diff options
| author | Chris Wright <chrisw@sous-sol.org> | 2011-02-11 00:58:56 +0100 |
|---|---|---|
| committer | James Morris <jmorris@namei.org> | 2011-02-11 07:58:11 +0100 |
| commit | 47970b1b2aa64464bc0a9543e86361a622ae7c03 (patch) | |
| tree | 66e5474c37ea12a28d52dc652978df0ab7a0287f | |
| parent | security: add cred argument to security_capable() (diff) | |
| download | linux-47970b1b2aa64464bc0a9543e86361a622ae7c03.tar.xz linux-47970b1b2aa64464bc0a9543e86361a622ae7c03.zip | |
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>
| -rw-r--r-- | drivers/pci/pci-sysfs.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/pci/pci-sysfs.c b/drivers/pci/pci-sysfs.c index 8ecaac983923..f7771f336b7d 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; |