BUG/MEDIUM: lua: protects the upper boundary of the argument list for converters/fetches.
When a converter or sample is called from within a Lua code, there is a risk
of invalid argument string data usage when the upper boundary is reached.
Would be kind to port to 1.6 if possible.
diff --git a/src/hlua.c b/src/hlua.c
index 4132ace..221a781 100644
--- a/src/hlua.c
+++ b/src/hlua.c
@@ -2954,6 +2954,7 @@
hlua_lua2arg(L, i + 2, &args[i]);
}
args[i].type = ARGT_STOP;
+ args[i].data.str.str = NULL;
/* Check arguments. */
MAY_LJMP(hlua_lua2arg_check(L, 2, args, f->arg_mask, hsmp->p));
@@ -3059,6 +3060,7 @@
hlua_lua2arg(L, i + 3, &args[i]);
}
args[i].type = ARGT_STOP;
+ args[i].data.str.str = NULL;
/* Check arguments. */
MAY_LJMP(hlua_lua2arg_check(L, 3, args, conv->arg_mask, hsmp->p));