From: Taehee Yoo <ap420073@gmail.com>
To: davem@davemloft.net, pablo@netfilter.org, laforge@gnumonks.org,
osmocom-net-gprs@lists.osmocom.org, netdev@vger.kernel.org
Cc: ap420073@gmail.com
Subject: [PATCH net 6/6] gtp: add missing gtp_encap_disable_sock() in gtp_encap_enable()
Date: Wed, 3 Jul 2019 00:24:04 +0900 [thread overview]
Message-ID: <20190702152404.23210-1-ap420073@gmail.com> (raw)
If an invalid role is sent from user space, gtp_encap_enable() will fail.
Then, it should call gtp_encap_disable_sock() but current code doesn't.
It makes memory leak.
Fixes: 91ed81f9abc7 ("gtp: support SGSN-side tunnels")
Signed-off-by: Taehee Yoo <ap420073@gmail.com>
---
drivers/net/gtp.c | 7 ++++++-
1 file changed, 6 insertions(+), 1 deletion(-)
diff --git a/drivers/net/gtp.c b/drivers/net/gtp.c
index b3ccac54e204..ecfe26215935 100644
--- a/drivers/net/gtp.c
+++ b/drivers/net/gtp.c
@@ -857,8 +857,13 @@ static int gtp_encap_enable(struct gtp_dev *gtp, struct nlattr *data[])
if (data[IFLA_GTP_ROLE]) {
role = nla_get_u32(data[IFLA_GTP_ROLE]);
- if (role > GTP_ROLE_SGSN)
+ if (role > GTP_ROLE_SGSN) {
+ if (sk0)
+ gtp_encap_disable_sock(sk0);
+ if (sk1u)
+ gtp_encap_disable_sock(sk1u);
return -EINVAL;
+ }
}
gtp->sk0 = sk0;
--
2.17.1
reply other threads:[~2019-07-02 15:24 UTC|newest]
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