avformat/rmdec: Check codec_data_size
authorMichael Niedermayer <michaelni@gmx.at>
Wed, 3 Dec 2014 19:01:18 +0000 (20:01 +0100)
committerMichael Niedermayer <michaelni@gmx.at>
Sun, 21 Dec 2014 03:40:35 +0000 (04:40 +0100)
Fixes infinite loop
Fixes Ticket4154

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit a6f730730b82645a9d31aad0968487cb77d6946c)

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
libavformat/rmdec.c

index 37d91ec..38f101f 100644 (file)
@@ -308,6 +308,9 @@ ff_rm_read_mdpr_codecdata (AVFormatContext *s, AVIOContext *pb,
     int64_t codec_pos;
     int ret;
 
+    if (codec_data_size < 0)
+        return AVERROR_INVALIDDATA;
+
     avpriv_set_pts_info(st, 64, 1, 1000);
     codec_pos = avio_tell(pb);
     v = avio_rb32(pb);