From: ard.biesheuvel@linaro.org (Ard Biesheuvel)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH 1/7] arm: efi: remove forbidden values from the PE/COFF header
Date: Tue, 30 May 2017 18:36:41 +0000 [thread overview]
Message-ID: <20170530183647.28557-2-ard.biesheuvel@linaro.org> (raw)
In-Reply-To: <20170530183647.28557-1-ard.biesheuvel@linaro.org>
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@linaro.org>
---
| 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
--git a/arch/arm/boot/compressed/efi-header.S b/arch/arm/boot/compressed/efi-header.S
index 3f7d1b74c5e0..f9e91ba4d0b1 100644
--- a/arch/arm/boot/compressed/efi-header.S
+++ b/arch/arm/boot/compressed/efi-header.S
@@ -43,7 +43,7 @@ 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.
@@ -109,7 +109,7 @@ 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
@@ -120,7 +120,7 @@ section_table:
.long 0 @ PointerToLineNumbers
.short 0 @ NumberOfRelocations
.short 0 @ NumberOfLineNumbers
- .long 0xe0500020 @ Characteristics
+ .long 0xe0000020 @ Characteristics
.align 9
__efi_start:
--
2.9.3
next prev parent reply other threads:[~2017-05-30 18:36 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-05-30 18:36 [PATCH 0/7] ARM: efi: PE/COFF cleanup/hardening Ard Biesheuvel
2017-05-30 18:36 ` Ard Biesheuvel [this message]
2017-05-30 18:36 ` [PATCH 2/7] arm: efi: remove pointless dummy .reloc section Ard Biesheuvel
2017-05-30 18:36 ` [PATCH 3/7] arm: efi: replace open coded constants with symbolic ones Ard Biesheuvel
2017-05-30 18:36 ` [PATCH 4/7] arm: compressed: discard ksymtab/kcrctab sections Ard Biesheuvel
2017-05-30 18:36 ` [PATCH 5/7] arm: efi: split zImage code and data into separate PE/COFF sections Ard Biesheuvel
2017-05-30 18:36 ` [PATCH 6/7] arm: compressed: put zImage header and EFI header in dedicated section Ard Biesheuvel
2017-05-30 18:36 ` [PATCH 7/7] arm: efi: add PE/COFF debug table to EFI header Ard Biesheuvel
2017-06-21 12:20 ` [PATCH 0/7] ARM: efi: PE/COFF cleanup/hardening Ard Biesheuvel
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