On Mon, Sep 09, 2019 at 03:33:29PM +0800, Xin Long wrote:
> This issue causes SCTP_PEER_ADDR_THLDS sockopt not to be able to dump
> a transport thresholds info.
>
> Fix it by adding 'goto' put_user in sctp_getsockopt_paddr_thresholds.
>
> Fixes: 8add543e369d ("sctp: add SCTP_FUTURE_ASSOC for SCTP_PEER_ADDR_THLDS sockopt")
> Signed-off-by: Xin Long <lucien.xin@xxxxxxxxx>
> ---
> net/sctp/socket.c | 3 ++-
> 1 file changed, 2 insertions(+), 1 deletion(-)
>
> diff --git a/net/sctp/socket.c b/net/sctp/socket.c
> index 9d1f83b..ad87518 100644
> --- a/net/sctp/socket.c
> +++ b/net/sctp/socket.c
> @@ -7173,7 +7173,7 @@ static int sctp_getsockopt_paddr_thresholds(struct sock *sk,
> val.spt_pathmaxrxt = trans->pathmaxrxt;
> val.spt_pathpfthld = trans->pf_retrans;
>
> - return 0;
> + goto out;
> }
>
> asoc = sctp_id2assoc(sk, val.spt_assoc_id);
> @@ -7191,6 +7191,7 @@ static int sctp_getsockopt_paddr_thresholds(struct sock *sk,
> val.spt_pathmaxrxt = sp->pathmaxrxt;
> }
>
> +out:
> if (put_user(len, optlen) || copy_to_user(optval, &val, len))
> return -EFAULT;
>
> --
> 2.1.0
>
>
Acked-by: Neil Horman <nhorman@xxxxxxxxxxxxx>
