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| author | Justin Ruggles <justin.ruggles@gmail.com> | 2011-09-21 11:42:55 -0400 |
|---|---|---|
| committer | Reinhard Tartler <siretart@tauware.de> | 2012-03-18 17:50:43 +0100 |
| commit | b3d7fffee3bf0e2b28ce98ba609b7fd2099938db (patch) | |
| tree | 447c4392e164a4c9dd1d88e1f5476558721547b1 | |
| parent | ef7a4df4584db51a97edea3b1140661faf4ddf56 (diff) | |
| download | ffmpeg-b3d7fffee3bf0e2b28ce98ba609b7fd2099938db.tar.gz | |
smacker: check buffer size before reading output size
(cherry picked from commit cf044f8bff0d28dbc34492f18b0d18b3ba8bad9d)
Signed-off-by: Anton Khirnov <anton@khirnov.net>
| -rw-r--r-- | libavcodec/smacker.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/libavcodec/smacker.c b/libavcodec/smacker.c index 33ea7b95d6..f3c59da7db 100644 --- a/libavcodec/smacker.c +++ b/libavcodec/smacker.c @@ -586,6 +586,11 @@ static int smka_decode_frame(AVCodecContext *avctx, void *data, int *data_size, int bits, stereo; int pred[2] = {0, 0}; + if (buf_size <= 4) { + av_log(avctx, AV_LOG_ERROR, "packet is too small\n"); + return AVERROR(EINVAL); + } + unp_size = AV_RL32(buf); init_get_bits(&gb, buf + 4, (buf_size - 4) * 8); |