diff --git a/libavcodec/tiff.c b/libavcodec/tiff.c
index 08e8a87859..b071c3bf3a 100644
--- a/libavcodec/tiff.c
+++ b/libavcodec/tiff.c
@@ -252,6 +252,14 @@ static int init_image(TiffContext *s, AVFrame *frame)
 {
     int ret;
 
+    // make sure there is no aliasing in the following switch
+    if (s->bpp >= 100 || s->bppcount >= 10) {
+        av_log(s->avctx, AV_LOG_ERROR,
+               "Unsupported image parameters: bpp=%d, bppcount=%d\n",
+               s->bpp, s->bppcount);
+        return AVERROR_INVALIDDATA;
+    }
+
     switch (s->planar * 1000 + s->bpp * 10 + s->bppcount) {
     case 11:
         s->avctx->pix_fmt = AV_PIX_FMT_MONOBLACK;