diff options
| author | David Howells <dhowells@redhat.com> | 2024-02-02 15:19:15 +0000 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2024-02-16 19:06:27 +0100 |
| commit | cf6b97e1830eed623ae9484d4ff2bb252a99f1b6 (patch) | |
| tree | 9bcaede6dd8823a7bd877e820272fd12b0b2d6ed /net | |
| parent | 05a4d0e16615b315d278ff4868c98b2d479e65b7 (diff) | |
rxrpc: Fix response to PING RESPONSE ACKs to a dead call
[ Upstream commit 6f769f22822aa4124b556339781b04d810f0e038 ]
Stop rxrpc from sending a DUP ACK in response to a PING RESPONSE ACK on a
dead call. We may have initiated the ping but the call may have beaten the
response to completion.
Fixes: 18bfeba50dfd ("rxrpc: Perform terminal call ACK/ABORT retransmission from conn processor")
Signed-off-by: David Howells <dhowells@redhat.com>
cc: Marc Dionne <marc.dionne@auristor.com>
cc: "David S. Miller" <davem@davemloft.net>
cc: Eric Dumazet <edumazet@google.com>
cc: Jakub Kicinski <kuba@kernel.org>
cc: Paolo Abeni <pabeni@redhat.com>
cc: linux-afs@lists.infradead.org
cc: netdev@vger.kernel.org
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'net')
| -rw-r--r-- | net/rxrpc/conn_event.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/net/rxrpc/conn_event.c b/net/rxrpc/conn_event.c index aab069701398..5d91ef562ff7 100644 --- a/net/rxrpc/conn_event.c +++ b/net/rxrpc/conn_event.c @@ -41,6 +41,14 @@ static void rxrpc_conn_retransmit_call(struct rxrpc_connection *conn, _enter("%d", conn->debug_id); + if (sp && sp->hdr.type == RXRPC_PACKET_TYPE_ACK) { + if (skb_copy_bits(skb, sizeof(struct rxrpc_wire_header), + &pkt.ack, sizeof(pkt.ack)) < 0) + return; + if (pkt.ack.reason == RXRPC_ACK_PING_RESPONSE) + return; + } + chan = &conn->channels[channel]; /* If the last call got moved on whilst we were waiting to run, just |