[FFmpeg-devel] [PATCH 3/5] avformat/mxfdec: Check container_ul->desc before use

[Tomas Härdin]

fre 2024-06-07 klockan 02:32 +0200 skrev Michael Niedermayer:
> Fixes: CID1592939 Dereference after null check
> 
> Sponsored-by: Sovereign Tech Fund
> Signed-off-by: Michael Niedermayer <michael at niedermayer.cc>
> ---
>  libavformat/mxfdec.c | 1 +
>  1 file changed, 1 insertion(+)
> 
> diff --git a/libavformat/mxfdec.c b/libavformat/mxfdec.c
> index e65cec74c23..820b03940aa 100644
> --- a/libavformat/mxfdec.c
> +++ b/libavformat/mxfdec.c
> @@ -3031,6 +3031,7 @@ static int
> mxf_parse_structural_metadata(MXFContext *mxf)
>              if (container_ul->desc)
>                  av_dict_set(&st->metadata, "data_type",
> container_ul->desc, 0);
>              if (mxf->eia608_extract &&
> +                container_ul->desc &&
>                  !strcmp(container_ul->desc, "vbi_vanc_smpte_436M"))
> {
>                  st->codecpar->codec_type = AVMEDIA_TYPE_SUBTITLE;
>                  st->codecpar->codec_id = AV_CODEC_ID_EIA_608;

OK

/Tomas