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rxrpc: Fix send in rxrpc_send_data_packet() 

[ Upstream commit 93c62c45ed ]

All the kernel_sendmsg() calls in rxrpc_send_data_packet() need to send
both parts of the iov[] buffer, but one of them does not.  Fix it so that
it does.

Without this, short IPv6 rxrpc DATA packets may be seen that have the rxrpc
header included, but no payload.

Fixes: 5a924b8951 ("rxrpc: Don't store the rxrpc header in the Tx queue sk_buffs")
Reported-by: Marc Dionne <marc.dionne@auristor.com>
Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
David Howells 2018-02-22 14:38:14 +00:00 committed by Greg Kroah-Hartman
parent 17634603d4
commit f0a04a0e1a
1 changed files with 1 additions and 1 deletions
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2
net/rxrpc/output.c
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@ -395,7 +395,7 @@ send_fragmentable:
(char *)&opt, sizeof(opt));
if (ret == 0) {
ret = kernel_sendmsg(conn->params.local->socket, &msg,
iov, 1, iov[0].iov_len);
iov, 2, len);
opt = IPV6_PMTUDISC_DO;
kernel_setsockopt(conn->params.local->socket,