Patch "Don't feed anything but regular iovec's to blk_rq_map_user_iov" has been added to the 4.4-stable tree

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

Don't feed anything but regular iovec's to blk_rq_map_user_iov

to the 4.4-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:
don-t-feed-anything-but-regular-iovec-s-to-blk_rq_map_user_iov.patch
and it can be found in the queue-4.4 subdirectory.

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

From: Linus Torvalds <[email protected]>
Date: Tue, 6 Dec 2016 16:18:14 -0800
Subject: Don't feed anything but regular iovec's to blk_rq_map_user_iov

From: Linus Torvalds <[email protected]>

commit a0ac402cfcdc904f9772e1762b3fda112dcc56a0 upstream.

In theory we could map other things, but there's a reason that function is called "user_iov". Using anything else (like splice can do) just confuses it.

---
 block/blk-map.c |    3 +++
 1 file changed, 3 insertions(+)

@@ -90,6 +90,9 @@ int blk_rq_map_user_iov(struct request_q
 	if (!iter || !iter->count)
 		return -EINVAL;
 
+	if (!iter_is_iovec((struct iov_iter *)iter))
+		return -EINVAL;
+
 	iov_for_each(iov, i, *iter) {
 		unsigned long uaddr = (unsigned long) iov.iov_base;
 

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

queue-4.4/don-t-feed-anything-but-regular-iovec-s-to-blk_rq_map_user_iov.patch