linux-kernel - [PATCH v2 1/3] MIPS: head.S: Always jump to kernel

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-Id: <20200527063438.391949-2-jiaxun.yang@flygoat.com>
Date:   Wed, 27 May 2020 14:34:32 +0800
From:   Jiaxun Yang <jiaxun.yang@...goat.com>
To:     linux-mips@...r.kernel.org
Cc:     Jiaxun Yang <jiaxun.yang@...goat.com>,
        Thomas Bogendoerfer <tsbogend@...ha.franken.de>,
        Kees Cook <keescook@...omium.org>,
        Borislav Petkov <bp@...e.de>,
        Heiko Carstens <heiko.carstens@...ibm.com>,
        Fangrui Song <maskray@...gle.com>, linux-kernel@...r.kernel.org
Subject: [PATCH v2 1/3] MIPS: head.S: Always jump to kernel_entry at head of text

Buggy loaders like early version of PMON2000 sometimes ignore
elf_entry and goto start of text directly.

That would help with dealing with these loaders.

Signed-off-by: Jiaxun Yang <jiaxun.yang@...goat.com>
---
 arch/mips/kernel/head.S | 2 --
 1 file changed, 2 deletions(-)

diff --git a/arch/mips/kernel/head.S b/arch/mips/kernel/head.S
index 3b02ffe46304..c7c2795837e7 100644
--- a/arch/mips/kernel/head.S
+++ b/arch/mips/kernel/head.S
@@ -69,7 +69,6 @@
 
 EXPORT(_stext)
 
-#ifdef CONFIG_BOOT_RAW
 	/*
 	 * Give us a fighting chance of running if execution beings at the
 	 * kernel load address.	 This is needed because this platform does
@@ -77,7 +76,6 @@ EXPORT(_stext)
 	 */
 FEXPORT(__kernel_entry)
 	j	kernel_entry
-#endif /* CONFIG_BOOT_RAW */
 
 	__REF
 
-- 
2.27.0.rc0