diff options
Diffstat (limited to 'libavcodec/cdgraphics.c')
| -rw-r--r-- | libavcodec/cdgraphics.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/libavcodec/cdgraphics.c b/libavcodec/cdgraphics.c index d22e9f6e73..ed2edfe450 100644 --- a/libavcodec/cdgraphics.c +++ b/libavcodec/cdgraphics.c @@ -289,7 +289,9 @@ static int cdg_decode_frame(AVCodecContext *avctx, inst = bytestream_get_byte(&buf); inst &= CDG_MASK; buf += 2; /// skipping 2 unneeded bytes - bytestream_get_buffer(&buf, cdg_data, buf_size - CDG_HEADER_SIZE); + + if (buf_size > CDG_HEADER_SIZE) + bytestream_get_buffer(&buf, cdg_data, buf_size - CDG_HEADER_SIZE); if ((command & CDG_MASK) == CDG_COMMAND) { switch (inst) { |