On Tue, Feb 13, 2024 at 6:39 PM Frank Plowman <p...@frankplowman.com> wrote:
> On 13/02/2024 02:30, Nuo Mi wrote:
> > fc->ref points to an old VVCFrame, which cannot be used after
> frame_context_setup.
> > This prevents crashes in decode_nal_units-->ff_vvc_report_frame_finished.
> >
> > Signed-off-by: Frank Plowman <p...@frankplowman.com>
> > ---
> > libavcodec/vvc/vvcdec.c | 2 ++
> > 1 file changed, 2 insertions(+)
> >
> > diff --git a/libavcodec/vvc/vvcdec.c b/libavcodec/vvc/vvcdec.c
> > index 8163b5ecb6..e88e746de4 100644
> > --- a/libavcodec/vvc/vvcdec.c
> > +++ b/libavcodec/vvc/vvcdec.c
> > @@ -594,6 +594,8 @@ static int frame_context_setup(VVCFrameContext *fc,
> VVCContext *s)
> > {
> > int ret;
> >
> > + fc->ref = NULL;
> > +
> > // copy refs from the last frame
> > if (s->nb_frames && s->nb_fcs > 1) {
> > VVCFrameContext *prev = get_frame_context(s, fc, -1);
>
> LGTM. Fixes the crash on all the fuzz data I have which produce it.
> FATE runners are failing at the time of writing, but I manually ran this
> against the VVC tests as well as the suite from the FFVVC GitHub and all
> tests passed.
>
> Btw, I don't think you should add Signed-off-by tags for other people.
> Their exact meaning varies by project and I am not sure of their meaning
> in FFmpeg (if there is one), but generally they indicate that person
> claims some sort of responsibility for the patch in the case of e.g. a
> license violation. That being said, I am happy to sign this off.
>
Hi Frank,
Thank you for the review.
Sorry for the misuse. I will pay attention to it next time.
Patch applied.
>
> --
> Frank
> _______________________________________________
> ffmpeg-devel mailing list
> ffmpeg-devel@ffmpeg.org
> https://ffmpeg.org/mailman/listinfo/ffmpeg-devel
>
> To unsubscribe, visit link above, or email
> ffmpeg-devel-requ...@ffmpeg.org with subject "unsubscribe".
>
_______________________________________________
ffmpeg-devel mailing list
ffmpeg-devel@ffmpeg.org
https://ffmpeg.org/mailman/listinfo/ffmpeg-devel
To unsubscribe, visit link above, or email
ffmpeg-devel-requ...@ffmpeg.org with subject "unsubscribe".
