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List:       linux-stable-commits
Subject:    Patch "[PATCH 2/2] Revert "fix minor infoleak in get_user_ex()"" has been added to the 4.4-stable tr
From:       <gregkh () linuxfoundation ! org>
Date:       2016-10-31 16:16:14
Message-ID: 147793057415882 () kroah ! com
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This is a note to let you know that I've just added the patch titled

    [PATCH 2/2] Revert "fix minor infoleak in get_user_ex()"

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:
     0002-Revert-fix-minor-infoleak-in-get_user_ex.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 <stable@vger.kernel.org> know about it.


From 1123c59cf94697e3d6f7883305287d6c034814f4 Mon Sep 17 00:00:00 2001
From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Date: Mon, 31 Oct 2016 10:14:06 -0600
Subject: [PATCH 2/2] Revert "fix minor infoleak in get_user_ex()"

This reverts commit 9d25c78ec01c402dc56272693c44ef9d72ecdd2e which is
1c109fabbd51863475cd12ac206bdd249aee35af upstream

Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 arch/x86/include/asm/uaccess.h |    6 +-----
 1 file changed, 1 insertion(+), 5 deletions(-)

--- a/arch/x86/include/asm/uaccess.h
+++ b/arch/x86/include/asm/uaccess.h
@@ -394,11 +394,7 @@ do {									\
 #define __get_user_asm_ex(x, addr, itype, rtype, ltype)			\
 	asm volatile("1:	mov"itype" %1,%"rtype"0\n"		\
 		     "2:\n"						\
-		     ".section .fixup,\"ax\"\n"				\
-                     "3:xor"itype" %"rtype"0,%"rtype"0\n"		\
-		     "  jmp 2b\n"					\
-		     ".previous\n"					\
-		     _ASM_EXTABLE_EX(1b, 3b)				\
+		     _ASM_EXTABLE_EX(1b, 2b)				\
 		     : ltype(x) : "m" (__m(addr)))
 
 #define __put_user_nocheck(x, ptr, size)			\


Patches currently in stable-queue which might be from gregkh@linuxfoundation.org are

queue-4.4/0002-Revert-fix-minor-infoleak-in-get_user_ex.patch
queue-4.4/0001-Revert-x86-mm-Expand-the-exception-table-logic-to-al.patch
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