{"api_version":"1","generated_at":"2026-10-29T22:44:17+00:00","cve":"CVE-2026-98481","urls":{"html":"https://cve.report/CVE-2026-98481","api":"https://cve.report/api/cve/CVE-2026-98481.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-98481","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-98481"},"summary":{"title":"nfc: port100: reject frames whose declared length exceeds the received data","description":"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.","state":"PUBLISHED","assigner":"Linux","published_at":"2026-10-18 16:16:58","updated_at":"2026-10-19 10:18:59"},"problem_types":[],"metrics":[],"references":[{"url":"https://git.kernel.org/stable/c/144ad477c381e2c592b64898d04ab4ce03b32861","name":"https://git.kernel.org/stable/c/144ad477c381e2c592b64898d04ab4ce03b32861","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/14b1467cfc6630583650f33538174c5a1ec685ab","name":"https://git.kernel.org/stable/c/14b1467cfc6630583650f33538174c5a1ec685ab","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/0d482995f0cdd0302450aa300c684c642d8ab31f","name":"https://git.kernel.org/stable/c/0d482995f0cdd0302450aa300c684c642d8ab31f","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/e4da1452e10c6472a4bac48dc2f6a35fff1fcd69","name":"https://git.kernel.org/stable/c/e4da1452e10c6472a4bac48dc2f6a35fff1fcd69","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/092c6a605cbd6414ef499834c2e0da69c2c3388e","name":"https://git.kernel.org/stable/c/092c6a605cbd6414ef499834c2e0da69c2c3388e","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/db66a30588630c7de30ef033f00daddef69f6ad9","name":"https://git.kernel.org/stable/c/db66a30588630c7de30ef033f00daddef69f6ad9","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/035056e07ea65be670284246d9bc62f2f00ff4a3","name":"https://git.kernel.org/stable/c/035056e07ea65be670284246d9bc62f2f00ff4a3","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/9e8df087826b9999d1b83b06f5d85675d5a69c9e","name":"https://git.kernel.org/stable/c/9e8df087826b9999d1b83b06f5d85675d5a69c9e","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-98481","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-98481","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 562d4d59b8a1d5f3ca75115d6ac10c7b7bc68c06 0d482995f0cdd0302450aa300c684c642d8ab31f git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 562d4d59b8a1d5f3ca75115d6ac10c7b7bc68c06 9e8df087826b9999d1b83b06f5d85675d5a69c9e git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 562d4d59b8a1d5f3ca75115d6ac10c7b7bc68c06 db66a30588630c7de30ef033f00daddef69f6ad9 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 562d4d59b8a1d5f3ca75115d6ac10c7b7bc68c06 144ad477c381e2c592b64898d04ab4ce03b32861 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 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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."}],"providerMetadata":{"dateUpdated":"2026-10-19T09:20:18.735Z","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux"},"references":[{"url":"https://git.kernel.org/stable/c/0d482995f0cdd0302450aa300c684c642d8ab31f"},{"url":"https://git.kernel.org/stable/c/9e8df087826b9999d1b83b06f5d85675d5a69c9e"},{"url":"https://git.kernel.org/stable/c/db66a30588630c7de30ef033f00daddef69f6ad9"},{"url":"https://git.kernel.org/stable/c/144ad477c381e2c592b64898d04ab4ce03b32861"},{"url":"https://git.kernel.org/stable/c/e4da1452e10c6472a4bac48dc2f6a35fff1fcd69"},{"url":"https://git.kernel.org/stable/c/14b1467cfc6630583650f33538174c5a1ec685ab"},{"url":"https://git.kernel.org/stable/c/035056e07ea65be670284246d9bc62f2f00ff4a3"},{"url":"https://git.kernel.org/stable/c/092c6a605cbd6414ef499834c2e0da69c2c3388e"}],"title":"nfc: port100: reject frames whose declared length exceeds the received data","x_generator":{"engine":"bippy-1.2.0"}}},"cveMetadata":{"assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","assignerShortName":"Linux","cveId":"CVE-2026-98481","datePublished":"2026-10-18T15:15:55.360Z","dateReserved":"2026-09-25T10:25:14.352Z","dateUpdated":"2026-10-19T09:20:18.735Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-10-18 16:16:58","lastModifiedDate":"2026-10-19 10:18:59","problem_types":[],"metrics":[],"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"98481","Ordinal":"1","Title":"nfc: port100: reject frames whose declared length exceeds the re","CVE":"CVE-2026-98481","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"98481","Ordinal":"1","NoteData":"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.","Type":"Description","Title":"nfc: port100: reject frames whose declared length exceeds the re"}]}}}