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Date: Wed, 8 Feb 2017 11:55:38 +0000
From: Ard Biesheuvel <ard.biesheuvel@...aro.org>
To: linux-efi@...r.kernel.org,
linux-arm-kernel@...ts.infradead.org,
mark.rutland@....com,
leif.lindholm@...aro.org
Cc: catalin.marinas@....com,
linux@...linux.org.uk,
kernel-hardening@...ts.openwall.com,
labbott@...oraproject.org,
Ard Biesheuvel <ard.biesheuvel@...aro.org>
Subject: [PATCH v2 05/14] arm64: 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>
---
arch/arm64/kernel/efi-header.S | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
diff --git a/arch/arm64/kernel/efi-header.S b/arch/arm64/kernel/efi-header.S
index 9b24ce130afb..515624bbfcd0 100644
--- a/arch/arm64/kernel/efi-header.S
+++ b/arch/arm64/kernel/efi-header.S
@@ -15,7 +15,7 @@ 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 0x206 // Characteristics.
// IMAGE_FILE_DEBUG_STRIPPED |
@@ -88,7 +88,7 @@ section_table:
.long 0 // PointerToLineNumbers
.short 0 // NumberOfRelocations
.short 0 // NumberOfLineNumbers
- .long 0x42100040 // Characteristics (section flags)
+ .long 0x42000040 // Characteristics (section flags)
.ascii ".text"
@@ -104,7 +104,7 @@ section_table:
.long 0 // PointerToLineNumbers
.short 0 // NumberOfRelocations
.short 0 // NumberOfLineNumbers
- .long 0xe0500020 // Characteristics
+ .long 0xe0000020 // Characteristics
#ifdef CONFIG_DEBUG_EFI
/*
--
2.7.4
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