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rxrpc: Fix oops on incoming call to serviceless endpoint 

If an call comes in to a local endpoint that isn't listening for any
incoming calls at the moment, an oops will happen.  We need to check that
the local endpoint's service pointer isn't NULL before we dereference it.

Signed-off-by: David Howells <dhowells@redhat.com>
This commit is contained in:
David Howells 2016-10-06 08:11:49 +01:00
parent 19c0dbd540
commit 7212a57e8e
1 changed files with 1 additions and 1 deletions
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2
net/rxrpc/call_accept.c
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@ -337,7 +337,7 @@ struct rxrpc_call *rxrpc_new_incoming_call(struct rxrpc_local *local,
/* Get the socket providing the service */
rx = rcu_dereference(local->service);
if (service_id == rx->srx.srx_service)
if (rx && service_id == rx->srx.srx_service)
goto found_service;
trace_rxrpc_abort("INV", sp->hdr.cid, sp->hdr.callNumber, sp->hdr.seq,