linux-kernel - [PATCH 093/145] charger-manager: Ensure event is not used as format string

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: <1374101277-7915-94-git-send-email-kamal@canonical.com>
Date:	Wed, 17 Jul 2013 15:47:05 -0700
From:	Kamal Mostafa <kamal@...onical.com>
To:	linux-kernel@...r.kernel.org, stable@...r.kernel.org,
	kernel-team@...ts.ubuntu.com
Cc:	Kees Cook <keescook@...omium.org>, Anton Vorontsov <cbou@...l.ru>,
	David Woodhouse <dwmw2@...radead.org>,
	Anton Vorontsov <anton@...msg.org>,
	Kamal Mostafa <kamal@...onical.com>
Subject: [PATCH 093/145] charger-manager: Ensure event is not used as format string

3.8.13.5 -stable review patch.  If anyone has any objections, please let me know.

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

From: Kees Cook <keescook@...omium.org>

commit 3594f4c0d7bc51e3a7e6d73c44e368ae079e42f3 upstream.

The exposed interface for cm_notify_event() could result in the event msg
string being parsed as a format string. Make sure it is only used as a
literal string.

Signed-off-by: Kees Cook <keescook@...omium.org>
Cc: Anton Vorontsov <cbou@...l.ru>
Cc: David Woodhouse <dwmw2@...radead.org>
Signed-off-by: Anton Vorontsov <anton@...msg.org>
Signed-off-by: Kamal Mostafa <kamal@...onical.com>
---
 drivers/power/charger-manager.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/power/charger-manager.c b/drivers/power/charger-manager.c
index 6ba047f..002df70 100644
--- a/drivers/power/charger-manager.c
+++ b/drivers/power/charger-manager.c
@@ -450,7 +450,7 @@ static void uevent_notify(struct charger_manager *cm, const char *event)
 	strncpy(env_str, event, UEVENT_BUF_SIZE);
 	kobject_uevent(&cm->dev->kobj, KOBJ_CHANGE);
 
-	dev_info(cm->dev, event);
+	dev_info(cm->dev, "%s", event);
 }
 
 /**
-- 
1.8.1.2

--
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/