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| author | Andreas Cadhalpun <andreas.cadhalpun@googlemail.com> | 2015-07-03 01:14:51 +0200 |
|---|---|---|
| committer | Luca Barbato <lu_zero@gentoo.org> | 2015-07-03 01:50:09 +0200 |
| commit | 76d4c62734fbb8a9f497712812f30ff5c27e787f (patch) | |
| tree | 4afda2e7ea5b19a8feb7b006aaec135e41a2dc7c | |
| parent | 016cac75c6061a1c03f812ddf258b8baefe70b00 (diff) | |
| download | ffmpeg-76d4c62734fbb8a9f497712812f30ff5c27e787f.tar.gz | |
webp: Make sure enough bytes are available
Every chunk needs at least 8 bytes for chunk_type and chunk_size.
Prevent a possible infinite loop.
CC: libav-stable@libav.org
Signed-off-by: Luca Barbato <lu_zero@gentoo.org>
| -rw-r--r-- | libavcodec/webp.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/libavcodec/webp.c b/libavcodec/webp.c index 62f35f7480..4138e5414f 100644 --- a/libavcodec/webp.c +++ b/libavcodec/webp.c @@ -1362,7 +1362,7 @@ static int webp_decode_frame(AVCodecContext *avctx, void *data, int *got_frame, return AVERROR_INVALIDDATA; } - while (bytestream2_get_bytes_left(&gb) > 0) { + while (bytestream2_get_bytes_left(&gb) > 8) { char chunk_str[5] = { 0 }; chunk_type = bytestream2_get_le32(&gb); |