From: Pan Bian <bianpan2016@163.com>
To: Jiri Pirko <jiri@resnulli.us>, netdev@vger.kernel.org
Cc: linux-kernel@vger.kernel.org, Pan Bian <bianpan2016@163.com>
Subject: [PATCH 2/2] net: team: fix memory leak in team_nl_send_options_get
Date: Mon, 24 Apr 2017 15:04:55 +0800 [thread overview]
Message-ID: <1493017495-3578-1-git-send-email-bianpan2016@163.com> (raw)
In function team_nl_send_options_get(), pointer skb keeps the return
value of function nlmsg_new(). When the call to genlmsg_put() fails, the
control flow directly returns and does not free skb. This will result in
a memory leak bug. This patch fixes it.
Fixes: 8ea7fd0d8792 ("team: fix memory leak")
Signed-off-by: Pan Bian <bianpan2016@163.com>
---
drivers/net/team/team.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/drivers/net/team/team.c b/drivers/net/team/team.c
index dd3a2e9..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;
--
1.9.1
next reply other threads:[~2017-04-24 7:05 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-04-24 7:04 Pan Bian [this message]
2017-04-24 7:11 ` [PATCH 2/2] net: team: fix memory leak in team_nl_send_options_get Jiri Pirko
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