avformat/mov: Append place name instead of overwriting for loci

[ffmpeg] / libavformat / rtpdec_xiph.c

diff --git a/libavformat/rtpdec_xiph.c b/libavformat/rtpdec_xiph.c
index a09653f34053193d346c9409f5257780f829c220..eceb840580f8ff04d701bdb9224a1cdfc059de6b 100644 (file)
--- a/libavformat/rtpdec_xiph.c
+++ b/libavformat/rtpdec_xiph.c
@@ -73,7 +73,7 @@ static int xiph_handle_packet(AVFormatContext *ctx, PayloadContext *data,
         }
         pkt_len = AV_RB16(data->split_buf + data->split_pos);
         data->split_pos += 2;
-        if (data->split_pos + pkt_len > data->split_buf_len) {
+        if (pkt_len > data->split_buf_len - data->split_pos) {
             av_log(ctx, AV_LOG_ERROR, "Not enough data to return\n");
             return AVERROR_INVALIDDATA;
         }
@@ -88,7 +88,7 @@ static int xiph_handle_packet(AVFormatContext *ctx, PayloadContext *data,
         return data->split_pkts > 0;
     }
 
-    if (len < 6) {
+    if (len < 6 || len > INT_MAX/2) {
         av_log(ctx, AV_LOG_ERROR, "Invalid %d byte packet\n", len);
         return AVERROR_INVALIDDATA;
     }