linux-kernel - [PATCH 4.4 093/118] mn10300: failing __get_user() and get

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Message-Id: <20160922172943.314590370@linuxfoundation.org>
Date:   Thu, 22 Sep 2016 19:29:53 +0200
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Al Viro <viro@...iv.linux.org.uk>
Subject: [PATCH 4.4 093/118] mn10300: failing __get_user() and get_user() should zero

4.4-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Al Viro <viro@...iv.linux.org.uk>

commit 43403eabf558d2800b429cd886e996fd555aa542 upstream.

Signed-off-by: Al Viro <viro@...iv.linux.org.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>

---
 arch/mn10300/include/asm/uaccess.h |    1 +
 1 file changed, 1 insertion(+)

--- a/arch/mn10300/include/asm/uaccess.h
+++ b/arch/mn10300/include/asm/uaccess.h
@@ -181,6 +181,7 @@ struct __large_struct { unsigned long bu
 		"2:\n"						\
 		"	.section	.fixup,\"ax\"\n"	\
 		"3:\n\t"					\
+		"	mov		0,%1\n"			\
 		"	mov		%3,%0\n"		\
 		"	jmp		2b\n"			\
 		"	.previous\n"				\