{"schema":"threatline.record/2","record":{"id":"CVE-2026-98518","aliases":[],"summary":"drm/nouveau/dmem: pin VRAM for the whole registered range","details":"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.","categories":["Operating systems"],"product":"Linux","vendor":"Linux","ecosystem":null,"affected_ranges":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-98518","source_modified_at":"2026-10-19T09:20:59.258Z","fetched_at":"2026-10-23T18:45:31.882637Z","product":"Linux","vendor":"Linux","versions":[{"version":"c3228747107705d47c7e9a03598a434a0380cb73","lessThan":"06c69c64686a31783c8bec6495dc22822d38c4ce","status":"affected","versionType":"git"},{"version":"c3228747107705d47c7e9a03598a434a0380cb73","lessThan":"64ca4cdd1031206424e6455f0ae4fb0560d8f46a","status":"affected","versionType":"git"}],"defaultStatus":"unaffected"},{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-98518","source_modified_at":"2026-10-19T09:20:59.258Z","fetched_at":"2026-10-23T18:45:31.882637Z","product":"Linux","vendor":"Linux","versions":[{"version":"6.19","status":"affected"},{"version":"0","lessThan":"6.19","status":"unaffected","versionType":"semver"},{"version":"7.2.9","lessThanOrEqual":"7.2.*","status":"unaffected","versionType":"semver"},{"version":"7.3","lessThanOrEqual":"*","status":"unaffected","versionType":"original_commit_for_fix"}],"defaultStatus":"affected"}],"fixed_versions":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-98518","source_modified_at":"2026-10-19T09:20:59.258Z","fetched_at":"2026-10-23T18:45:31.882637Z","package":{"name":"Linux","ecosystem":null},"version":"06c69c64686a31783c8bec6495dc22822d38c4ce","basis":"first unaffected version stated in the CVE record"},{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-98518","source_modified_at":"2026-10-19T09:20:59.258Z","fetched_at":"2026-10-23T18:45:31.882637Z","package":{"name":"Linux","ecosystem":null},"version":"64ca4cdd1031206424e6455f0ae4fb0560d8f46a","basis":"first unaffected version stated in the CVE record"}],"cvss":null,"severity":null,"kev":{"listed":false},"epss":{"probability":0.00189,"percentile":0.08117,"score_date":"2026-10-23"},"published_at":"2026-10-18T15:17:36.371Z","modified_at":"2026-10-19T09:20:59.258Z","provenance":[{"source":"CVE List","url":"https://www.cve.org/CVERecord?id=CVE-2026-98518","fetched_at":"2026-10-23T18:45:31.882637Z","source_modified_at":"2026-10-19T09:20:59.258Z"},{"source":"EPSS","url":"https://api.first.org/data/v1/epss?cve=CVE-2026-98518","fetched_at":"2026-10-23T18:42:43.628194Z","source_modified_at":"2026-10-23"}],"sources":["CVE List","EPSS"],"references":[{"source":"CVE List","url":"https://git.kernel.org/stable/c/06c69c64686a31783c8bec6495dc22822d38c4ce"},{"source":"CVE List","url":"https://git.kernel.org/stable/c/64ca4cdd1031206424e6455f0ae4fb0560d8f46a"}],"locations":[],"motoko_assessment":{"status":"requires_architecture_review","automatic_remediation":false},"cve_state":"PUBLISHED","classification":{"method":"product-first software-layer rules","rules_version":"2.1","matched_on":"product","confidence":"heuristic","reviewed":false},"change_timestamp":"2026-10-19T09:20:59.258Z","content_hash":"b8e9b6f8ad42b161fafd262d81a03465d23c91d19dc8df05b34f399f18304d82"}}