BUG-000122766 for ArcGIS for Desktop

漏洞 ID 编号	BUG-000122766
已提交	May 31, 2019
上次修改时间	June 5, 2024
适用范围	ArcGIS for Desktop
找到的版本	10.2.1
状态	Will Not Be Addressed

附加信息

The users code has a flaw in it, when exactly one geometry is returned (for example, no union). They are using a geometry from a recycling cursor after the cursor has been freed. The geometry’s memory is free, and in their code, some of the free memory is used in a way that causes the geometry’s spatial indexed to exhaust memory. In other cases, the freed memory is not manipulated in a way that causes the spatial index to react as it does in this case. This gives the distinctive “only in this application” behavior (although other memory configurations could yield other bad results).

解决办法

The solution is to either use a non-recycling cursor, call get_ShapeCopy, or clone the shape in the case that they never union geometries. The non-recycling cursors causes the application to overall use more memory, same with get_shapeCopy. However the third option has the least impact to their existing code. To clone the shape in the case they detect that the union is not required, avoids the flaw in the coding pattern.