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| author | Andreas Cadhalpun <Andreas.Cadhalpun@googlemail.com> | 2015-12-15 22:00:31 +0100 |
|---|---|---|
| committer | Luca Barbato <lu_zero@gentoo.org> | 2015-12-16 22:19:58 +0100 |
| commit | 17776638c392d104975aba169e17b186490e1d5e (patch) | |
| tree | e78694beeab21d0534b75e51890254e7d150666b /libavcodec | |
| parent | 90b1b9350c0a97c4065ae9054b83e57f48a0de1f (diff) | |
| download | ffmpeg-17776638c392d104975aba169e17b186490e1d5e.tar.gz | |
opus: Fix typo causing overflow in silk_stabilize_lsf
Due to this typo max_center can be too large, causing nlsf to be set to
too large values, which in turn can cause nlsf[i - 1] + min_delta[i] to
overflow to a negative value, which is not allowed for nlsf and can
cause an out of bounds read in silk_lsf2lpc.
Signed-off-by: Andreas Cadhalpun <Andreas.Cadhalpun@googlemail.com>
Signed-off-by: Luca Barbato <lu_zero@gentoo.org>
Diffstat (limited to 'libavcodec')
| -rw-r--r-- | libavcodec/opus_silk.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/libavcodec/opus_silk.c b/libavcodec/opus_silk.c index f881325d7b..583801d65c 100644 --- a/libavcodec/opus_silk.c +++ b/libavcodec/opus_silk.c @@ -824,7 +824,7 @@ static inline void silk_stabilize_lsf(int16_t nlsf[16], int order, const uint16_ /* upper extent */ for (i = order; i > k; i--) - max_center -= min_delta[k]; + max_center -= min_delta[i]; max_center -= min_delta[k] >> 1; /* move apart */ |