[IPVS]: Make sure ip_vs_ftp ports are valid
I'm not entirely sure what happens in the case of a valid port,
at best it'll be silently ignored. This patch ignores them a little
more verbosely.
Signed-Off-By: Simon Horman <horms@verge.net.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/net/ipv4/ipvs/ip_vs_ftp.c b/net/ipv4/ipvs/ip_vs_ftp.c
index 347a66c..f0c553c 100644
--- a/net/ipv4/ipvs/ip_vs_ftp.c
+++ b/net/ipv4/ipvs/ip_vs_ftp.c
@@ -373,6 +373,12 @@
for (i=0; i<IP_VS_APP_MAX_PORTS; i++) {
if (!ports[i])
continue;
+ if (ports[i] < 0 || ports[i] > 0xffff) {
+ IP_VS_WARNING("ip_vs_ftp: Ignoring invalid "
+ "configuration port[%d] = %d\n",
+ i, ports[i]);
+ continue;
+ }
ret = register_ip_vs_app_inc(app, app->protocol, ports[i]);
if (ret)
break;