pve-edge-kernel/patches/kernel/0053-x86-head-Remove-confusing-comment.patch

From 109bbd8c905806e929b67ca0b2eaf57ff88f10c1 Mon Sep 17 00:00:00 2001
From: Josh Poimboeuf <[email protected]>
Date: Mon, 18 Sep 2017 21:43:31 -0500
Subject: [PATCH 053/242] x86/head: Remove confusing comment
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CVE-2017-5754

This comment is actively wrong and confusing.  It refers to the
registers' stack offsets after the pt_regs has been constructed on the
stack, but this code is *before* that.

At this point the stack just has the standard iret frame, for which no
comment should be needed.

Signed-off-by: Josh Poimboeuf <[email protected]>
Cc: Andy Lutomirski <[email protected]>
Cc: Boris Ostrovsky <[email protected]>
Cc: Jiri Slaby <[email protected]>
Cc: Juergen Gross <[email protected]>
Cc: Linus Torvalds <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Cc: Thomas Gleixner <[email protected]>
Link: http://lkml.kernel.org/r/a3c267b770fc56c9b86df9c11c552848248aace2.1505764066.git.jpoimboe@redhat.com
Signed-off-by: Ingo Molnar <[email protected]>
(cherry picked from commit 17270717e80de33a884ad328fea5f407d87f6d6a)
Signed-off-by: Andy Whitcroft <[email protected]>
Signed-off-by: Kleber Sacilotto de Souza <[email protected]>
(cherry picked from commit 49187e0108184688304260a75d29b789f36f3a2b)
Signed-off-by: Fabian Grünbichler <[email protected]>
---
 arch/x86/kernel/head_64.S | 4 ----
 1 file changed, 4 deletions(-)

diff --git a/arch/x86/kernel/head_64.S b/arch/x86/kernel/head_64.S
index 6225550883df..627c798b2f15 100644
--- a/arch/x86/kernel/head_64.S
+++ b/arch/x86/kernel/head_64.S
@@ -254,10 +254,6 @@ bad_address:
 
 	__INIT
 ENTRY(early_idt_handler_array)
-	# 104(%rsp) %rflags
-	#  96(%rsp) %cs
-	#  88(%rsp) %rip
-	#  80(%rsp) error code
 	i = 0
 	.rept NUM_EXCEPTION_VECTORS
 	.ifeq (EXCEPTION_ERRCODE_MASK >> i) & 1
-- 
2.14.2