From mboxrd@z Thu Jan 1 00:00:00 1970 From: Pan Bian Subject: [net 1/1] team: fix memory leaks Date: Mon, 24 Apr 2017 17:36:52 +0800 Message-ID: <1493026612-12383-1-git-send-email-bianpan2016@163.com> Cc: linux-kernel@vger.kernel.org, Pan Bian To: Jiri Pirko , netdev@vger.kernel.org Return-path: Received: from m12-18.163.com ([220.181.12.18]:48831 "EHLO m12-18.163.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1168035AbdDXJhc (ORCPT ); Mon, 24 Apr 2017 05:37:32 -0400 Sender: netdev-owner@vger.kernel.org List-ID: In functions team_nl_send_port_list_get() and team_nl_send_options_get(), pointer skb keeps the return value of nlmsg_new(). When the call to genlmsg_put() fails, the memory is not freed(). This will result in memory leak bugs. Fixes: 9b00cf2d1024 ("team: implement multipart netlink messages for options transfers") Signed-off-by: Pan Bian --- drivers/net/team/team.c | 8 ++++++-- 1 file changed, 6 insertions(+), 2 deletions(-) diff --git a/drivers/net/team/team.c b/drivers/net/team/team.c index f8c81f1..85c0124 100644 --- a/drivers/net/team/team.c +++ b/drivers/net/team/team.c @@ -2361,8 +2361,10 @@ static int team_nl_send_options_get(struct team *team, u32 portid, u32 seq, hdr = genlmsg_put(skb, portid, seq, &team_nl_family, flags | NLM_F_MULTI, TEAM_CMD_OPTIONS_GET); - if (!hdr) + if (!hdr) { + nlmsg_free(skb); return -EMSGSIZE; + } if (nla_put_u32(skb, TEAM_ATTR_TEAM_IFINDEX, team->dev->ifindex)) goto nla_put_failure; @@ -2634,8 +2636,10 @@ static int team_nl_send_port_list_get(struct team *team, u32 portid, u32 seq, hdr = genlmsg_put(skb, portid, seq, &team_nl_family, flags | NLM_F_MULTI, TEAM_CMD_PORT_LIST_GET); - if (!hdr) + if (!hdr) { + nlmsg_free(skb); return -EMSGSIZE; + } if (nla_put_u32(skb, TEAM_ATTR_TEAM_IFINDEX, team->dev->ifindex)) goto nla_put_failure; -- 1.9.1