{"id":"CVE-2026-98481","published":"2026-10-18T16:16:58.697","lastModified":"2026-10-19T10:18:59.333","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.","cvssScore":null,"cvssSeverity":null,"cvssVector":null,"cwes":[],"vendors":[],"products":[],"references":[{"url":"https://git.kernel.org/stable/c/035056e07ea65be670284246d9bc62f2f00ff4a3","tags":[]},{"url":"https://git.kernel.org/stable/c/092c6a605cbd6414ef499834c2e0da69c2c3388e","tags":[]},{"url":"https://git.kernel.org/stable/c/0d482995f0cdd0302450aa300c684c642d8ab31f","tags":[]},{"url":"https://git.kernel.org/stable/c/144ad477c381e2c592b64898d04ab4ce03b32861","tags":[]},{"url":"https://git.kernel.org/stable/c/14b1467cfc6630583650f33538174c5a1ec685ab","tags":[]},{"url":"https://git.kernel.org/stable/c/9e8df087826b9999d1b83b06f5d85675d5a69c9e","tags":[]},{"url":"https://git.kernel.org/stable/c/db66a30588630c7de30ef033f00daddef69f6ad9","tags":[]},{"url":"https://git.kernel.org/stable/c/e4da1452e10c6472a4bac48dc2f6a35fff1fcd69","tags":[]}],"exploitRefs":[],"hasPoc":false,"ai":null}