linux-kernel - [tip:efi/core] arm/efi: Remove forbidden values from the PE/COFF header

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Date:   Mon, 21 Aug 2017 02:18:15 -0700
From:   tip-bot for Ard Biesheuvel <tipbot@...or.com>
To:     linux-tip-commits@...r.kernel.org
Cc:     hpa@...or.com, tglx@...utronix.de, mingo@...nel.org,
        peterz@...radead.org, linux-kernel@...r.kernel.org,
        ard.biesheuvel@...aro.org, torvalds@...ux-foundation.org,
        matt@...eblueprint.co.uk
Subject: [tip:efi/core] arm/efi: Remove forbidden values from the PE/COFF
 header

Commit-ID:  4415f9f4a6e5c6a4228098fc8289f21f3dda515c
Gitweb:     http://git.kernel.org/tip/4415f9f4a6e5c6a4228098fc8289f21f3dda515c
Author:     Ard Biesheuvel <ard.biesheuvel@...aro.org>
AuthorDate: Fri, 18 Aug 2017 20:49:41 +0100
Committer:  Ingo Molnar <mingo@...nel.org>
CommitDate: Mon, 21 Aug 2017 09:43:50 +0200

arm/efi: Remove forbidden values from the PE/COFF header

Bring the PE/COFF header in line with the PE/COFF spec, by setting
NumberOfSymbols to 0, and removing the section alignment flags.

Signed-off-by: Ard Biesheuvel <ard.biesheuvel@...aro.org>
Cc: Linus Torvalds <torvalds@...ux-foundation.org>
Cc: Matt Fleming <matt@...eblueprint.co.uk>
Cc: Peter Zijlstra <peterz@...radead.org>
Cc: Thomas Gleixner <tglx@...utronix.de>
Cc: linux-efi@...r.kernel.org
Link: http://lkml.kernel.org/r/20170818194947.19347-9-ard.biesheuvel@linaro.org
Signed-off-by: Ingo Molnar <mingo@...nel.org>
---
 arch/arm/boot/compressed/efi-header.S | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/arch/arm/boot/compressed/efi-header.S b/arch/arm/boot/compressed/efi-header.S
index a17ca8d..4169b90 100644
--- a/arch/arm/boot/compressed/efi-header.S
+++ b/arch/arm/boot/compressed/efi-header.S
@@ -44,7 +44,7 @@ coff_header:
 		.short	2			@ nr_sections
 		.long	0 			@ TimeDateStamp
 		.long	0			@ PointerToSymbolTable
-		.long	1			@ NumberOfSymbols
+		.long	0			@ NumberOfSymbols
 		.short	section_table - optional_header
 						@ SizeOfOptionalHeader
 		.short	0x306			@ Characteristics.
@@ -110,7 +110,7 @@ section_table:
 		.long	0			@ PointerToLineNumbers
 		.short	0			@ NumberOfRelocations
 		.short	0			@ NumberOfLineNumbers
-		.long	0x42100040		@ Characteristics
+		.long	0x42000040		@ Characteristics
 
 		.ascii	".text\0\0\0"
 		.long	_end - __efi_start	@ VirtualSize
@@ -121,7 +121,7 @@ section_table:
 		.long	0			@ PointerToLineNumbers
 		.short	0			@ NumberOfRelocations
 		.short	0			@ NumberOfLineNumbers
-		.long	0xe0500020		@ Characteristics
+		.long	0xe0000020		@ Characteristics
 
 		.align	9
 __efi_start: