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THREAT OPS › Threat News › [NVD] 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 CONFIG_DMA_API_DEBUG_SG is enabled, importing a udmabuf into a DRM driver (e.g. amdgpu for video playback in GNOME Videos / Showtime

[NVD] 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 CONFIG_DMA_API_DEBUG_SG is enabled, importing a udmabuf into a DRM driver (e.g. amdgpu for video playback in GNOME Videos / Showtime

mednvdPublished 2026-08-06

CVE-2026-64590 CVSS: None Published: 2026-08-06T08:16:34.357

In the Linux kernel, the following vulnerability has been resolved:

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

When CONFIG_DMA_API_DEBUG_SG is enabled, importing a udmabuf into a DRM driver (e.g. amdgpu for video playback in GNOME Videos / Showtime) triggers a spurious warning:

DMA-API: amdgpu 0000:03

Indicators of compromise

CVE-2026-64590cve

Original source: https://nvd.nist.gov/vuln/detail/CVE-2026-64590