{"schema":"threatline.record/2","record":{"id":"CVE-2026-98178","aliases":[],"summary":"drm/amdgpu: Skip KFD mapping clear before initialization","details":"In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/amdgpu: Skip KFD mapping clear before initialization\n\namdgpu_amdkfd_clear_kfd_mapping() assumes that a non-NULL kfd_dev\nhas a fully populated node array. This is not true when KFD device\ninitialization fails after probe.\n\nFor example, kgd2kfd_device_init() sets num_nodes before checking\nPCIe atomics support. On Polaris systems without the required atomics,\nit returns before allocating nodes[0], but the kfd_dev remains attached\nto the amdgpu device. A later GPU reset then dereferences nodes[0]->id.\n\nRequire the authoritative KFD initialization flag before walking the\nnode array, matching the existing KFD reset and teardown paths.\n\n(cherry picked from commit 4ac1835823c47903fbb278bbf474773c46f59edc)","categories":["Operating systems"],"product":"Linux","vendor":"Linux","ecosystem":null,"affected_ranges":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-98178","source_modified_at":"2026-10-19T09:15:09.614Z","fetched_at":"2026-10-23T18:45:31.882637Z","product":"Linux","vendor":"Linux","versions":[{"version":"70cadefcc6160c575b04f763ada34c20e868d577","lessThan":"157d3f1db7e7e6f320daa221fae84a4c13555b6f","status":"affected","versionType":"git"},{"version":"70cadefcc6160c575b04f763ada34c20e868d577","lessThan":"7f9caa70aef0950e06d395ca0035831214d88187","status":"affected","versionType":"git"}],"defaultStatus":"unaffected"},{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-98178","source_modified_at":"2026-10-19T09:15:09.614Z","fetched_at":"2026-10-23T18:45:31.882637Z","product":"Linux","vendor":"Linux","versions":[{"version":"7.2","status":"affected"},{"version":"0","lessThan":"7.2","status":"unaffected","versionType":"semver"},{"version":"7.2.8","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-2026-98178","source_modified_at":"2026-10-19T09:15:09.614Z","fetched_at":"2026-10-23T18:45:31.882637Z","package":{"name":"Linux","ecosystem":null},"version":"157d3f1db7e7e6f320daa221fae84a4c13555b6f","basis":"first unaffected version stated in the CVE record"},{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-98178","source_modified_at":"2026-10-19T09:15:09.614Z","fetched_at":"2026-10-23T18:45:31.882637Z","package":{"name":"Linux","ecosystem":null},"version":"7f9caa70aef0950e06d395ca0035831214d88187","basis":"first unaffected version stated in the CVE record"}],"cvss":null,"severity":null,"kev":{"listed":false},"epss":{"probability":0.00155,"percentile":0.04321,"score_date":"2026-10-23"},"published_at":"2026-10-06T08:44:21.602Z","modified_at":"2026-10-19T09:15:09.614Z","provenance":[{"source":"CVE List","url":"https://www.cve.org/CVERecord?id=CVE-2026-98178","fetched_at":"2026-10-23T18:45:31.882637Z","source_modified_at":"2026-10-19T09:15:09.614Z"},{"source":"EPSS","url":"https://api.first.org/data/v1/epss?cve=CVE-2026-98178","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/157d3f1db7e7e6f320daa221fae84a4c13555b6f"},{"source":"CVE List","url":"https://git.kernel.org/stable/c/7f9caa70aef0950e06d395ca0035831214d88187"}],"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":"2026-10-19T09:15:09.614Z","content_hash":"77e18109a356cc03177240894136f351fb4dec8d6df0b3081e2772e900e89f19"}}