Re: [PATCH] sctp: copy zeroed stats to user in sctp_getsockopt_pr_streamstatus() when !streamoute

[Xin Long]

On Thu, Sep 24, 2026 at 6:14 AM Paolo Abeni <pabeni@xxxxxxxxxx> wrote:
>
> On 9/19/26 23:36, Hui Peng wrote:
> > @@ -7589,6 +7585,8 @@ static int sctp_getsockopt_pr_streamstatus(struct sock *sk, int len,
> >                       streamoute->abandoned_sent[__SCTP_PR_INDEX(policy)];
> >       }
> >
> > +     retval = 0;
> > +
>
> AFAICS the above is not needed; retval will be zeroed later, if in case of
> no errors.
Agree.

>
> Also this is IMHO net-next material with no fixes tag.
>
If users call getsockopt(SCTP_PR_STREAM_STATUS, &param) without zeroing
param, the kernel should still initialize the output fields when the call
succeeds (return 0).

So we may think of it as a Fix.

Thanks.