diff --git a/src/mesa/drivers/dri/i965/intel_tex_subimage.c b/src/mesa/drivers/dri/i965/intel_tex_subimage.c
index cb5738a9387..3e4ed1b01e0 100644
--- a/src/mesa/drivers/dri/i965/intel_tex_subimage.c
+++ b/src/mesa/drivers/dri/i965/intel_tex_subimage.c
@@ -488,8 +488,8 @@ linear_to_tiled(uint32_t xt1, uint32_t xt2,
          /* Translate by (xt,yt) for single-tile copier. */
          tile_copy(x0-xt, x1-xt, x2-xt, x3-xt,
                    y0-yt, y1-yt,
-                   dst + xt * th + yt * dst_pitch,
-                   src + xt      + yt * src_pitch,
+                   dst + (ptrdiff_t) xt * th + (ptrdiff_t) yt * dst_pitch,
+                   src + (ptrdiff_t) xt      + (ptrdiff_t) yt * src_pitch,
                    src_pitch,
                    swizzle_bit,
                    mem_copy);
@@ -654,7 +654,8 @@ intel_texsubimage_tiled_memcpy(struct gl_context * ctx,
    linear_to_tiled(
       xoffset * cpp, (xoffset + width) * cpp,
       yoffset, yoffset + height,
-      bo->virtual, pixels - yoffset * src_pitch - xoffset * cpp,
+      bo->virtual,
+      pixels - (ptrdiff_t) yoffset * src_pitch - (ptrdiff_t) xoffset * cpp,
       image->mt->pitch, src_pitch,
       brw->has_swizzling,
       image->mt->tiling,