On Mon, Nov 06, 2017 at 02:39:56PM +0100, Petr Malat wrote: > A call to > getsockopt(sk, SCTP_GET_LOCAL_ADDRS, opt, &optlen) > returns a wrong value in optlen, because it doesn't account struct sctp_getaddrs > preceding the actual addresses. > > Signed-off-by: Petr Malat <petr.malat.ext@xxxxxxxxx> > --- > net/sctp/socket.c | 1 + > 1 file changed, 1 insertion(+) > > diff --git a/net/sctp/socket.c b/net/sctp/socket.c > index 6f45d17..9082269 100644 > --- a/net/sctp/socket.c > +++ b/net/sctp/socket.c > @@ -5560,6 +5560,7 @@ static int sctp_getsockopt_local_addrs(struct sock *sk, int len, > err = -EFAULT; > goto out; > } > + bytes_copied += offsetof(struct sctp_getaddrs, addrs); > if (put_user(bytes_copied, optlen)) > err = -EFAULT; Acked-by: Neil Horman <nhorman@xxxxxxxxxxxxx> > out: > -- > 1.7.11.3 > > -- > To unsubscribe from this list: send the line "unsubscribe linux-sctp" in > the body of a message to majordomo@xxxxxxxxxxxxxxx > More majordomo info at http://vger.kernel.org/majordomo-info.html > -- To unsubscribe from this list: send the line "unsubscribe linux-sctp" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
