fixed roll buffer greedy mode

2015-11-22 03:01:33 +01:00
parent 9a24e5986b
commit 734aa92ed5
1 changed files with 1 additions and 0 deletions
@@ -1497,6 +1497,7 @@ size_t ZSTD_compressBlock_lazy_extDict_generic(ZSTD_CCtx* ctx,
            const U32 repIndex = (U32)(current+1 - offset_1);
            const BYTE* const repBase = repIndex < dictLimit ? dictBase : base;
            const BYTE* const repMatch = repBase + repIndex;
+            if ((repIndex <= dictLimit-4) || (repIndex >= dictLimit))
            if (MEM_read32(ip+1) == MEM_read32(repMatch))            
            {
                /* repcode detected we should take it */