linux-kernel - [PATCH] acpi: avoid leaking format string into kobject name

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Message-ID: <20160107192429.GA5113@www.outflux.net>
Date:	Thu, 7 Jan 2016 11:24:29 -0800
From:	Kees Cook <keescook@...omium.org>
To:	"Rafael J. Wysocki" <rjw@...ysocki.net>
Cc:	Len Brown <lenb@...nel.org>, linux-acpi@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: [PATCH] acpi: avoid leaking format string into kobject name

The dn->name is expected to be used as a literal, so add the missing
"%s".

Signed-off-by: Kees Cook <keescook@...omium.org>
---
 drivers/acpi/device_sysfs.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/acpi/device_sysfs.c b/drivers/acpi/device_sysfs.c
index 707cf6213bc2..b9afb47db7ed 100644
--- a/drivers/acpi/device_sysfs.c
+++ b/drivers/acpi/device_sysfs.c
@@ -104,7 +104,7 @@ static void acpi_expose_nondev_subnodes(struct kobject *kobj,
 
 		init_completion(&dn->kobj_done);
 		ret = kobject_init_and_add(&dn->kobj, &acpi_data_node_ktype,
-					   kobj, dn->name);
+					   kobj, "%s", dn->name);
 		if (ret)
 			acpi_handle_err(dn->handle, "Failed to expose (%d)\n", ret);
 		else
-- 
2.6.3


-- 
Kees Cook
Chrome OS & Brillo Security