avformat/mp3dec: Check that the frame fits within the probe buffer

Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

diff --git a/libavformat/mp3dec.c b/libavformat/mp3dec.c
index 6888c88f83afef398a78671fd7da9f90cc2fbe51..4fde920cafd953a5b80c3c895589f1a04110e4e1 100644 (file)
--- a/libavformat/mp3dec.c
+++ b/libavformat/mp3dec.c
@@ -89,7 +89,7 @@ static int mp3_read_probe(const AVProbeData *p)
 
             header = AV_RB32(buf2);
             ret = avpriv_mpegaudio_decode_header(&h, header);
-            if (ret != 0)
+            if (ret != 0 || end - buf2 < h.frame_size)
                 break;
             buf2 += h.frame_size;
             framesizes += h.frame_size;