size_t const flushSize = LZ4F_flush(cctxPtr, dstBuffer, dstCapacity, compressOptionsPtr);
if (LZ4F_isError(flushSize)) return flushSize;
- assert(flushSize <= dstCapacity);
dstPtr += flushSize;
+ assert(flushSize <= dstCapacity);
+ dstCapacity -= flushSize;
+
+ if (dstCapacity < 4) return err0r(LZ4F_ERROR_dstMaxSize_tooSmall);
LZ4F_writeLE32(dstPtr, 0);
dstPtr += 4; /* endMark */
if (cctxPtr->prefs.frameInfo.contentChecksumFlag == LZ4F_contentChecksumEnabled) {
U32 const xxh = XXH32_digest(&(cctxPtr->xxh));
+ if (dstCapacity < 8) return err0r(LZ4F_ERROR_dstMaxSize_tooSmall);
LZ4F_writeLE32(dstPtr, xxh);
dstPtr+=4; /* content Checksum */
}