linux-arm-kernel.lists.infradead.org archive mirror
 help / color / mirror / Atom feed
From: ard.biesheuvel@linaro.org (Ard Biesheuvel)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH v2 1/7] arm: efi: remove forbidden values from the PE/COFF header
Date: Thu, 29 Jun 2017 08:18:43 +0000	[thread overview]
Message-ID: <20170629081849.15081-2-ard.biesheuvel@linaro.org> (raw)
In-Reply-To: <20170629081849.15081-1-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>
---
 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 a17ca8d78656..4169b900d9d4 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:
-- 
2.9.3

  reply	other threads:[~2017-06-29  8:18 UTC|newest]

Thread overview: 18+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-06-29  8:18 [PATCH v2 0/7] ARM: efi: PE/COFF cleanup/hardening Ard Biesheuvel
2017-06-29  8:18 ` Ard Biesheuvel [this message]
2017-06-29  8:18 ` [PATCH v2 2/7] arm: efi: remove pointless dummy .reloc section Ard Biesheuvel
2017-06-29  8:18 ` [PATCH v2 3/7] arm: efi: replace open coded constants with symbolic ones Ard Biesheuvel
2017-06-29  8:18 ` [PATCH v2 4/7] arm: compressed: discard ksymtab/kcrctab sections Ard Biesheuvel
2017-06-29  8:18 ` [PATCH v2 5/7] arm: efi: split zImage code and data into separate PE/COFF sections Ard Biesheuvel
2017-09-08 13:50   ` Gregory CLEMENT
2017-09-08 13:54     ` Ard Biesheuvel
2017-09-08 14:28       ` Ard Biesheuvel
2017-09-08 14:33         ` Gregory CLEMENT
2017-09-08 14:48           ` Ard Biesheuvel
2017-09-08 14:56             ` Gregory CLEMENT
2017-09-08 14:57               ` Ard Biesheuvel
2017-09-08 15:11                 ` Ard Biesheuvel
2017-09-08 15:17                   ` Gregory CLEMENT
2017-09-08 15:18                     ` Ard Biesheuvel
2017-06-29  8:18 ` [PATCH v2 6/7] arm: compressed: put zImage header and EFI header in dedicated section Ard Biesheuvel
2017-06-29  8:18 ` [PATCH v2 7/7] arm: efi: add PE/COFF debug table to EFI header Ard Biesheuvel

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=20170629081849.15081-2-ard.biesheuvel@linaro.org \
    --to=ard.biesheuvel@linaro.org \
    --cc=linux-arm-kernel@lists.infradead.org \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).