[FFmpeg-devel] [PATCH 6/6] lavc/pngenc: check malloc fail before using the pointer

[mypopy at gmail.com]

On Sat, May 11, 2019 at 12:06 AM Jun Zhao <mypopydev at gmail.com> wrote:
>
> From: Jun Zhao <barryjzhao at tencent.com>
>
> Need to check malloc fail before using the pointer
>
> Signed-off-by: Jun Zhao <barryjzhao at tencent.com>
> ---
>  libavcodec/pngenc.c |    2 +-
>  1 files changed, 1 insertions(+), 1 deletions(-)
>
> diff --git a/libavcodec/pngenc.c b/libavcodec/pngenc.c
> index 69b4495..d4d8dc8 100644
> --- a/libavcodec/pngenc.c
> +++ b/libavcodec/pngenc.c
> @@ -748,11 +748,11 @@ static int apng_encode_frame(AVCodecContext *avctx, const AVFrame *pict,
>      original_bytestream_end = s->bytestream_end;
>
>      temp_bytestream = av_malloc(original_bytestream_end - original_bytestream);
> -    temp_bytestream_end = temp_bytestream + (original_bytestream_end - original_bytestream);
>      if (!temp_bytestream) {
>          ret = AVERROR(ENOMEM);
>          goto fail;
>      }
> +    temp_bytestream_end = temp_bytestream + (original_bytestream_end - original_bytestream);
>
>      for (last_fctl_chunk.dispose_op = 0; last_fctl_chunk.dispose_op < 3; ++last_fctl_chunk.dispose_op) {
>          // 0: APNG_DISPOSE_OP_NONE
> --
> 1.7.1
Pushed, Thanks