diff options
| author | Andy Shevchenko <andriy.shevchenko@linux.intel.com> | 2015-08-05 16:51:11 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2015-10-22 14:43:22 -0700 |
| commit | bff1c3b39ae30ec13d10a581655ec07af5c76608 (patch) | |
| tree | 6ce3663be8108d945b95828506158b3835962d5d /drivers/base | |
| parent | 453995c8b13b02acc4e82c718c13c98373167655 (diff) | |
device property: fix potential NULL pointer dereference
commit ecc87eed7beeb50c0be0b73322d62135277ea2b0 upstream.
In device_add_property_set() we check pset parameter for a NULL, but few lines
later we do a pointer arithmetic without check that will crash kernel in the
set_secondary_fwnode().
Here we check if pset parameter is NULL and return immediately.
Fixes: 16ba08d5c9ec (device property: Introduce firmware node type for platform data)
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/base')
| -rw-r--r-- | drivers/base/property.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/drivers/base/property.c b/drivers/base/property.c index 1d0b116cae95..0a60ef1500cd 100644 --- a/drivers/base/property.c +++ b/drivers/base/property.c @@ -26,9 +26,10 @@ */ void device_add_property_set(struct device *dev, struct property_set *pset) { - if (pset) - pset->fwnode.type = FWNODE_PDATA; + if (!pset) + return; + pset->fwnode.type = FWNODE_PDATA; set_secondary_fwnode(dev, &pset->fwnode); } EXPORT_SYMBOL_GPL(device_add_property_set); |