Patch "crypto: hash - Fix page length clamping in hash walk" has been added to the 4.5-stable tree

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

crypto: hash - Fix page length clamping in hash walk

to the 4.5-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:
crypto-hash-fix-page-length-clamping-in-hash-walk.patch
and it can be found in the queue-4.5 subdirectory.

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

From: Herbert Xu <[email protected]>
Date: Wed, 4 May 2016 17:52:56 +0800
Subject: crypto: hash - Fix page length clamping in hash walk

From: Herbert Xu <[email protected]>

commit 13f4bb78cf6a312bbdec367ba3da044b09bf0e29 upstream.

The crypto hash walk code is broken when supplied with an offset greater than or equal to PAGE_SIZE. This patch fixes it by adjusting walk->pg and walk->offset when this happens.

---
 crypto/ahash.c |    3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

@@ -69,8 +69,9 @@ static int hash_walk_new_entry(struct cr
 	struct scatterlist *sg;
 
 	sg = walk->sg;
-	walk->pg = sg_page(sg);
 	walk->offset = sg->offset;
+	walk->pg = sg_page(walk->sg) + (walk->offset >> PAGE_SHIFT);
+	walk->offset = offset_in_page(walk->offset);
 	walk->entrylen = sg->length;
 
 	if (walk->entrylen > walk->total)

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

queue-4.5/crypto-testmgr-use-kmalloc-memory-for-rsa-input.patch queue-4.5/crypto-qat-fix-adf_ctl_drv.c-undefined-reference-to-adf_init_pf_wq.patch queue-4.5/crypto-qat-fix-invalid-pf2vf_resp_wq-logic.patch queue-4.5/crypto-hash-fix-page-length-clamping-in-hash-walk.patch