Fixed potential buffer overflow in ProcessRadioRxDone

Lora-net · Oct 4, 2022 · e851b07 · e851b07
1 parent a166830
commit e851b07
Showing 1 changed file with 8 additions and 0 deletions.
diff --git a/src/mac/LoRaMac.c b/src/mac/LoRaMac.c
@@ -938,6 +938,14 @@ static void ProcessRadioRxDone( void )
         }
     }
 
+    // Abort on empty radio frames
+    if( size == 0 )
+    {
+        MacCtx.McpsIndication.Status = LORAMAC_EVENT_INFO_STATUS_ERROR;
+        PrepareRxDoneAbort( );
+        return;
+    }
+
     macHdr.Value = payload[pktHeaderLen++];
 
     // Accept frames of LoRaWAN Major Version 1 only