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| author | Paul B Mahol <onemda@gmail.com> | 2013-09-25 19:35:06 +0000 |
|---|---|---|
| committer | Paul B Mahol <onemda@gmail.com> | 2013-09-25 19:45:49 +0000 |
| commit | f5498ef38daa541f03b9c8d3985579394c8407e5 (patch) | |
| tree | 7470f964e5c836c2e1247f84a4557e9c3bc41ded /libavcodec/flicvideo.c | |
| parent | c99d27287d9bcf3cd17b27c81d4171accae5991b (diff) | |
| download | ffmpeg-streaming-f5498ef38daa541f03b9c8d3985579394c8407e5.zip ffmpeg-streaming-f5498ef38daa541f03b9c8d3985579394c8407e5.tar.gz | |
avcodec/flicvideo: fix infinite loops
Fixes #2995.
Reported-by: Piotr Bandurski <ami_stuff@o2.pl>
Signed-off-by: Paul B Mahol <onemda@gmail.com>
Diffstat (limited to 'libavcodec/flicvideo.c')
| -rw-r--r-- | libavcodec/flicvideo.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/libavcodec/flicvideo.c b/libavcodec/flicvideo.c index a2f9ef9..c4bc1a2 100644 --- a/libavcodec/flicvideo.c +++ b/libavcodec/flicvideo.c @@ -202,7 +202,8 @@ static int flic_decode_frame_8BPP(AVCodecContext *avctx, frame_size -= 16; /* iterate through the chunks */ - while ((frame_size >= 6) && (num_chunks > 0)) { + while ((frame_size >= 6) && (num_chunks > 0) && + bytestream2_get_bytes_left(&g2) >= 4) { int stream_ptr_after_chunk; chunk_size = bytestream2_get_le32(&g2); if (chunk_size > frame_size) { @@ -519,7 +520,8 @@ static int flic_decode_frame_15_16BPP(AVCodecContext *avctx, frame_size -= 16; /* iterate through the chunks */ - while ((frame_size > 0) && (num_chunks > 0)) { + while ((frame_size > 0) && (num_chunks > 0) && + bytestream2_get_bytes_left(&g2) >= 4) { int stream_ptr_after_chunk; chunk_size = bytestream2_get_le32(&g2); if (chunk_size > frame_size) { |
