decompressors: fix leak in lzma error case

Ticket: 7766

Author: catenacyber

htp/htp_decompressors.c

@@ -350,6 +350,9 @@ htp_status_t htp_gzip_decompressor_decompress(htp_decompressor_t *drec1, htp_tx_
                 // There is data even if there is an error
                 // So use this data and log a warning
                 htp_log(d->tx->connp, HTP_LOG_MARK, HTP_LOG_WARNING, 0, "GZip decompressor: inflate failed with %d", rc);
+                if (drec->zlib_initialized == HTP_COMPRESSION_LZMA) {
+                    LzmaDec_Free(&drec->state, &lzma_Alloc);
+                }
                 drec->zlib_initialized = HTP_COMPRESSION_OVER;
                 return HTP_ERROR;
             }