CVE-2026-98518None▾ SunlitIn the Linux kernel, the following vulnerability has been resolved: drm/nouveau/dmem: pin VRAM for the whole registered range Commit c32287471077 ("gpu/drm/nouveau: enable THP support for GPU memory migration") grew the device-private …
▾ Sunlit zone — Low / medium · no exploitation signal
impact 2.8 · likelihood 0 · exploitation 0
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In the Linux kernel, the following vulnerability has been resolved:
drm/nouveau/dmem: pin VRAM for the whole registered range
Commit c32287471077 ("gpu/drm/nouveau: enable THP support for GPU memory migration") grew the device-private region that nouveau_dmem_chunk_alloc() registers from DMEM_CHUNK_SIZE to DMEM_CHUNK_SIZE * NR_CHUNKS, but left the VRAM buffer object backing that region at DMEM_CHUNK_SIZE.
nouveau_dmem_page_addr() returns chunk->bo->offset plus the page's offset within the registered region, so every page past the first chunk resolves to VRAM outside the buffer object.
Size the buffer object to the region it backs.
Linux >= c3228747107705d47c7e9a03598a434a0380cb73 < 06c69c64686a31783c8bec6495dc22822d38c4ceLinux >= c3228747107705d47c7e9a03598a434a0380cb73 < 64ca4cdd1031206424e6455f0ae4fb0560d8f46aLinux 6.19Refer to the linked advisories for vendor-supplied fixes and affected version ranges.
Connected by shared product, vendor, weakness, or advisory.
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