Patch "device property: fix potential NULL pointer dereference" has been added to the 4.2-stable tree

This is a note to let you know that I've just added the patch titled

device property: fix potential NULL pointer dereference

to the 4.2-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

The filename of the patch is:
device-property-fix-potential-null-pointer-dereference.patch
and it can be found in the queue-4.2 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree, please let <[email protected]> know about it.

From: Andy Shevchenko <[email protected]>
Date: Wed, 5 Aug 2015 16:51:11 +0300
Subject: device property: fix potential NULL pointer dereference

From: Andy Shevchenko <[email protected]>

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.

---
 drivers/base/property.c |    5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

@@ -27,9 +27,10 @@
  */
 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);

Patches currently in stable-queue which might be from [email protected] are

queue-4.2/dmaengine-dw-properly-read-dwc_params-register.patch queue-4.2/device-property-fix-potential-null-pointer-dereference.patch queue-4.2/x86-pci-intel_mid_pci-work-around-for-irq0-assignment.patch