[Cluster-devel] Cluster Project branch, STABLE2, updated. cluster-2.02.00-20-gce3caa5

[ccaulfield@sourceware.org <ccaulfield@sourceware.org>]

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       via  ce3caa50bca9ae837f50ab7a5f7602b9a1a1401f (commit)
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- Log -----------------------------------------------------------------
commit ce3caa50bca9ae837f50ab7a5f7602b9a1a1401f
Author: Christine Caulfield <ccaulfie@redhat.com>
Date:   Wed Mar 19 11:37:58 2008 +0000

    [CMAN] valid port number & don't use it before validation
    
    cman_send_data didn't validate the port number. This was
    not a great problem, but it was slightly silly.
    
    cman_start_recv_data used the port number before validation
    in a debug message, this could crash the server if debug
    is enabled and a very large port number was passed in.
    
    Signed-off-by: Christine Caulfield <ccaulfie@redhat.com>

-----------------------------------------------------------------------

Summary of changes:
 cman/daemon/commands.c |    2 +-
 cman/daemon/daemon.c   |    6 ++++++
 2 files changed, 7 insertions(+), 1 deletions(-)

diff --git a/cman/daemon/commands.c b/cman/daemon/commands.c
index 4696047..b6d796a 100644
--- a/cman/daemon/commands.c
+++ b/cman/daemon/commands.c
@@ -809,7 +809,7 @@ static int do_cmd_bind(struct connection *con, char *cmdbuf)
 
 	memcpy(&port, cmdbuf, sizeof(int));
 
-	P_MEMB("requested bind to port %d, port_con = %p (us=%p)\n", port, port_array[port], con);
+	P_MEMB("requested bind to port %d, (us=%p)\n", port, con);
 
 	if (port == 0 || port > 255)
 		return -EINVAL;
diff --git a/cman/daemon/daemon.c b/cman/daemon/daemon.c
index 1e51a38..eded81e 100644
--- a/cman/daemon/daemon.c
+++ b/cman/daemon/daemon.c
@@ -271,10 +271,16 @@ static int process_client(poll_handle handle, int fd, int revent, void *data)
 
 			buf += sizeof(struct sock_data_header);
 
+			if (dmsg->port > 255) {
+				send_status_return(con, msg->command, -EINVAL);
+				return 0;
+			}
+
 			if (dmsg->port)
 				port = dmsg->port;
 			else
 				port = con->port;
+
 			ret = comms_send_message(buf, msg->length - sizeof(struct sock_data_header),
 						 port, con->port,
 						 dmsg->nodeid,


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