path: root/drivers
diff options
authorChris Wright <chrisw@sous-sol.org>2011-02-10 15:58:56 -0800
committerJames Morris <jmorris@namei.org>2011-02-11 17:58:11 +1100
commit47970b1b2aa64464bc0a9543e86361a622ae7c03 (patch)
tree66e5474c37ea12a28d52dc652978df0ab7a0287f /drivers
parent6037b715d6fab139742c3df8851db4c823081561 (diff)
pci: use security_capable() when checking capablities during config space read
Eric Paris noted that commit de139a3 ("pci: check caps from sysfs file open to read device dependent config space") caused the capability check to bypass security modules and potentially auditing. Rectify this by calling security_capable() when checking the open file's capabilities for config space reads. Reported-by: Eric Paris <eparis@redhat.com> Signed-off-by: Chris Wright <chrisw@sous-sol.org> Signed-off-by: James Morris <jmorris@namei.org>
Diffstat (limited to 'drivers')
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/pci/pci-sysfs.c b/drivers/pci/pci-sysfs.c
index 8ecaac98392..f7771f336b7 100644
--- a/drivers/pci/pci-sysfs.c
+++ b/drivers/pci/pci-sysfs.c
@@ -23,6 +23,7 @@
#include <linux/mm.h>
#include <linux/fs.h>
#include <linux/capability.h>
+#include <linux/security.h>
#include <linux/pci-aspm.h>
#include <linux/slab.h>
#include "pci.h"
@@ -368,7 +369,7 @@ pci_read_config(struct file *filp, struct kobject *kobj,
u8 *data = (u8*) buf;
/* Several chips lock up trying to read undefined config space */
- if (cap_raised(filp->f_cred->cap_effective, CAP_SYS_ADMIN)) {
+ if (security_capable(filp->f_cred, CAP_SYS_ADMIN)) {
size = dev->cfg_size;
} else if (dev->hdr_type == PCI_HEADER_TYPE_CARDBUS) {
size = 128;