Patch "i40iw: Avoid writing to freed memory" has been added to the 4.7-stable tree

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

i40iw: Avoid writing to freed memory

to the 4.7-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:
i40iw-avoid-writing-to-freed-memory.patch
and it can be found in the queue-4.7 subdirectory.

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

From: Mustafa Ismail <[email protected]>
Date: Tue, 23 Aug 2016 17:24:56 -0500
Subject: i40iw: Avoid writing to freed memory

From: Mustafa Ismail <[email protected]>

commit 433c58139f6a7d59824aadd23d6c9cac1d4e6100 upstream.

iwpbl->iwmr points to the structure that contains iwpbl, which is iwmr. Setting this to NULL would result in writing to freed memory. So just free iwmr, and return.

---
 drivers/infiniband/hw/i40iw/i40iw_verbs.c |    3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

@@ -1924,8 +1924,7 @@ static int i40iw_dereg_mr(struct ib_mr *
 		}
 		if (iwpbl->pbl_allocated)
 			i40iw_free_pble(iwdev->pble_rsrc, palloc);
-		kfree(iwpbl->iwmr);
-		iwpbl->iwmr = NULL;
+		kfree(iwmr);
 		return 0;
 	}
 

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

queue-4.7/i40iw-update-hw_iwarp_state.patch queue-4.7/i40iw-add-missing-check-for-interface-already-open.patch queue-4.7/i40iw-fix-double-free-of-allocated_buffer.patch queue-4.7/i40iw-receive-notification-events-correctly.patch queue-4.7/i40iw-change-mem_resources-pointer-to-a-u8.patch queue-4.7/i40iw-protect-req_resource_num-update.patch queue-4.7/i40iw-add-missing-null-check-for-mpa-private-data.patch queue-4.7/i40iw-avoid-writing-to-freed-memory.patch queue-4.7/i40iw-do-not-set-self-referencing-pointer-to-null-after-kfree.patch