From: Hoang Le <hoang.h.le@dektech.com.au>
To: tipc-discussion@lists.sourceforge.net, jon.maloy@ericsson.com,
maloy@donjonn.com, ying.xue@windriver.com,
netdev@vger.kernel.org
Subject: [net] tipc: fix skb may be leaky in tipc_link_input
Date: Mon, 11 Feb 2019 09:18:28 +0700 [thread overview]
Message-ID: <20190211021828.6145-1-hoang.h.le@dektech.com.au> (raw)
When we free skb at tipc_data_input, we return a 'false' boolean.
Then, skb passed to subcalling tipc_link_input in tipc_link_rcv,
<snip>
1303 int tipc_link_rcv:
...
1354 if (!tipc_data_input(l, skb, l->inputq))
1355 rc |= tipc_link_input(l, skb, l->inputq);
</snip>
Fix it by simple changing to a 'true' boolean when skb is being free-ed.
Then, tipc_link_rcv will bypassed to subcalling tipc_link_input as above
condition.
Acked-by: Ying Xue <ying.xue@windriver.com>
Acked-by: Jon Maloy <maloy@donjonn.com>
Signed-off-by: Hoang Le <hoang.h.le@dektech.com.au>
---
net/tipc/link.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/net/tipc/link.c b/net/tipc/link.c
index ac306d17f8ad..d31f83a9a2c5 100644
--- a/net/tipc/link.c
+++ b/net/tipc/link.c
@@ -1145,7 +1145,7 @@ static bool tipc_data_input(struct tipc_link *l, struct sk_buff *skb,
default:
pr_warn("Dropping received illegal msg type\n");
kfree_skb(skb);
- return false;
+ return true;
};
}
--
2.17.1
next reply other threads:[~2019-02-11 2:30 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-02-11 2:18 Hoang Le [this message]
2019-02-12 2:36 ` [net] tipc: fix skb may be leaky in tipc_link_input David Miller
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