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…write RtlInitUnicodeString: cap MaximumLength to avoid USHORT overflow when Length == UNICODE_STRING_MAX_BYTES (65534 + 2 = 65536 wraps to 0). RtlAppendUnicodeToString, RtlAppendUnicodeStringToString: change null-terminator guard from (Length < MaximumLength) to (Length + sizeof(WCHAR) <= MaximumLength) to ensure a full WCHAR fits before writing, preventing out-of-bounds write. Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
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…write
RtlInitUnicodeString: cap MaximumLength to avoid USHORT overflow when Length == UNICODE_STRING_MAX_BYTES (65534 + 2 = 65536 wraps to 0).
RtlAppendUnicodeToString, RtlAppendUnicodeStringToString: change null-terminator guard from (Length < MaximumLength) to (Length + sizeof(WCHAR) <= MaximumLength) to ensure a full WCHAR fits before writing, preventing out-of-bounds write.