{"id":"CVE-2026-98518","published":"2026-10-18T16:17:03.163","lastModified":"2026-10-19T10:19:05.660","description":"In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/nouveau/dmem: pin VRAM for the whole registered range\n\nCommit c32287471077 (\"gpu/drm/nouveau: enable THP support for GPU memory\nmigration\") grew the device-private region that\nnouveau_dmem_chunk_alloc() registers from DMEM_CHUNK_SIZE to\nDMEM_CHUNK_SIZE * NR_CHUNKS, but left the VRAM buffer object backing that\nregion at DMEM_CHUNK_SIZE.\n\nnouveau_dmem_page_addr() returns chunk->bo->offset plus the page's offset\nwithin the registered region, so every page past the first chunk resolves\nto VRAM outside the buffer object.\n\nSize the buffer object to the region it backs.","cvssScore":null,"cvssSeverity":null,"cvssVector":null,"cwes":[],"vendors":[],"products":[],"references":[{"url":"https://git.kernel.org/stable/c/06c69c64686a31783c8bec6495dc22822d38c4ce","tags":[]},{"url":"https://git.kernel.org/stable/c/64ca4cdd1031206424e6455f0ae4fb0560d8f46a","tags":[]}],"exploitRefs":[],"hasPoc":false,"ai":null}