[ 3.5.y.z extended stable ] Patch "crypto: sanitize argument for format string" has been added to staging queue

[Luis Henriques]

This is a note to let you know that I have just added a patch titled

    crypto: sanitize argument for format string

to the linux-3.5.y-queue branch of the 3.5.y.z extended stable tree 
which can be found at:

 http://kernel.ubuntu.com/git?p=ubuntu/linux.git;a=shortlog;h=refs/heads/linux-3.5.y-queue

If you, or anyone else, feels it should not be added to this tree, please 
reply to this email.

For more information about the 3.5.y.z tree, see
https://wiki.ubuntu.com/Kernel/Dev/ExtendedStable

Thanks.
-Luis

------

>From 71ccdddda07665545dd37be792597af7cbda9e92 Mon Sep 17 00:00:00 2001
From: Kees Cook <keescook at chromium.org>
Date: Wed, 3 Jul 2013 15:01:15 -0700
Subject: [PATCH] crypto: sanitize argument for format string

commit 1c8fca1d92e14859159a82b8a380d220139b7344 upstream.

The template lookup interface does not provide a way to use format
strings, so make sure that the interface cannot be abused accidentally.

Signed-off-by: Kees Cook <keescook at chromium.org>
Cc: Herbert Xu <herbert at gondor.apana.org.au>
Cc: "David S. Miller" <davem at davemloft.net>
Signed-off-by: Andrew Morton <akpm at linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds at linux-foundation.org>
Signed-off-by: Luis Henriques <luis.henriques at canonical.com>
---
 crypto/algapi.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/crypto/algapi.c b/crypto/algapi.c
index 056571b..b4c046c 100644
--- a/crypto/algapi.c
+++ b/crypto/algapi.c
@@ -512,7 +512,8 @@ static struct crypto_template *__crypto_lookup_template(const char *name)

 struct crypto_template *crypto_lookup_template(const char *name)
 {
-	return try_then_request_module(__crypto_lookup_template(name), name);
+	return try_then_request_module(__crypto_lookup_template(name), "%s",
+				       name);
 }
 EXPORT_SYMBOL_GPL(crypto_lookup_template);

--
1.8.1.2