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rxrpc: Fix send in rxrpc_send_data_packet()

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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>
This commit is contained in:
David Howells 2018-02-22 14:38:14 +00:00 committed by David S. Miller
parent 370c10522e
commit 93c62c45ed
1 changed files with 1 additions and 1 deletions
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net/rxrpc/output.c
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@ -445,7 +445,7 @@ int rxrpc_send_data_packet(struct rxrpc_call *call, struct sk_buff *skb,
(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,