X-Git-Url: https://git.sesse.net/?a=blobdiff_plain;f=libavcodec%2Fmlp_parser.c;h=eb3435b6cbafb35d094dd09fd8499cdbed1ba7f1;hb=27e30c73d722ec13e59753dea91be00859c72bf2;hp=185bd4d667f66284aba7a69ef22a2a0c27901a33;hpb=0dc11d8bbd470db89fbc17b7434e992c9129b310;p=ffmpeg

diff --git a/libavcodec/mlp_parser.c b/libavcodec/mlp_parser.c
index 185bd4d667f..eb3435b6cba 100644
--- a/libavcodec/mlp_parser.c
+++ b/libavcodec/mlp_parser.c
@@ -320,7 +320,7 @@ static int mlp_parse(AVCodecParserContext *s,
         mp->bytes_left = 0;
     }
 
-    sync_present = (AV_RB32(buf + 4) & 0xfffffffe) == 0xf8726fba;
+    sync_present = buf_size >= 8 && (AV_RB32(buf + 4) & 0xfffffffe) == 0xf8726fba;
 
     if (!sync_present) {
         /* The first nibble of a frame is a parity check of the 4-byte