diff --git a/libavformat/wavdec.c b/libavformat/wavdec.c
index 668c8adc36..89855670d9 100644
--- a/libavformat/wavdec.c
+++ b/libavformat/wavdec.c
@@ -34,6 +34,7 @@
 #include "libavutil/log.h"
 #include "libavutil/mathematics.h"
 #include "libavutil/opt.h"
+#include "libavcodec/internal.h"
 #include "avformat.h"
 #include "avio.h"
 #include "avio_internal.h"
@@ -908,7 +909,9 @@ static int w64_read_header(AVFormatContext *s)
             if (ret < 0)
                 return ret;
             avio_skip(pb, FFALIGN(size, INT64_C(8)) - size);
-            if (st->codecpar->block_align) {
+            if (st->codecpar->block_align &&
+                st->codecpar->ch_layout.nb_channels < FF_SANE_NB_CHANNELS &&
+                st->codecpar->bits_per_coded_sample < 128) {
                 int block_align = st->codecpar->block_align;
 
                 block_align = FFMAX(block_align,