linux-kernel - [089/140] IPoIB: Fix world-writable child interface control sysfs attributes

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

Date:	Fri, 30 Jul 2010 10:30:54 -0700
From:	Greg KH <gregkh@...e.de>
To:	linux-kernel@...r.kernel.org, stable@...nel.org
Cc:	stable-review@...nel.org, torvalds@...ux-foundation.org,
	akpm@...ux-foundation.org, alan@...rguk.ukuu.org.uk,
	Or Gerlitz <ogerlitz@...taire.com>,
	Roland Dreier <rolandd@...co.com>
Subject: [089/140] IPoIB: Fix world-writable child interface control sysfs attributes

2.6.33-stable review patch.  If anyone has any objections, please let us know.

------------------

From: Or Gerlitz <ogerlitz@...taire.com>

commit 7a52b34b07122ff5f45258d47f260f8a525518f0 upstream.

Sumeet Lahorani <sumeet.lahorani@...cle.com> reported that the IPoIB
child entries are world-writable; however we don't want ordinary users
to be able to create and destroy child interfaces, so fix them to be
writable only by root.

Signed-off-by: Or Gerlitz <ogerlitz@...taire.com>
Signed-off-by: Roland Dreier <rolandd@...co.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@...e.de>

---
 drivers/infiniband/ulp/ipoib/ipoib_main.c |    4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

--- a/drivers/infiniband/ulp/ipoib/ipoib_main.c
+++ b/drivers/infiniband/ulp/ipoib/ipoib_main.c
@@ -1163,7 +1163,7 @@ static ssize_t create_child(struct devic
 
 	return ret ? ret : count;
 }
-static DEVICE_ATTR(create_child, S_IWUGO, NULL, create_child);
+static DEVICE_ATTR(create_child, S_IWUSR, NULL, create_child);
 
 static ssize_t delete_child(struct device *dev,
 			    struct device_attribute *attr,
@@ -1183,7 +1183,7 @@ static ssize_t delete_child(struct devic
 	return ret ? ret : count;
 
 }
-static DEVICE_ATTR(delete_child, S_IWUGO, NULL, delete_child);
+static DEVICE_ATTR(delete_child, S_IWUSR, NULL, delete_child);
 
 int ipoib_add_pkey_attr(struct net_device *dev)
 {


--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/