netdev - [net 1/1] tipc: fix memory leak in tipc_accept_from

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [thread-next>] [day] [month] [year] [list]

Message-ID: <1512421220-16773-1-git-send-email-jon.maloy@ericsson.com>
Date:   Mon, 4 Dec 2017 22:00:20 +0100
From:   Jon Maloy <jon.maloy@...csson.com>
To:     <davem@...emloft.net>, <netdev@...r.kernel.org>
CC:     <mohan.krishna.ghanta.krishnamurthy@...csson.com>,
        <tung.q.nguyen@...tech.com.au>, <hoang.h.le@...tech.com.au>,
        <jon.maloy@...csson.com>, <canh.d.luu@...tech.com.au>,
        <ying.xue@...driver.com>, <tipc-discussion@...ts.sourceforge.net>
Subject: [net  1/1] tipc: fix memory leak in tipc_accept_from_sock()

When the function tipc_accept_from_sock() fails to create an instance of
struct tipc_subscriber it omits to free the already created instance of
struct tipc_conn instance before it returns.

We fix that with this commit.

Reported-by: David S. Miller <davem@...emloft.net>
Signed-off-by: Jon Maloy <jon.maloy@...csson.com>
---
 net/tipc/server.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/net/tipc/server.c b/net/tipc/server.c
index acaef80..bcede09 100644
--- a/net/tipc/server.c
+++ b/net/tipc/server.c
@@ -314,6 +314,7 @@ static int tipc_accept_from_sock(struct tipc_conn *con)
 	newcon->usr_data = s->tipc_conn_new(newcon->conid);
 	if (!newcon->usr_data) {
 		sock_release(newsock);
+		conn_put(newcon);
 		return -ENOMEM;
 	}
 
-- 
2.1.4