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authorPan Bian <bianpan2016@163.com>2017-04-23 15:09:19 +0800
committerDavid S. Miller <davem@davemloft.net>2017-04-24 15:51:30 -0400
commit78302fd405769c9a9379e9adda119d533dce2eed (patch)
tree78cc4f053d8cac193e683af4d6e2e7dca7b54fd2
parenta50fe0ffd76fbd17af36209a16caf0b8ad901fef (diff)
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 <bianpan2016@163.com> Signed-off-by: David S. Miller <davem@davemloft.net>
-rw-r--r--net/tipc/node.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/net/tipc/node.c b/net/tipc/node.c
index 01b1f077603e..aeef8011ac7d 100644
--- 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;