On Thu, Jan 5, 2012 at 1:17 AM, Ingo Molnar <mingo@xxxxxxx> wrote: > * Kees Cook <keescook@xxxxxxxxxxxx> wrote: > >> @@ -1495,6 +1496,15 @@ static struct ctl_table fs_table[] = { >> #endif >> #endif >> { >> + .procname = "protected_sticky_symlinks", >> + .data = &protected_sticky_symlinks, >> + .maxlen = sizeof(int), >> + .mode = 0644, >> + .proc_handler = proc_dointvec_minmax, >> + .extra1 = &zero, >> + .extra2 = &one, >> + }, > > Small detail: > > Might make sense to change the .mode to 0600, to make it harder > for unprivileged attack code to guess whether this protection > (and the resulting audit warning to the administrator) is > enabled on a system or not. Sure, I have no problem with that. In addition to this change, what's the best next step for this patch? Thanks, -Kees -- Kees Cook ChromeOS Security -- To unsubscribe from this list: send the line "unsubscribe linux-doc" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html