Xin Long ecf938fe7d sctp: set flow sport from saddr only when it's 0 ... Now sctp_transport_pmtu() passes transport->saddr into .get_dst() to set flow sport from 'saddr'. However, transport->saddr is set only when transport->dst exists in sctp_transport_route(). If sctp_transport_pmtu() is called without transport->saddr set, like when transport->dst doesn't exists, the flow sport will be set to 0 from transport->saddr, which will cause a wrong route to be got. Commit 6e91b578bf ("sctp: re-use sctp_transport_pmtu in sctp_transport_route") made the issue be triggered more easily since sctp_transport_pmtu() would be called in sctp_transport_route() after that. In gerneral, fl4->fl4_sport should always be set to htons(asoc->base.bind_addr.port), unless transport->asoc doesn't exist in sctp_v4/6_get_dst(), which is the case: sctp_ootb_pkt_new() -> sctp_transport_route() For that, we can simply handle it by setting flow sport from saddr only when it's 0 in sctp_v4/6_get_dst(). Fixes: 6e91b578bf ("sctp: re-use sctp_transport_pmtu in sctp_transport_route") Reported-by: Ying Xu <yinxu@redhat.com> Signed-off-by: Xin Long <lucien.xin@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>		2019-01-24 18:13:57 -08:00
..
associola.c	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net	2018-12-09 21:43:31 -08:00
auth.c
bind_addr.c	sctp: add sock_reuseport for the sock in __sctp_hash_endpoint	2018-11-12 09:09:51 -08:00
chunk.c	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net	2018-12-09 21:43:31 -08:00
debug.c
diag.c
endpointola.c
input.c	sctp: add sock_reuseport for the sock in __sctp_hash_endpoint	2018-11-12 09:09:51 -08:00
inqueue.c
ipv6.c	sctp: set flow sport from saddr only when it's 0	2019-01-24 18:13:57 -08:00
Kconfig
Makefile
objcnt.c
offload.c
output.c	sctp: increase sk_wmem_alloc when head->truesize is increased	2018-11-27 15:42:31 -08:00
outqueue.c
primitive.c	sctp: rename enum sctp_event to sctp_event_type	2018-11-19 12:25:43 -08:00
proc.c
protocol.c	sctp: set flow sport from saddr only when it's 0	2019-01-24 18:13:57 -08:00
sm_make_chunk.c	sctp: set chunk transport correctly when it's a new asoc	2019-01-24 18:13:57 -08:00
sm_sideeffect.c	sctp: rename enum sctp_event to sctp_event_type	2018-11-19 12:25:43 -08:00
sm_statefuns.c
sm_statetable.c	sctp: rename enum sctp_event to sctp_event_type	2018-11-19 12:25:43 -08:00
socket.c	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net	2018-12-09 21:43:31 -08:00
stream.c	sctp: improve the events for sctp stream adding	2019-01-24 18:13:57 -08:00
stream_interleave.c	sctp: add subscribe per asoc	2018-11-19 12:25:43 -08:00
stream_sched.c
stream_sched_prio.c
stream_sched_rr.c
sysctl.c
transport.c
tsnmap.c
ulpevent.c
ulpqueue.c	sctp: add subscribe per asoc	2018-11-19 12:25:43 -08:00