Pointer ctx->priv_data->buffer_pkt->data, that can have only NULL value
(checked at vp9_superframe_split_bsf.c:48), is dereferenced at
vp9_superframe_split_bsf.c:57.
> -----Original Message-----
> From: Dawid Kozinski <d.kozin...@samsung.com>
> Sent: piątek, 6 października 2023 13:02
> To: d.frankie...@samsung.com; ffmpeg-devel@ffmpeg.org
> Cc: Dawid Kozinski <d.kozin...@samsung.com>
> Subject: [PATCH v1] avcodec/vp9_superframe_split_bsf: Fix for possible null
> pointer dereference
>
> Signed-off-by: Dawid Kozinski <d.kozin...@samsung.com>
> ---
> libavcodec/vp9_superframe_split_bsf.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/libavcodec/vp9_superframe_split_bsf.c
> b/libavcodec/vp9_superframe_split_bsf.c
> index cddd48119c..4f94afc6d9 100644
> --- a/libavcodec/vp9_superframe_split_bsf.c
> +++ b/libavcodec/vp9_superframe_split_bsf.c
> @@ -45,7 +45,7 @@ static int vp9_superframe_split_filter(AVBSFContext *ctx,
> AVPacket *out)
> int i, j, ret, marker;
> int is_superframe = !!s->buffer_pkt->data;
>
> - if (!s->buffer_pkt->data) {
> + if (s->buffer_pkt->data) {
> ret = ff_bsf_get_packet_ref(ctx, s->buffer_pkt);
> if (ret < 0)
> return ret;
> --
> 2.25.1
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