CVE-2026-98481
In the Linux kernel, the following vulnerability has been resolved: nfc: port100: reject frames whose declared length exceeds the received data port100_recv_response() passes the URB transfer buffer to port100_rx_frame_is_valid(), which checksums le16_to_cpu(frame->datalen) bytes of frame->data. datalen is a 16-bit field supplied by the device and is never checked against the number of bytes actually received (urb->actual_length), so a device reporting a datalen larger than the received frame makes port100_data_checksum() read out of bounds past the transfer buffer. Reject a response whose declared frame size does not fit the received length before validating it. Found by 0sec (https://0sec.ai) using automated source analysis; the missing bound is evident from source. Compile-tested.
- EPSS
- 0.2% chance of exploitation in the next 30 days; higher than 11% of CVEs (scores of 2026-10-25)
- Published
- Modified
- Record from
- the NVD, synced
References
- https://git.kernel.org/stable/c/035056e07ea65be670284246d9bc62f2f00ff4a3
- https://git.kernel.org/stable/c/092c6a605cbd6414ef499834c2e0da69c2c3388e
- https://git.kernel.org/stable/c/0d482995f0cdd0302450aa300c684c642d8ab31f
- https://git.kernel.org/stable/c/144ad477c381e2c592b64898d04ab4ce03b32861
- https://git.kernel.org/stable/c/14b1467cfc6630583650f33538174c5a1ec685ab