Fix false positive warning with FixedVector array bounds in gcc.

core/templates/fixed_vector.h

@@ -34,6 +34,8 @@
 
 #include "core/templates/span.h"
 
+GODOT_GCC_WARNING_PUSH_AND_IGNORE("-Warray-bounds")
+
 /**
  * A high performance Vector of fixed capacity.
  * Especially useful if you need to create an array on the stack, to
@@ -165,3 +167,5 @@ public:
 	_FORCE_INLINE_ constexpr const T *begin() const { return ptr(); }
 	_FORCE_INLINE_ constexpr const T *end() const { return ptr() + _size; }
 };
+
+GODOT_GCC_WARNING_POP

scene/main/multiplayer_peer.cpp

@@ -153,6 +153,7 @@ Error MultiplayerPeerExtension::get_packet(const uint8_t **r_buffer, int &r_buff
 }
 
 Error MultiplayerPeerExtension::put_packet(const uint8_t *p_buffer, int p_buffer_size) {
+	ERR_FAIL_COND_V(p_buffer_size < 0, ERR_INVALID_PARAMETER);
 	Error err;
 	if (GDVIRTUAL_CALL(_put_packet, p_buffer, p_buffer_size, err)) {
 		return err;