Number of elements passed instead of buffer length CS-W1051
Bug risk
Critical
Autofix Buffer.BlockCopy()'s last argument specifies the number of bytes to copy rather than the number of elements in the source buffer. Specifying incorrect buffer length may result in partial copying and or data loss.
Bad Practice
Buffer.BlockCopy(src, 0, dst, 0, src.Length);
Recommended
Buffer.BlockCopy(src, 0, dst, 0, Buffer.ByteLength(src));