Dne 22. 01. 21 v 9:21 Hui Wang napsal(a): > + len = scnprintf(buf, 256, "0x%04x", mask_bits); Use sizeof(buf) on all appropriate places. Also never use user space 'count' variable for the stack buffer size. Jaroslav -- Jaroslav Kysela <perex@xxxxxxxx> Linux Sound Maintainer; ALSA Project; Red Hat, Inc.