[FFmpeg-cvslog] noise_bsf: fix division by 0
Michael Niedermayer
git at videolan.org
Sun Oct 14 22:20:36 CEST 2012
ffmpeg | branch: master | Michael Niedermayer <michaelni at gmx.at> | Sun Oct 14 21:45:42 2012 +0200| [93ef29b6f47eda7d73eb9e71628f1f1abb64266d] | committer: Michael Niedermayer
noise_bsf: fix division by 0
Fixes CID733737
Signed-off-by: Michael Niedermayer <michaelni at gmx.at>
> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=93ef29b6f47eda7d73eb9e71628f1f1abb64266d
---
libavcodec/noise_bsf.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/libavcodec/noise_bsf.c b/libavcodec/noise_bsf.c
index 1cab3e1..763af79 100644
--- a/libavcodec/noise_bsf.c
+++ b/libavcodec/noise_bsf.c
@@ -32,6 +32,9 @@ static int noise(AVBitStreamFilterContext *bsfc, AVCodecContext *avctx, const ch
int amount= args ? atoi(args) : (*state % 10001+1);
int i;
+ if(amount <= 0)
+ return AVERROR(EINVAL);
+
*poutbuf= av_malloc(buf_size + FF_INPUT_BUFFER_PADDING_SIZE);
memcpy(*poutbuf, buf, buf_size + FF_INPUT_BUFFER_PADDING_SIZE);
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