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author | Michael Niedermayer <michaelni@gmx.at> | 2012-11-14 21:14:40 +0100 |
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committer | Michael Niedermayer <michaelni@gmx.at> | 2012-11-14 21:15:08 +0100 |
commit | 50f0a6b4e64b78e0df1919ee1fa5e805309911c2 (patch) | |
tree | 4af5e8a5affeef33eef7dec9039b2b1d21f5302d /libavcodec | |
parent | 30bce34b6719ca99ad72c62e2fba3eade71f1eae (diff) | |
download | ffmpeg-50f0a6b4e64b78e0df1919ee1fa5e805309911c2.tar.gz |
wmaprodec: check num_sfb for validity. Fix out of array accesses
Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
Diffstat (limited to 'libavcodec')
-rw-r--r-- | libavcodec/wmaprodec.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/libavcodec/wmaprodec.c b/libavcodec/wmaprodec.c index e071eb1f95..c5cc46b5ce 100644 --- a/libavcodec/wmaprodec.c +++ b/libavcodec/wmaprodec.c @@ -412,6 +412,10 @@ static av_cold int decode_init(AVCodecContext *avctx) } s->sfb_offsets[i][band - 1] = subframe_len; s->num_sfb[i] = band - 1; + if (s->num_sfb[i] <= 0) { + av_log(avctx, AV_LOG_ERROR, "num_sfb invalid\n"); + return AVERROR_INVALIDDATA; + } } |