#7 unhide-linux.c:108]: (error) Resource leak: fd

[dcb]

Source code is

if((fscanf(fd, "%d", &tmppid) != 1) || tmppid < 1)
{
msgln(unlog, 0, "Warning : Cannot get current maximum PID, error parsing %s format. Using default value %d", path, * newmaxpid) ;
return;
}

Suggest add missing call to fclose.