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Commit 185c88b1 authored by Pan Bian's avatar Pan Bian Committed by Greg Kroah-Hartman
Browse files

tipc: check return value of nlmsg_new 




[ Upstream commit 78302fd405769c9a9379e9adda119d533dce2eed ]

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: default avatarPan Bian <bianpan2016@163.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
Signed-off-by: default avatarSasha Levin <alexander.levin@microsoft.com>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent abff7f51

net/tipc/node.c

+2 −0
Original line number Diff line number Diff line
@@ -2094,6 +2094,8 @@ 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;