android_kernel_oneplus_msm8998/net/sctp
Xin Long 90edf68180 sctp: not bind the socket in sctp_connect
commit 9b6c08878e23adb7cc84bdca94d8a944b03f099e upstream.

Now when sctp_connect() is called with a wrong sa_family, it binds
to a port but doesn't set bp->port, then sctp_get_af_specific will
return NULL and sctp_connect() returns -EINVAL.

Then if sctp_bind() is called to bind to another port, the last
port it has bound will leak due to bp->port is NULL by then.

sctp_connect() doesn't need to bind ports, as later __sctp_connect
will do it if bp->port is NULL. So remove it from sctp_connect().
While at it, remove the unnecessary sockaddr.sa_family len check
as it's already done in sctp_inet_connect.

Fixes: 644fbdeacf1d ("sctp: fix the issue that flags are ignored when using kernel_connect")
Reported-by: syzbot+079bf326b38072f849d9@syzkaller.appspotmail.com
Signed-off-by: Xin Long <lucien.xin@gmail.com>
Acked-by: Marcelo Ricardo Leitner <marcelo.leitner@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-11-06 12:09:25 +01:00
..
associola.c sctp: clear the transport of some out_chunk_list chunks in sctp_assoc_rm_peer 2018-12-01 09:46:33 +01:00
auth.c
bind_addr.c
chunk.c
debug.c net: sctp: fix array overrun read on sctp_timer_tbl 2017-12-09 18:42:42 +01:00
endpointola.c sctp: change to hold sk after auth shkey is created successfully 2019-07-10 09:56:36 +02:00
input.c sctp: add the missing sock_owned_by_user check in sctp_icmp_redirect 2017-11-18 11:11:05 +01:00
inqueue.c sctp: fix the issue that the cookie-ack with auth can't get processed 2018-05-26 08:48:48 +02:00
ipv6.c sctp: fix the issue that flags are ignored when using kernel_connect 2019-11-06 12:09:25 +01:00
Kconfig
Makefile
objcnt.c
output.c
outqueue.c
primitive.c
probe.c
proc.c
protocol.c sctp: fix the issue that flags are ignored when using kernel_connect 2019-11-06 12:09:25 +01:00
sm_make_chunk.c fixup: sctp: verify size of a new chunk in _sctp_make_chunk() 2018-03-18 11:17:54 +01:00
sm_sideeffect.c sctp: use transport pf_retrans in sctp_do_8_2_transport_strike 2019-09-21 07:12:40 +02:00
sm_statefuns.c sctp: delay the authentication for the duplicated cookie-echo chunk 2018-05-26 08:48:49 +02:00
sm_statetable.c
socket.c sctp: not bind the socket in sctp_connect 2019-11-06 12:09:25 +01:00
ssnmap.c
sysctl.c
transport.c
tsnmap.c
ulpevent.c
ulpqueue.c