diff --git a/test/cfg/opencv2.cpp b/test/cfg/opencv2.cpp
index 7af2d6b7055..b1279fef89e 100644
--- a/test/cfg/opencv2.cpp
+++ b/test/cfg/opencv2.cpp
@@ -28,7 +28,9 @@ void validCode(const char* argStr)
     cvStr += " World";
     std::cout << cvStr;
 
-    char * pBuf = (char *)cv::fastMalloc(20); // cppcheck-suppress cstyleCast
+    // cppcheck-suppress [cstyleCast, unusedAllocatedMemory]
+    char * pBuf = (char *)cv::fastMalloc(20);
+    // cppcheck-suppress uninitdata
     cv::fastFree(pBuf);
 }
 
@@ -40,7 +42,8 @@ void ignoredReturnValue()
 
 void memleak()
 {
-    const char * pBuf = (char *)cv::fastMalloc(1000); // cppcheck-suppress cstyleCast
+    // cppcheck-suppress [cstyleCast, unusedAllocatedMemory]
+    const char * pBuf = (char *)cv::fastMalloc(1000);
     std::cout << pBuf;
     // cppcheck-suppress memleak
 }
diff --git a/test/cfg/std.cpp b/test/cfg/std.cpp
index d27a87d0b47..0438ea39487 100644
--- a/test/cfg/std.cpp
+++ b/test/cfg/std.cpp
@@ -2923,7 +2923,7 @@ void uninitvar_longjmp(void)
 void uninitvar_malloc(void)
 {
     size_t size;
-    // cppcheck-suppress [uninitvar, cstyleCast]
+    // cppcheck-suppress [uninitvar, cstyleCast, unusedAllocatedMemory]
     int *p = (int*)std::malloc(size);
     free(p);
 }
@@ -4949,7 +4949,7 @@ void std_vector_data_arithmetic()
 
 void memleak_std_malloc() // #12332
 {
-    //cppcheck-suppress [unreadVariable, constVariablePointer]
+    //cppcheck-suppress [unreadVariable, constVariablePointer, unusedAllocatedMemory]
     void* p = std::malloc(1);
     //cppcheck-suppress memleak
 }