On Wed, Apr 11, 2018 at 11:42:41AM -0300, Marcelo Ricardo Leitner wrote: > On Wed, Apr 11, 2018 at 08:58:05PM +0800, Xin Long wrote: > > pf->cmp_addr() is called before binding a v6 address to the sock. It > > should not check ports, like in sctp_inet_cmp_addr. > > > > But sctp_inet6_cmp_addr checks the addr by invoking af(6)->cmp_addr, > > sctp_v6_cmp_addr where it also compares the ports. > > > > This would cause that setsockopt(SCTP_SOCKOPT_BINDX_ADD) could bind > > multiple duplicated IPv6 addresses after Commit 40b4f0fd74e4 ("sctp: > > lack the check for ports in sctp_v6_cmp_addr"). > > > > This patch is to remove af->cmp_addr called in sctp_inet6_cmp_addr, > > but do the proper check for both v6 addrs and v4mapped addrs. > > > > Fixes: 40b4f0fd74e4 ("sctp: lack the check for ports in sctp_v6_cmp_addr") > > Reported-by: Jianwen Ji <j...@redhat.com> > > Signed-off-by: Xin Long <lucien....@gmail.com> > > Acked-by: Marcelo Ricardo Leitner <marcelo.leit...@gmail.com>
Sorry, I take this back.