Check error buffer has sufficient capacity before access.

real-logic · Apr 11, 2022 · efa1bff · efa1bff
1 parent 32db1fb
commit efa1bff
Showing 1 changed file with 2 additions and 1 deletion.
diff --git a/agrona/src/main/java/org/agrona/concurrent/errors/ErrorLogReader.java b/agrona/src/main/java/org/agrona/concurrent/errors/ErrorLogReader.java
@@ -17,6 +17,7 @@
 
 import org.agrona.concurrent.AtomicBuffer;
 
+import static org.agrona.BitUtil.SIZE_OF_INT;
 import static org.agrona.BitUtil.align;
 import static org.agrona.concurrent.errors.DistinctErrorLog.*;
 
@@ -35,7 +36,7 @@ public class ErrorLogReader
      */
     public static boolean hasErrors(final AtomicBuffer buffer)
     {
-        return buffer.capacity() > 0 && 0 != buffer.getIntVolatile(LENGTH_OFFSET);
+        return buffer.capacity() >= SIZE_OF_INT && 0 != buffer.getIntVolatile(LENGTH_OFFSET);
     }
 
     /**