{"schema":"threatline.record/2","record":{"id":"CVE-2026-98282","aliases":[],"summary":"powerpc/iommu: Fix the overflow validation in iommu_tce_check_ioba","details":"In the Linux kernel, the following vulnerability has been resolved:\n\npowerpc/iommu: Fix the overflow validation in iommu_tce_check_ioba\n\nThe commit b1af23d836f8 (\"KVM: PPC: iommu: Unify TCE checking\") unified\nIOBA parameter checking across KVM and VFIO into iommu_tce_check_ioba().\nWhile doing so, the passed in argument npages is ignored and constant\nvalue '1' is used leaving out a possible overflow as the callers can\nlegitimately be using npages > 1 for H_STUFF_TCE or H_PUT_TCE_INDIRECT\ncases.\n\nFix this by accounting for 'npages', checking for arithmetic overflow,\nand verifying that the entire requested range (ioba - offset + npages)\ndoes not exceed the table capacity 'size'.","categories":["Operating systems"],"product":"Linux","vendor":"Linux","ecosystem":null,"affected_ranges":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-98282","source_modified_at":"2026-10-19T09:16:53.780Z","fetched_at":"2026-10-23T18:45:31.882637Z","product":"Linux","vendor":"Linux","versions":[{"version":"b1af23d836f811137d504d14d4cbdd01929dec34","lessThan":"98d8dcc4ebd10523507d4478e148809a7771a213","status":"affected","versionType":"git"},{"version":"b1af23d836f811137d504d14d4cbdd01929dec34","lessThan":"9fd9c9bbb05417f468a11fb6d145d7ff61f4a868","status":"affected","versionType":"git"},{"version":"b1af23d836f811137d504d14d4cbdd01929dec34","lessThan":"3776bf56e06980e8a12c8c0565d9e6ac44965f03","status":"affected","versionType":"git"},{"version":"b1af23d836f811137d504d14d4cbdd01929dec34","lessThan":"d6a1779129d936bc1fbab80181165da544eab736","status":"affected","versionType":"git"},{"version":"b1af23d836f811137d504d14d4cbdd01929dec34","lessThan":"d48ceb6e1a6915c7bac4f902554a1047365cdff2","status":"affected","versionType":"git"},{"version":"b1af23d836f811137d504d14d4cbdd01929dec34","lessThan":"0543813753ef5cfbd6fa96694f7acf783fa01af7","status":"affected","versionType":"git"},{"version":"b1af23d836f811137d504d14d4cbdd01929dec34","lessThan":"314091243159f8e3749bc719bb129f423f72fd86","status":"affected","versionType":"git"},{"version":"b1af23d836f811137d504d14d4cbdd01929dec34","lessThan":"0b271f7d7f5ed45bc498a03ce0aa9cfd8402fc71","status":"affected","versionType":"git"}],"defaultStatus":"unaffected"},{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-98282","source_modified_at":"2026-10-19T09:16:53.780Z","fetched_at":"2026-10-23T18:45:31.882637Z","product":"Linux","vendor":"Linux","versions":[{"version":"4.12","status":"affected"},{"version":"0","lessThan":"4.12","status":"unaffected","versionType":"semver"},{"version":"5.10.271","lessThanOrEqual":"5.10.*","status":"unaffected","versionType":"semver"},{"version":"5.15.222","lessThanOrEqual":"5.15.*","status":"unaffected","versionType":"semver"},{"version":"6.1.189","lessThanOrEqual":"6.1.*","status":"unaffected","versionType":"semver"},{"version":"6.6.158","lessThanOrEqual":"6.6.*","status":"unaffected","versionType":"semver"},{"version":"6.12.112","lessThanOrEqual":"6.12.*","status":"unaffected","versionType":"semver"},{"version":"6.18.54","lessThanOrEqual":"6.18.*","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-2026-98282","source_modified_at":"2026-10-19T09:16:53.780Z","fetched_at":"2026-10-23T18:45:31.882637Z","package":{"name":"Linux","ecosystem":null},"version":"98d8dcc4ebd10523507d4478e148809a7771a213","basis":"first unaffected version stated in the CVE record"},{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-98282","source_modified_at":"2026-10-19T09:16:53.780Z","fetched_at":"2026-10-23T18:45:31.882637Z","package":{"name":"Linux","ecosystem":null},"version":"9fd9c9bbb05417f468a11fb6d145d7ff61f4a868","basis":"first unaffected version stated in the CVE record"},{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-98282","source_modified_at":"2026-10-19T09:16:53.780Z","fetched_at":"2026-10-23T18:45:31.882637Z","package":{"name":"Linux","ecosystem":null},"version":"3776bf56e06980e8a12c8c0565d9e6ac44965f03","basis":"first unaffected version stated in the CVE record"},{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-98282","source_modified_at":"2026-10-19T09:16:53.780Z","fetched_at":"2026-10-23T18:45:31.882637Z","package":{"name":"Linux","ecosystem":null},"version":"0543813753ef5cfbd6fa96694f7acf783fa01af7","basis":"first unaffected version stated in the CVE record"},{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-98282","source_modified_at":"2026-10-19T09:16:53.780Z","fetched_at":"2026-10-23T18:45:31.882637Z","package":{"name":"Linux","ecosystem":null},"version":"314091243159f8e3749bc719bb129f423f72fd86","basis":"first unaffected version stated in the CVE record"},{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-98282","source_modified_at":"2026-10-19T09:16:53.780Z","fetched_at":"2026-10-23T18:45:31.882637Z","package":{"name":"Linux","ecosystem":null},"version":"0b271f7d7f5ed45bc498a03ce0aa9cfd8402fc71","basis":"first unaffected version stated in the CVE record"}],"cvss":8.8,"severity":"High","kev":{"listed":false},"epss":{"probability":0.00138,"percentile":0.02939,"score_date":"2026-10-23"},"published_at":"2026-10-06T08:45:43.775Z","modified_at":"2026-10-19T09:16:53.780Z","provenance":[{"source":"CVE List","url":"https://www.cve.org/CVERecord?id=CVE-2026-98282","fetched_at":"2026-10-23T18:45:31.882637Z","source_modified_at":"2026-10-19T09:16:53.780Z"},{"source":"EPSS","url":"https://api.first.org/data/v1/epss?cve=CVE-2026-98282","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/98d8dcc4ebd10523507d4478e148809a7771a213"},{"source":"CVE List","url":"https://git.kernel.org/stable/c/9fd9c9bbb05417f468a11fb6d145d7ff61f4a868"},{"source":"CVE List","url":"https://git.kernel.org/stable/c/3776bf56e06980e8a12c8c0565d9e6ac44965f03"},{"source":"CVE List","url":"https://git.kernel.org/stable/c/d6a1779129d936bc1fbab80181165da544eab736"},{"source":"CVE List","url":"https://git.kernel.org/stable/c/d48ceb6e1a6915c7bac4f902554a1047365cdff2"},{"source":"CVE List","url":"https://git.kernel.org/stable/c/0543813753ef5cfbd6fa96694f7acf783fa01af7"},{"source":"CVE List","url":"https://git.kernel.org/stable/c/314091243159f8e3749bc719bb129f423f72fd86"},{"source":"CVE List","url":"https://git.kernel.org/stable/c/0b271f7d7f5ed45bc498a03ce0aa9cfd8402fc71"}],"locations":[],"motoko_assessment":{"status":"requires_architecture_review","automatic_remediation":false},"cve_state":"PUBLISHED","cvss_source":"CVE List","classification":{"method":"product-first software-layer rules","rules_version":"2.1","matched_on":"product","confidence":"heuristic","reviewed":false},"change_timestamp":"2026-10-19T09:16:53.780Z","content_hash":"59c209cd89a568e48c0006e1c50d39fd1b706276247af0d62c7b056db4b14c7d"}}