HeapArray: Avoid writing out of bounds in internal_resize #11139
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Description of Changes
The non-MSVC implementation of
DynamicHeapArray<T>::internal_resize
contains a buffer overrun when the new size is smaller than the previous size, as it just performs amemcpy(data, prev, prev_size)
without checking the size ofdata
. This PR fixes the problem by usingmin(size, prev_size)
instead ofprev_size
.Rationale behind Changes
This issue caused a crash when changing from 128MB RAM back to the default 32MB RAM in #11111 on Linux.