From: ard.biesheuvel@linaro.org (Ard Biesheuvel)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH v3 5/8] arm64: efi: remove forbidden values from the PE/COFF header
Date: Thu, 23 Mar 2017 19:00:48 +0000 [thread overview]
Message-ID: <20170323190051.14882-6-ard.biesheuvel@linaro.org> (raw)
In-Reply-To: <20170323190051.14882-1-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.
Acked-by: Mark Rutland <mark.rutland@arm.com>
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
---
| 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
--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
/*
--
2.9.3
next prev parent reply other threads:[~2017-03-23 19:00 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-03-23 19:00 [PATCH v3 0/8] arm64: efi: PE/COFF cleanup/hardening Ard Biesheuvel
2017-03-23 19:00 ` [PATCH v3 1/8] include: pe.h: allow for use in assembly Ard Biesheuvel
2017-03-23 19:00 ` [PATCH v3 2/8] include: pe.h: add some missing definitions Ard Biesheuvel
2017-03-23 19:00 ` [PATCH v3 3/8] arm64: efi: move EFI header and related data to a separate .S file Ard Biesheuvel
2017-03-23 19:00 ` [PATCH v3 4/8] arm64: efi: clean up Image header after PE header has been split off Ard Biesheuvel
2017-03-30 18:26 ` Will Deacon
2017-03-30 18:26 ` Mark Rutland
2017-03-23 19:00 ` Ard Biesheuvel [this message]
2017-03-23 19:00 ` [PATCH v3 6/8] arm64: efi: remove pointless dummy .reloc section Ard Biesheuvel
2017-03-23 19:00 ` [PATCH v3 7/8] arm64: efi: replace open coded constants with symbolic ones Ard Biesheuvel
2017-03-23 19:00 ` [PATCH v3 8/8] arm64: efi: split Image code and data into separate PE/COFF sections Ard Biesheuvel
2017-03-30 18:29 ` Mark Rutland
2017-04-04 15:33 ` [PATCH v3 0/8] arm64: efi: PE/COFF cleanup/hardening Ard Biesheuvel
2017-04-04 16:57 ` Catalin Marinas
2017-04-04 17:02 ` 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=20170323190051.14882-6-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).