[FFmpeg-devel] [PATCH] lavc/v4l2_m2m_dec: Init reserved bytes to zero before ioctl call

[Andriy Gelman]

On Thu, 12. Mar 22:40, Andriy Gelman wrote:
> On Sun, 08. Mar 11:49, Andriy Gelman wrote:
> > From: Andriy Gelman <andriy.gelman at gmail.com>
> > 
> > struct v4l2_selection contains reserved bytes which should be set to
> > zero before the ioctl call.
> > 
> > Fixes valgrind error:
> > Syscall param ioctl(VKI_V4L2_S_SELECTION) points to uninitialised byte(s)
> > 
> > Signed-off-by: Andriy Gelman <andriy.gelman at gmail.com>
> > ---
> >  libavcodec/v4l2_m2m_dec.c | 2 +-
> >  1 file changed, 1 insertion(+), 1 deletion(-)
> > 
> > diff --git a/libavcodec/v4l2_m2m_dec.c b/libavcodec/v4l2_m2m_dec.c
> > index d666edffe46..c5ee86b9935 100644
> > --- a/libavcodec/v4l2_m2m_dec.c
> > +++ b/libavcodec/v4l2_m2m_dec.c
> > @@ -39,7 +39,7 @@ static int v4l2_try_start(AVCodecContext *avctx)
> >      V4L2m2mContext *s = ((V4L2m2mPriv*)avctx->priv_data)->context;
> >      V4L2Context *const capture = &s->capture;
> >      V4L2Context *const output = &s->output;
> > -    struct v4l2_selection selection;
> > +    struct v4l2_selection selection = { 0 };
> >      int ret;
> >  
> >      /* 1. start the output process */
> > -- 
> > 2.25.0
> > 
> 
> ping
> 

ping

-- 
Andriy