X-Git-Url: https://git.sesse.net/?a=blobdiff_plain;f=libavcodec%2Fadpcm.c;h=7785a7a6dcf9761bf351cddd7a14c33516753173;hb=5387b0cbfb6eef2d502cc22bc2ab4ed7308ffcac;hp=2f95a6ff458dc5ea926a31d3e1a25b4959291873;hpb=cb416a7d795414aaa534c27943bda0d3aef3b5a1;p=ffmpeg

diff --git a/libavcodec/adpcm.c b/libavcodec/adpcm.c
index 2f95a6ff458..7785a7a6dcf 100644
--- a/libavcodec/adpcm.c
+++ b/libavcodec/adpcm.c
@@ -246,6 +246,10 @@ static inline short adpcm_ms_expand_nibble(ADPCMChannelStatus *c, int nibble)
     c->sample1 = av_clip_int16(predictor);
     c->idelta = (ff_adpcm_AdaptationTable[(int)nibble] * c->idelta) >> 8;
     if (c->idelta < 16) c->idelta = 16;
+    if (c->idelta > INT_MAX/768) {
+        av_log(NULL, AV_LOG_WARNING, "idelta overflow\n");
+        c->idelta = INT_MAX/768;
+    }
 
     return c->sample1;
 }