|Message: Memory corruption when dealing with electromagnetic fields||Not Logged In (login)|
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It seems some function expect GetFieldValue to only write 3 doubles to the caller-provided pointer. Indeed some, for example user-defined electro-magnetic field classes write 6. This leads to memory corruption.
Attached is a patch which extends the caller provided arrays to be at least 6 entries long.
In general, the handling of that calling interface seems fishy. I haven't looked into this too carefully, but it seems that some classes only write 3 doubles. Which means the other 3 might be random, if the caller does not set them to zero.