iLBC: Handle a case of bad input data

webrtc/modules/audio_coding/codecs/ilbc/cb_construct.c

Index: webrtc/modules/audio_coding/codecs/ilbc/cb_construct.c
diff --git a/webrtc/modules/audio_coding/codecs/ilbc/cb_construct.c b/webrtc/modules/audio_coding/codecs/ilbc/cb_construct.c
index cacf3ace2895afe0cc7f6d5379d2f9d5cc90bd95..4c72a6e72f6ea03e7ee29c6f2e61ca86fbb9a3aa 100644
--- a/webrtc/modules/audio_coding/codecs/ilbc/cb_construct.c
+++ b/webrtc/modules/audio_coding/codecs/ilbc/cb_construct.c
@@ -16,6 +16,8 @@
 
 ******************************************************************/
 
+#include "cb_construct.h"
+
 #include "defines.h"
 #include "gain_dequant.h"
 #include "get_cd_vec.h"
@@ -24,7 +26,7 @@
  *  Construct decoded vector from codebook and gains.
  *---------------------------------------------------------------*/
 
-void WebRtcIlbcfix_CbConstruct(
+bool WebRtcIlbcfix_CbConstruct(
     int16_t *decvector,  /* (o) Decoded vector */
     int16_t *index,   /* (i) Codebook indices */
     int16_t *gain_index,  /* (i) Gain quantization indices */
@@ -50,9 +52,12 @@ void WebRtcIlbcfix_CbConstruct(
   /* codebook vector construction and construction of total vector */
 
   /* Stack based */
-  WebRtcIlbcfix_GetCbVec(cbvec0, mem, (size_t)index[0], lMem, veclen);
-  WebRtcIlbcfix_GetCbVec(cbvec1, mem, (size_t)index[1], lMem, veclen);
-  WebRtcIlbcfix_GetCbVec(cbvec2, mem, (size_t)index[2], lMem, veclen);
+  if (!WebRtcIlbcfix_GetCbVec(cbvec0, mem, (size_t)index[0], lMem, veclen))
+    return false;  // Failure.
+  if (!WebRtcIlbcfix_GetCbVec(cbvec1, mem, (size_t)index[1], lMem, veclen))
+    return false;  // Failure.
+  if (!WebRtcIlbcfix_GetCbVec(cbvec2, mem, (size_t)index[2], lMem, veclen))
+    return false;  // Failure.
 
   gainPtr = &gain[0];
   for (j=0;j<veclen;j++) {
@@ -63,5 +68,5 @@ void WebRtcIlbcfix_CbConstruct(
     decvector[j] = (int16_t)((a32 + 8192) >> 14);
   }
 
-  return;
+  return true;  // Success.
 }