Dereference after null check

Author: chenhu-wang

src/plugins/intel_cpu/src/nodes/kernels/scaled_attn/softmax_kernel.hpp

@@ -11,6 +11,7 @@
 #include <limits>
 #include <type_traits>
 
+#include "openvino/core/except.hpp"
 #include "openvino/core/type/bfloat16.hpp"
 #include "openvino/core/type/element_type.hpp"
 #include "openvino/core/type/float16.hpp"
@@ -1117,6 +1118,9 @@ inline void attn_softmax_kernel<float>(float* a,
                                                   scale_add2_reduce_max<true, true, true>};
     int dispatch = (alibi ? 0b100 : 0) | (attn_mask ? 0b010 : 0) | (causal_mask ? 0b001 : 0);
     float max = std::numeric_limits<float>::lowest();
+    OPENVINO_ASSERT(alibi, "CPU: alibi should not be nullptr in attn_softmax_kernel<float>.");
+    OPENVINO_ASSERT(attn_mask, "CPU: attn_mask should not be nullptr in attn_softmax_kernel<float>.");
+    OPENVINO_ASSERT(causal_mask, "CPU: causal_mask should not be nullptr in attn_softmax_kernel<float>.");
     if (attn_mask_prec == ov::element::f32) {
         funcs_fp32[dispatch](a,
                              scale,