diff --git a/libavformat/wavdec.c b/libavformat/wavdec.c
index dec41d545b..703a98414d 100644
--- a/libavformat/wavdec.c
+++ b/libavformat/wavdec.c
@@ -589,7 +589,8 @@ break_loop:
     } else if (st->codecpar->codec_id == AV_CODEC_ID_XMA1 ||
                st->codecpar->codec_id == AV_CODEC_ID_XMA2) {
         st->codecpar->block_align = 2048;
-    } else if (st->codecpar->codec_id == AV_CODEC_ID_ADPCM_MS && st->codecpar->channels > 2) {
+    } else if (st->codecpar->codec_id == AV_CODEC_ID_ADPCM_MS && st->codecpar->channels > 2 &&
+               st->codecpar->block_align < INT_MAX / st->codecpar->channels) {
         st->codecpar->block_align *= st->codecpar->channels;
     }