fixed byPtr match search

diff --git a/lib/lz4.c b/lib/lz4.c
index 8d8c1e8..5791556 100644 (file)
--- a/lib/lz4.c
+++ b/lib/lz4.c
@@ -694,7 +694,8 @@ LZ4_FORCE_INLINE int LZ4_compress_generic(
                 forwardH = LZ4_hashPosition(forwardIp, tableType);
                 LZ4_putPositionOnHash(ip, h, cctx->hashTable, tableType, base);
 
-            } while ( LZ4_read32(match) != LZ4_read32(ip) );
+            } while ( (match+MAX_DISTANCE < ip)
+                   || (LZ4_read32(match) != LZ4_read32(ip)) );
 
         } else {   /* byU32, byU16 */