diff --git a/libavcodec/exr.c b/libavcodec/exr.c
index d67f45b983..a0f00a7cf1 100644
--- a/libavcodec/exr.c
+++ b/libavcodec/exr.c
@@ -2247,6 +2247,8 @@ static int decode_frame(AVCodecContext *avctx, AVFrame *picture,
     out_line_size    = avctx->width * s->desc->comp[0].step;
 
     if (s->is_tile) {
+        if (s->tile_attr.ySize <= 0 || s->tile_attr.xSize <= 0)
+            return AVERROR_INVALIDDATA;
         nb_blocks = ((s->xdelta + s->tile_attr.xSize - 1) / s->tile_attr.xSize) *
         ((s->ydelta + s->tile_attr.ySize - 1) / s->tile_attr.ySize);
     } else { /* scanline */