Fix wildcopy overwriting data still in window

2017-02-15 16:43:45 -08:00
parent 2252d29a5a
commit 887eaa9e21
4 changed files with 27 additions and 3 deletions
@@ -2260,7 +2260,7 @@ size_t ZSTD_decompressStream(ZSTD_DStream* zds, ZSTD_outBuffer* output, ZSTD_inB

            /* Adapt buffer sizes to frame header instructions */
            {   size_t const blockSize = MIN(zds->fParams.windowSize, ZSTD_BLOCKSIZE_ABSOLUTEMAX);
-                size_t const neededOutSize = zds->fParams.windowSize + blockSize;
+                size_t const neededOutSize = zds->fParams.windowSize + blockSize + WILDCOPY_OVERLENGTH;
                zds->blockSize = blockSize;
                if (zds->inBuffSize < blockSize) {
                    ZSTD_free(zds->inBuff, zds->customMem);