tipc: check return value of nlmsg_new

Function nlmsg_new() will return a NULL pointer if there is no enough memory, and its return value should be checked before it is used. However, in function tipc_nl_node_get_monitor(), the validation of the return value of function nlmsg_new() is missed. This patch fixes the bug. Signed-off-by: Pan Bian <[email protected]> Signed-off-by: David S. Miller <[email protected]>
opendata26 · Apr 24, 2017 · 78302fd · 78302fd
1 parent a50fe0f
commit 78302fd
Showing 1 changed file with 2 additions and 0 deletions.
diff --git a/net/tipc/node.c b/net/tipc/node.c
@@ -2098,6 +2098,8 @@ int tipc_nl_node_get_monitor(struct sk_buff *skb, struct genl_info *info)
 	int err;
 
 	msg.skb = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL);
+	if (!msg.skb)
+		return -ENOMEM;
 	msg.portid = info->snd_portid;
 	msg.seq = info->snd_seq;