apetag: make sure avio_get_str() doesn't read more than it should.

diff --git a/libavformat/apetag.c b/libavformat/apetag.c
index 68c987e7e6a89546f1cdaa1a7c8a7bf89c4b707f..e5c839ea34da28cae3d5f260e45b9c78a0521995 100644 (file)
--- a/libavformat/apetag.c
+++ b/libavformat/apetag.c
@@ -59,7 +59,7 @@ static int ape_tag_read_field(AVFormatContext *s)
         AVStream *st = avformat_new_stream(s, NULL);
         if (!st)
             return AVERROR(ENOMEM);
-        avio_get_str(pb, INT_MAX, filename, sizeof(filename));
+        avio_get_str(pb, size, filename, sizeof(filename));
         st->codec->extradata = av_malloc(size + FF_INPUT_BUFFER_PADDING_SIZE);
         if (!st->codec->extradata)
             return AVERROR(ENOMEM);