jas_image_t *jas_image_create(int numcmpts, jas_image_cmptparm_t *cmptparms,
  int clrspc)
{
	jas_image_t *image;
	size_t rawsize;
	uint_fast32_t inmem;
	int cmptno;
	jas_image_cmptparm_t *cmptparm;

	image = 0;

	JAS_DBGLOG(100, ("jas_image_create(%d, %p, %d)\n", numcmpts, cmptparms,
	  clrspc));

	if (!(image = jas_image_create0())) {
		goto error;
	}

	image->clrspc_ = clrspc;
	image->maxcmpts_ = numcmpts;
//	image->inmem_ = true;

	/* Allocate memory for the per-component information. */
	if (!(image->cmpts_ = jas_alloc2(image->maxcmpts_,
	  sizeof(jas_image_cmpt_t *)))) {
		goto error;
	}
	/* Initialize in case of failure. */
	for (cmptno = 0; cmptno < image->maxcmpts_; ++cmptno) {
		image->cmpts_[cmptno] = 0;
	}

#if 0
	/* Compute the approximate raw size of the image. */
	rawsize = 0;
	for (cmptno = 0, cmptparm = cmptparms; cmptno < numcmpts; ++cmptno,
	  ++cmptparm) {
		rawsize += cmptparm->width * cmptparm->height *
		  (cmptparm->prec + 7) / 8;
	}
	/* Decide whether to buffer the image data in memory, based on the
	  raw size of the image. */
	inmem = (rawsize < JAS_IMAGE_INMEMTHRESH);
#endif

	/* Create the individual image components. */
	for (cmptno = 0, cmptparm = cmptparms; cmptno < numcmpts; ++cmptno,
	  ++cmptparm) {
		if (!jas_safe_size_mul3(cmptparm->width, cmptparm->height,
		  (cmptparm->prec + 7), &rawsize)) {
			goto error;
		}
		rawsize /= 8;
		inmem = (rawsize < JAS_IMAGE_INMEMTHRESH);
		if (!(image->cmpts_[cmptno] = jas_image_cmpt_create(cmptparm->tlx,
		  cmptparm->tly, cmptparm->hstep, cmptparm->vstep,
		  cmptparm->width, cmptparm->height, cmptparm->prec,
		  cmptparm->sgnd, inmem))) {
			goto error;
		}
		++image->numcmpts_;
	}

	/* Determine the bounding box for all of the components on the
	  reference grid (i.e., the image area) */
	jas_image_setbbox(image);

	return image;

error:
	if (image) {
		jas_image_destroy(image);
	}
	return 0;
}
The software performs a calculation that can produce an integer overflow or wraparound, when the logic assumes that the resulting value will always be larger than the original value. This can introduce other weaknesses when the calculation is used for resource management or execution control.