Check unp_size for possible overflows too

Originally committed as revision 10490 to svn://svn.ffmpeg.org/ffmpeg/trunk
18 years ago · f0dd9d4505
parent 208506e2a6
commit f0dd9d4505
1 changed files with 1 additions and 1 deletions
--- a/libavcodec/smacker.c
+++ b/libavcodec/smacker.c
@ -590,7 +590,7 @@ static int smka_decode_frame(AVCodecContext *avctx, void *data, int *data_size,
    }
    stereo = get_bits1(&gb);
    bits = get_bits1(&gb);
-    if ((unp_size << !bits) > *data_size) {
+    if (unp_size & 0xC0000000 || (unp_size << !bits) > *data_size) {
        av_log(avctx, AV_LOG_ERROR, "Frame is too large to fit in buffer\n");
        return -1;
    }