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Вебинар: Трудности при интеграции SAST, как с ними справляться - 04.04

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Примеры ошибок, обнаруженных с помощью …

Примеры ошибок, обнаруженных с помощью диагностики V630

V630. The 'malloc' function is used to allocate memory for an array of objects that are classes containing constructors/destructors.


Cocos2d-x

V630 The 'malloc' function is used to allocate memory for an array of objects which are classes containing constructors and destructors. ccmotionstreak.cpp 122


Vec2::Vec2() : x(0.0f), y(0.0f) { }
Vec2::Vec2(float xx, float yy) : x(xx), y(yy) { }

bool MotionStreak::initWithFade(...)
{
  ....
  _pointVertexes = (Vec2*)malloc(sizeof(Vec2) * _maxPoints);
  _vertices = (Vec2*)malloc(sizeof(Vec2) * _maxPoints * 2);
  _texCoords = (Tex2F*)malloc(sizeof(Tex2F) * _maxPoints * 2);
  ....
}

Haiku Operation System

V630 The 'malloc' function is used to allocate memory for an array of objects which are classes containing constructors. PDFWriter.cpp 117


BRect::BRect();
BRect::BRect(const BRect& other);
BRect::BRect(float side);

BPoint::BPoint();
BPoint::BPoint(float x, float y);
BPoint::BPoint(const BPoint& p);

status_t
PDFWriter::PrintPage(int32  pageNumber, int32 pageCount)
{
  ....
  pictures =
    (BPicture **)malloc(pictureCount * sizeof(BPicture *));
  picRects =
    (BRect *)malloc(pictureCount * sizeof(BRect));    // <=
  picPoints =
    (BPoint *)malloc(pictureCount * sizeof(BPoint));  // <=
  picRegion = new BRegion();
  ....
}

Computational Network Toolkit

V630 The 'malloc' function is used to allocate memory for an array of objects which are classes containing constructors. latticeforwardbackward.cpp 912


struct aligninfo // phonetic alignment
{
  unsigned int unit : 19;   // triphone index
  unsigned int frames : 11; // duration in frames
  unsigned int unused : 1; // (for future use)
  unsigned int last : 1;   // set for last entry
  aligninfo(size_t punit, size_t pframes)
      : unit((unsigned int) punit),
        frames((unsigned int) pframes), unused(0), last(0)
  {
    checkoverflow(unit, punit, "aligninfo::unit");
    checkoverflow(frames, pframes, "aligninfo::frames");
  }
  aligninfo() // [v-hansu] initialize to impossible values
  {
#ifdef INITIAL_STRANGE
    unit = unsigned int(-1);
    frames = unsigned int(-1);
    unused = unsigned int(-1);
    last = unsigned int(-1);
#endif
  }
  template <class IDMAP>
  void updateunit(const IDMAP& idmap /*[unit] -> new unit*/)
  {
    const size_t mappedunit = idmap[unit];
    unit = (unsigned int) mappedunit;
    checkoverflow(unit, mappedunit, "aligninfo::unit");
  }
};

void lattice::forwardbackwardalign()
{
  ....
  aligninfo *refinfo;
  unsigned short *refalign;

  refinfo = (aligninfo *) malloc(sizeof(aligninfo) * 1);    // <=
  refalign = (unsigned short *) malloc(sizeof(....) * framenum);

  array_ref<aligninfo> refunits(refinfo, 1);
  array_ref<unsigned short> refedgealignmentsj(....);
  ....
}

CryEngine V

V630 The '_alloca' function is used to allocate memory for an array of objects which are classes containing constructors. command_buffer.cpp 62


void CBuffer::Execute()
{
  ....
  QuatT * pJointsTemp = static_cast<QuatT*>(
    alloca(m_state.m_jointCount * sizeof(QuatT)));
  ....
}

Similar errors can be found in some other places:

  • V630 The '_alloca' function is used to allocate memory for an array of objects which are classes containing constructors. command_buffer.cpp 67
  • V630 The '_alloca' function is used to allocate memory for an array of objects which are classes containing constructors. posematching.cpp 144
  • V630 The '_alloca' function is used to allocate memory for an array of objects which are classes containing constructors. characterinstance.cpp 280
  • And 4 additional diagnostic messages.

EFL Core Libraries

V630 The 'calloc' function is used to allocate memory for an array of objects which are classes containing constructors. ephysics_world.cpp 299


class btVector3
{
public:
  ....
  btScalar m_floats[4];
  inline btVector3() { }
  ....
};

typedef struct _Simulation_Msg Simulation_Msg;

struct _Simulation_Msg {
     EPhysics_Body *body_0;
     EPhysics_Body *body_1;
     btVector3 pos_a;
     btVector3 pos_b;
     Eina_Bool tick:1;
};

static void
_ephysics_world_tick_dispatch(EPhysics_World *world)
{
   Simulation_Msg *msg;

   if (!world->ticked)
     return;

   world->ticked = EINA_FALSE;
   world->pending_ticks++;

   msg = (Simulation_Msg *) calloc(1, sizeof(Simulation_Msg));
   msg->tick = EINA_TRUE;
   ecore_thread_feedback(world->cur_th, msg);
}

Similar errors can be found in some other places:

  • V630 The 'calloc' function is used to allocate memory for an array of objects which are classes containing constructors. ephysics_world.cpp 471

Newton Game Dynamics

V630 The '_alloca' function is used to allocate memory for an array of objects which are classes containing constructors. dgSkeletonContainer.cpp 1341


#define alloca _alloca
....
#define dAlloca(type,size) (type*) alloca ((size) * sizeof (type))
....
dgSpatialMatrix::dgSpatialMatrix();
dgSpatialMatrix::dgSpatialMatrix(dgFloat32 val);
....
dgSpatialMatrix* const bodyMassArray = dgAlloca(dgSpatialMatrix,
                                                m_nodeCount);

Newton Game Dynamics

V630 The '_alloca' function is used to allocate memory for an array of objects which are classes containing constructors. dgSkeletonContainer.cpp 1342


#define alloca _alloca
....
#define dAlloca(type,size) (type*) alloca ((size) * sizeof (type))
....
dgSpatialMatrix::dgSpatialMatrix();
dgSpatialMatrix::dgSpatialMatrix(dgFloat32 val);
....
dgSpatialMatrix* const jointMassArray = dgAlloca(dgSpatialMatrix,
                                                 m_nodeCount);

MuseScore

V630 The 'malloc' function is used to allocate memory for an array of objects which are classes containing constructors and destructors. IntervalTree.h 70


IntervalTree<T,K>(const intervalTree& other) {
    center = other.center;
    intervals = other.intervals;
    if (other.left) {
        left = (intervalTree*) malloc(sizeof(intervalTree));  // <=
        *left = *other.left;
    } else {
        left = NULL;
    }
    if (other.right) {
        right = new intervalTree();
        *right = *other.right;
    } else {
        right = NULL;
    }
}

IntervalTree<T,K>& operator=(const intervalTree& other) {
    center = other.center;
    intervals = other.intervals;
    if (other.left) {
        left = new intervalTree();                            // <=
        *left = *other.left;
    } else {
        left = NULL;
    }
    if (other.right) {
        right = new intervalTree();                           // <=
        *right = *other.right;
    } else {
        right = NULL;
    }
    return *this;
}

Blender

V630 The 'malloc' function is used to allocate memory for an array of objects which are classes containing constructors. FitCurve.cpp 129


typedef struct Point2Struct
{
  double coordinates[2];

  Point2Struct() { .... }
  ....
} Point2;

typedef Point2 Vector2;

using BezierCurve = Vector2 *;

static BezierCurve GenerateBezier(Vector2 *d,
                                  int first, int last,
                                  double *uPrime,
                                  Vector2 tHat1, Vector2 tHat2)
{
  ....
  BezierCurve bezCurve; /* RETURN bezier curve control points. */
  ....
  bezCurve = (Vector2 *)malloc(4 * sizeof(Vector2));     // <=
  ....
  if (alpha_l < 1.0e-6 || alpha_r < 1.0e-6)
  {
    ....
    bezCurve[0] = d[first];
    bezCurve[3] = d[last];
    ....
  }
  ....
}