Fix integer overflow vulnerability in AbstractIoBuffer.write()

[yannaingtun]

Summary:

The current implementation lacks proper bounds checking in the write(byte[], int, int) method.
Specifically, it does not guard against integer overflow when calculating offset + length, which may result in out-of-bounds memory access and potential data corruption.

Fix:

Added validation to ensure offset and length are within safe bounds, following secure coding practices found in other hardened buffer implementations.
This prevents integer overflow and enforces correct array indexing.

Security Reference:

CWE-190: Integer Overflow or Wraparound