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| author | Michael Niedermayer <michaelni@gmx.at> | 2012-03-02 16:44:49 +0100 |
|---|---|---|
| committer | Michael Niedermayer <michaelni@gmx.at> | 2012-03-02 16:44:49 +0100 |
| commit | d964db5742f317ff6c6ed6cf3e168b5b38566069 (patch) | |
| tree | 6bd29986dbbae0d7d9aeaef28044be58bc523702 /libavcodec/wmadec.c | |
| parent | a5bf9b351cc0db2b95cc199e30f2ec7325009c3a (diff) | |
| download | ffmpeg-d964db5742f317ff6c6ed6cf3e168b5b38566069.tar.gz | |
wmadec: fix off by 1 error on the pow_tab index check.
Fixes global out of array read.
Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
Diffstat (limited to 'libavcodec/wmadec.c')
| -rw-r--r-- | libavcodec/wmadec.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/libavcodec/wmadec.c b/libavcodec/wmadec.c index c90e22ca8e..7dae379ba8 100644 --- a/libavcodec/wmadec.c +++ b/libavcodec/wmadec.c @@ -368,7 +368,7 @@ static int decode_exp_vlc(WMACodecContext *s, int ch) } /* NOTE: this offset is the same as MPEG4 AAC ! */ last_exp += code - 60; - if ((unsigned)last_exp + 60 > FF_ARRAY_ELEMS(pow_tab)) { + if ((unsigned)last_exp + 60 >= FF_ARRAY_ELEMS(pow_tab)) { av_log(s->avctx, AV_LOG_ERROR, "Exponent out of range: %d\n", last_exp); return -1; |