Quoting Samuel Thibault (2016-03-15 17:31:53) > Justus Winter, on Tue 15 Mar 2016 14:39:00 +0100, wrote: > > Quoting Agustina Arzille (2016-03-15 14:11:27) > > > Hello, everyone. > > > > > > I was browsing some gnumach source files, and noticed some dangerous use > > > of the gcc builtin 'alloca'. In the file kern/bootstrap.c, lines 212 and > > > 228, we have the following statement: > > > > > > memcpy (alloca (len), ...) > > > > Good catch. However, alloca is dangerous even if used correctly, and > > is best be avoided. > > What do you mean by "dangerous"? I don't think we'll ever get a command > line that does not fit into the stack.
I don't see why not actually, unless grub limits this somehow O:-) Justus
