netdev - [PATCH] econet: Do the correct cleanup after an unprivileged SIOCSIFADDR.

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: <1291589152-4640-1-git-send-email-nelhage@ksplice.com>
Date:	Sun,  5 Dec 2010 17:45:52 -0500
From:	Nelson Elhage <nelhage@...lice.com>
To:	"David S. Miller" <davem@...emloft.net>,
	Phil Blundell <philb@....org>
Cc:	netdev@...r.kernel.org, Nelson Elhage <nelhage@...lice.com>,
	stable@...nel.org
Subject: [PATCH] econet: Do the correct cleanup after an unprivileged SIOCSIFADDR.

We need to drop the mutex and do a dev_put, so set an error code and break like
the other paths, instead of returning directly.

Cc: stable@...nel.org
Signed-off-by: Nelson Elhage <nelhage@...lice.com>
---
 net/econet/af_econet.c |    6 ++++--
 1 files changed, 4 insertions(+), 2 deletions(-)

diff --git a/net/econet/af_econet.c b/net/econet/af_econet.c
index 13992e1..f180371 100644
--- a/net/econet/af_econet.c
+++ b/net/econet/af_econet.c
@@ -661,8 +661,10 @@ static int ec_dev_ioctl(struct socket *sock, unsigned int cmd, void __user *arg)
 	err = 0;
 	switch (cmd) {
 	case SIOCSIFADDR:
-		if (!capable(CAP_NET_ADMIN))
-			return -EPERM;
+		if (!capable(CAP_NET_ADMIN)) {
+			err = -EPERM;
+			break;
+		}
 
 		edev = dev->ec_ptr;
 		if (edev == NULL) {
-- 
1.7.1.31.g6297e

--
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