linux-kernel - [PATCH 4/7] dm/connector: Only process connector packages from privileged processes

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]

Message-Id: <1255426098-9411-5-git-send-email-philipp.reisner@linbit.com>
Date:	Tue, 13 Oct 2009 11:28:15 +0200
From:	Philipp Reisner <philipp.reisner@...bit.com>
To:	Greg KH <greg@...ah.com>
Cc:	linux-kernel@...r.kernel.org, serue@...ibm.com,
	Philipp Reisner <philipp.reisner@...bit.com>
Subject: [PATCH 4/7] dm/connector: Only process connector packages from privileged processes

Signed-off-by: Philipp Reisner <philipp.reisner@...bit.com>
(cherry picked from commit 93136335f9ad7a98b92eacda1b43dccbf063cd07)
---
 drivers/md/dm-log-userspace-transfer.c |    3 +++
 1 files changed, 3 insertions(+), 0 deletions(-)

diff --git a/drivers/md/dm-log-userspace-transfer.c b/drivers/md/dm-log-userspace-transfer.c
index 1327e1a..54abf9e 100644
--- a/drivers/md/dm-log-userspace-transfer.c
+++ b/drivers/md/dm-log-userspace-transfer.c
@@ -133,6 +133,9 @@ static void cn_ulog_callback(struct cn_msg *msg, struct netlink_skb_parms *nsp)
 {
 	struct dm_ulog_request *tfr = (struct dm_ulog_request *)(msg + 1);
 
+	if (!cap_raised(nsp->eff_cap, CAP_SYS_ADMIN))
+		return;
+
 	spin_lock(&receiving_list_lock);
 	if (msg->len == 0)
 		fill_pkg(msg, NULL);
-- 
1.6.0.4

--
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/