netdev - [PATCH] tipc: set sk_err correctly when connection fails

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]

Date:	Fri, 23 Aug 2013 15:56:40 +0200
From:	<erik.hugne@...csson.com>
To:	<netdev@...r.kernel.org>, <jon.maloy@...csson.com>,
	<paul.gortmaker@...driver.com>
CC:	<ying.xue@...driver.com>, <tipc-discussion@...ts.sourceforge.net>,
	<nhan.tt.vo@...tech.com.au>, Erik Hugne <erik.hugne@...csson.com>
Subject: [PATCH] tipc: set sk_err correctly when connection fails

From: Erik Hugne <erik.hugne@...csson.com>

This fixes a problem when connect() fails and returns the error
code as a positive value, whereas errno itself is never set. The
reason is that error codes set in sk_err should never be inverted.

Signed-off-by: Erik Hugne <erik.hugne@...csson.com>
---
 net/tipc/socket.c |    4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/net/tipc/socket.c b/net/tipc/socket.c
index ce8249c..6cc7ddd 100644
--- a/net/tipc/socket.c
+++ b/net/tipc/socket.c
@@ -1257,7 +1257,7 @@ static u32 filter_connect(struct tipc_sock *tsock, struct sk_buff **buf)
 		/* Accept only ACK or NACK message */
 		if (unlikely(msg_errcode(msg))) {
 			sock->state = SS_DISCONNECTING;
-			sk->sk_err = -ECONNREFUSED;
+			sk->sk_err = ECONNREFUSED;
 			retval = TIPC_OK;
 			break;
 		}
@@ -1268,7 +1268,7 @@ static u32 filter_connect(struct tipc_sock *tsock, struct sk_buff **buf)
 		res = auto_connect(sock, msg);
 		if (res) {
 			sock->state = SS_DISCONNECTING;
-			sk->sk_err = res;
+			sk->sk_err = -res;
 			retval = TIPC_OK;
 			break;
 		}
-- 
1.7.9.5

--
To unsubscribe from this list: send the line "unsubscribe netdev" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html