diff --git a/aom/src/aom_image.c b/aom/src/aom_image.c
index 3b1c33d..b68dc4c 100644
--- a/aom/src/aom_image.c
+++ b/aom/src/aom_image.c

@@ -36,8 +36,7 @@
   /* NOTE: In this function, bit_depth is either 8 or 16 (if
    * AOM_IMG_FMT_HIGHBITDEPTH is set), never 10 or 12.
    */
-  unsigned int h, w, s, xcs, ycs, bps, bit_depth;
-  unsigned int stride_in_bytes;
+  unsigned int h, w, xcs, ycs, bps, bit_depth;
 
   if (img != NULL) memset(img, 0, sizeof(aom_image_t));
 
@@ -108,9 +107,11 @@
   w = align_image_dimension(d_w, xcs, size_align);
   h = align_image_dimension(d_h, ycs, size_align);
 
-  s = (fmt & AOM_IMG_FMT_PLANAR) ? w : bps * w / bit_depth;
+  uint64_t s = (fmt & AOM_IMG_FMT_PLANAR) ? w : (uint64_t)bps * w / bit_depth;
   s = (s + 2 * border + stride_align - 1) & ~(stride_align - 1);
-  stride_in_bytes = s * bit_depth / 8;
+  s = s * bit_depth / 8;
+  if (s > INT_MAX) goto fail;
+  const int stride_in_bytes = (int)s;
 
   /* Allocate the new image */
   if (!img) {
@@ -232,7 +233,7 @@
 
       img->planes[AOM_PLANE_Y] =
           data + x * bytes_per_sample + y * img->stride[AOM_PLANE_Y];
-      data += (img->h + 2 * border) * img->stride[AOM_PLANE_Y];
+      data += ((size_t)img->h + 2 * border) * img->stride[AOM_PLANE_Y];
 
       unsigned int uv_border_h = border >> img->y_chroma_shift;
       unsigned int uv_x = x >> img->x_chroma_shift;
@@ -244,14 +245,14 @@
       } else if (!(img->fmt & AOM_IMG_FMT_UV_FLIP)) {
         img->planes[AOM_PLANE_U] =
             data + uv_x * bytes_per_sample + uv_y * img->stride[AOM_PLANE_U];
-        data += ((img->h >> img->y_chroma_shift) + 2 * uv_border_h) *
+        data += ((size_t)(img->h >> img->y_chroma_shift) + 2 * uv_border_h) *
                 img->stride[AOM_PLANE_U];
         img->planes[AOM_PLANE_V] =
             data + uv_x * bytes_per_sample + uv_y * img->stride[AOM_PLANE_V];
       } else {
         img->planes[AOM_PLANE_V] =
             data + uv_x * bytes_per_sample + uv_y * img->stride[AOM_PLANE_V];
-        data += ((img->h >> img->y_chroma_shift) + 2 * uv_border_h) *
+        data += ((size_t)(img->h >> img->y_chroma_shift) + 2 * uv_border_h) *
                 img->stride[AOM_PLANE_V];
         img->planes[AOM_PLANE_U] =
             data + uv_x * bytes_per_sample + uv_y * img->stride[AOM_PLANE_U];