Merge 4.4.71 into android-4.4

Changes in 4.4.71
	sparc: Fix -Wstringop-overflow warning
	dccp/tcp: do not inherit mc_list from parent
	ipv6/dccp: do not inherit ipv6_mc_list from parent
	s390/qeth: handle sysfs error during initialization
	s390/qeth: unbreak OSM and OSN support
	s390/qeth: avoid null pointer dereference on OSN
	tcp: avoid fragmenting peculiar skbs in SACK
	sctp: fix src address selection if using secondary addresses for ipv6
	sctp: do not inherit ipv6_{mc|ac|fl}_list from parent
	tcp: eliminate negative reordering in tcp_clean_rtx_queue
	net: Improve handling of failures on link and route dumps
	ipv6: Prevent overrun when parsing v6 header options
	ipv6: Check ip6_find_1stfragopt() return value properly.
	bridge: netlink: check vlan_default_pvid range
	qmi_wwan: add another Lenovo EM74xx device ID
	bridge: start hello_timer when enabling KERNEL_STP in br_stp_start
	ipv6: fix out of bound writes in __ip6_append_data()
	be2net: Fix offload features for Q-in-Q packets
	virtio-net: enable TSO/checksum offloads for Q-in-Q vlans
	tcp: avoid fastopen API to be used on AF_UNSPEC
	sctp: fix ICMP processing if skb is non-linear
	ipv4: add reference counting to metrics
	netem: fix skb_orphan_partial()
	net: phy: marvell: Limit errata to 88m1101
	vlan: Fix tcp checksum offloads in Q-in-Q vlans
	i2c: i2c-tiny-usb: fix buffer not being DMA capable
	mmc: sdhci-iproc: suppress spurious interrupt with Multiblock read
	HID: wacom: Have wacom_tpc_irq guard against possible NULL dereference
	scsi: mpt3sas: Force request partial completion alignment
	drm/radeon/ci: disable mclk switching for high refresh rates (v2)
	drm/radeon: Unbreak HPD handling for r600+
	pcmcia: remove left-over %Z format
	ALSA: hda - apply STAC_9200_DELL_M22 quirk for Dell Latitude D430
	slub/memcg: cure the brainless abuse of sysfs attributes
	drm/gma500/psb: Actually use VBT mode when it is found
	mm/migrate: fix refcount handling when !hugepage_migration_supported()
	mlock: fix mlock count can not decrease in race condition
	xfs: Fix missed holes in SEEK_HOLE implementation
	xfs: fix off-by-one on max nr_pages in xfs_find_get_desired_pgoff()
	xfs: fix over-copying of getbmap parameters from userspace
	xfs: handle array index overrun in xfs_dir2_leaf_readbuf()
	xfs: prevent multi-fsb dir readahead from reading random blocks
	xfs: fix up quotacheck buffer list error handling
	xfs: support ability to wait on new inodes
	xfs: update ag iterator to support wait on new inodes
	xfs: wait on new inodes during quotaoff dquot release
	xfs: fix indlen accounting error on partial delalloc conversion
	xfs: bad assertion for delalloc an extent that start at i_size
	xfs: fix unaligned access in xfs_btree_visit_blocks
	xfs: in _attrlist_by_handle, copy the cursor back to userspace
	xfs: only return -errno or success from attr ->put_listent
	Linux 4.4.71

Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>

1 files changed, 5 insertions, 2 deletions

diff --git a/net/ipv4/tcp.c b/net/ipv4/tcp.c
index 44181ba2d6bf..c31eff75732c 100644
--- a/net/ipv4/tcp.c
+++ b/net/ipv4/tcp.c
@@ -1071,9 +1071,12 @@ static int tcp_sendmsg_fastopen(struct sock *sk, struct msghdr *msg,
 				int *copied, size_t size)
 {
 	struct tcp_sock *tp = tcp_sk(sk);
+	struct sockaddr *uaddr = msg->msg_name;
 	int err, flags;
 
-	if (!(sysctl_tcp_fastopen & TFO_CLIENT_ENABLE))
+	if (!(sysctl_tcp_fastopen & TFO_CLIENT_ENABLE) ||
+	    (uaddr && msg->msg_namelen >= sizeof(uaddr->sa_family) &&
+	     uaddr->sa_family == AF_UNSPEC))
 		return -EOPNOTSUPP;
 	if (tp->fastopen_req)
 		return -EALREADY; /* Another Fast Open is in progress */
@@ -1086,7 +1089,7 @@ static int tcp_sendmsg_fastopen(struct sock *sk, struct msghdr *msg,
 	tp->fastopen_req->size = size;
 
 	flags = (msg->msg_flags & MSG_DONTWAIT) ? O_NONBLOCK : 0;
-	err = __inet_stream_connect(sk->sk_socket, msg->msg_name,
+	err = __inet_stream_connect(sk->sk_socket, uaddr,
 				    msg->msg_namelen, flags);
 	*copied = tp->fastopen_req->copied;
 	tcp_free_fastopen_req(tp);