA_API_DEBUG_SG enabled, importing udmabuf into a DRM driver (e.g., amdgpu) could emit a spurious cacheline EEXIST warning due to overlapping per-page SG mappings. The fix is to pass DMA_ATTR_SKIP_CPU_SYNC...

CVE-2026-64590 dma-buf/udmabuf: skip redundant cpu sync to fix cacheline EEXIST warning

In the Linux kernel, the following vulnerability has been resolved: dma-buf/udmabuf: skip redundant cpu sync to fix cacheline EEXIST warning When CONFIGDMAAPIDEBUGSG is enabled, importing a udmabuf into a DRM driver e.g. amdgpu for video playback in GNOME Videos / Showtime triggers a spurious...

CVE-2026-64590

In the Linux kernel, the following vulnerability has been resolved: dma-buf/udmabuf: skip redundant cpu sync to fix cacheline EEXIST warning When CONFIGDMAAPIDEBUGSG is enabled, importing a udmabuf into a DRM driver e.g. amdgpu for video playback in GNOME Videos / Showtime triggers a spurious...