{"schema":"threatline.record/2","record":{"id":"CVE-2026-98481","aliases":[],"summary":"nfc: port100: reject frames whose declared length exceeds the received data","details":"In the Linux kernel, the following vulnerability has been resolved:\n\nnfc: port100: reject frames whose declared length exceeds the received data\n\nport100_recv_response() passes the URB transfer buffer to\nport100_rx_frame_is_valid(), which checksums le16_to_cpu(frame->datalen)\nbytes of frame->data. datalen is a 16-bit field supplied by the device\nand is never checked against the number of bytes actually received\n(urb->actual_length), so a device reporting a datalen larger than the\nreceived frame makes port100_data_checksum() read out of bounds past the\ntransfer buffer.\n\nReject a response whose declared frame size does not fit the received\nlength before validating it.\n\nFound by 0sec (https://0sec.ai) using automated source analysis; the\nmissing bound is evident from source. Compile-tested.","categories":["Operating systems"],"product":"Linux","vendor":"Linux","ecosystem":null,"affected_ranges":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-98481","source_modified_at":"2026-10-19T09:20:18.735Z","fetched_at":"2026-10-23T18:45:31.882637Z","product":"Linux","vendor":"Linux","versions":[{"version":"562d4d59b8a1d5f3ca75115d6ac10c7b7bc68c06","lessThan":"0d482995f0cdd0302450aa300c684c642d8ab31f","status":"affected","versionType":"git"},{"version":"562d4d59b8a1d5f3ca75115d6ac10c7b7bc68c06","lessThan":"9e8df087826b9999d1b83b06f5d85675d5a69c9e","status":"affected","versionType":"git"},{"version":"562d4d59b8a1d5f3ca75115d6ac10c7b7bc68c06","lessThan":"db66a30588630c7de30ef033f00daddef69f6ad9","status":"affected","versionType":"git"},{"version":"562d4d59b8a1d5f3ca75115d6ac10c7b7bc68c06","lessThan":"144ad477c381e2c592b64898d04ab4ce03b32861","status":"affected","versionType":"git"},{"version":"562d4d59b8a1d5f3ca75115d6ac10c7b7bc68c06","lessThan":"e4da1452e10c6472a4bac48dc2f6a35fff1fcd69","status":"affected","versionType":"git"},{"version":"562d4d59b8a1d5f3ca75115d6ac10c7b7bc68c06","lessThan":"14b1467cfc6630583650f33538174c5a1ec685ab","status":"affected","versionType":"git"},{"version":"562d4d59b8a1d5f3ca75115d6ac10c7b7bc68c06","lessThan":"035056e07ea65be670284246d9bc62f2f00ff4a3","status":"affected","versionType":"git"},{"version":"562d4d59b8a1d5f3ca75115d6ac10c7b7bc68c06","lessThan":"092c6a605cbd6414ef499834c2e0da69c2c3388e","status":"affected","versionType":"git"}],"defaultStatus":"unaffected"},{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-98481","source_modified_at":"2026-10-19T09:20:18.735Z","fetched_at":"2026-10-23T18:45:31.882637Z","product":"Linux","vendor":"Linux","versions":[{"version":"3.13","status":"affected"},{"version":"0","lessThan":"3.13","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":"6.18.55","lessThanOrEqual":"6.18.*","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-2026-98481","source_modified_at":"2026-10-19T09:20:18.735Z","fetched_at":"2026-10-23T18:45:31.882637Z","package":{"name":"Linux","ecosystem":null},"version":"0d482995f0cdd0302450aa300c684c642d8ab31f","basis":"first unaffected version stated in the CVE record"},{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-98481","source_modified_at":"2026-10-19T09:20:18.735Z","fetched_at":"2026-10-23T18:45:31.882637Z","package":{"name":"Linux","ecosystem":null},"version":"9e8df087826b9999d1b83b06f5d85675d5a69c9e","basis":"first unaffected version stated in the CVE record"},{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-98481","source_modified_at":"2026-10-19T09:20:18.735Z","fetched_at":"2026-10-23T18:45:31.882637Z","package":{"name":"Linux","ecosystem":null},"version":"144ad477c381e2c592b64898d04ab4ce03b32861","basis":"first unaffected version stated in the CVE record"},{"source":"CVE 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record"}],"cvss":null,"severity":null,"kev":{"listed":false},"epss":{"probability":0.0021,"percentile":0.10705,"score_date":"2026-10-23"},"published_at":"2026-10-18T15:15:55.360Z","modified_at":"2026-10-19T09:20:18.735Z","provenance":[{"source":"CVE List","url":"https://www.cve.org/CVERecord?id=CVE-2026-98481","fetched_at":"2026-10-23T18:45:31.882637Z","source_modified_at":"2026-10-19T09:20:18.735Z"},{"source":"EPSS","url":"https://api.first.org/data/v1/epss?cve=CVE-2026-98481","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/0d482995f0cdd0302450aa300c684c642d8ab31f"},{"source":"CVE List","url":"https://git.kernel.org/stable/c/9e8df087826b9999d1b83b06f5d85675d5a69c9e"},{"source":"CVE List","url":"https://git.kernel.org/stable/c/db66a30588630c7de30ef033f00daddef69f6ad9"},{"source":"CVE List","url":"https://git.kernel.org/stable/c/144ad477c381e2c592b64898d04ab4ce03b32861"},{"source":"CVE List","url":"https://git.kernel.org/stable/c/e4da1452e10c6472a4bac48dc2f6a35fff1fcd69"},{"source":"CVE List","url":"https://git.kernel.org/stable/c/14b1467cfc6630583650f33538174c5a1ec685ab"},{"source":"CVE List","url":"https://git.kernel.org/stable/c/035056e07ea65be670284246d9bc62f2f00ff4a3"},{"source":"CVE List","url":"https://git.kernel.org/stable/c/092c6a605cbd6414ef499834c2e0da69c2c3388e"}],"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":"2026-10-19T09:20:18.735Z","content_hash":"1d1f72ba449bbcdc9b1050c0578449ca5cdd78b587990e4e4f4960fe0f9cc451"}}