linux-kernel - [for-linus][PATCH 1/3] bootconfig: Load size and checksum in the footer as le32

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: <20201202011309.569371712@goodmis.org>
Date:   Tue, 01 Dec 2020 20:12:25 -0500
From:   Steven Rostedt <rostedt@...dmis.org>
To:     linux-kernel@...r.kernel.org
Cc:     Ingo Molnar <mingo@...nel.org>,
        Andrew Morton <akpm@...ux-foundation.org>,
        Linus Torvalds <torvalds@...ux-foundation.org>,
        Masami Hiramatsu <mhiramat@...nel.org>
Subject: [for-linus][PATCH 1/3] bootconfig: Load size and checksum in the footer as le32

From: Masami Hiramatsu <mhiramat@...nel.org>

Load the size and the checksum fields in the footer as le32
instead of u32. This will allow us to apply bootconfig to the
cross build initrd without caring the endianness.

Link: https://lkml.kernel.org/r/160583934457.547349.10504070298990791074.stgit@devnote2

Reported-by: Steven Rostedt <rostedt@...dmis.org>
Suggested-by: Linus Torvalds <torvalds@...ux-foundation.org>
Signed-off-by: Masami Hiramatsu <mhiramat@...nel.org>
Signed-off-by: Steven Rostedt (VMware) <rostedt@...dmis.org>
---
 init/main.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/init/main.c b/init/main.c
index 20baced721ad..32b2a8affafd 100644
--- a/init/main.c
+++ b/init/main.c
@@ -288,8 +288,8 @@ static void * __init get_boot_config_from_initrd(u32 *_size, u32 *_csum)
 
 found:
 	hdr = (u32 *)(data - 8);
-	size = hdr[0];
-	csum = hdr[1];
+	size = le32_to_cpu(hdr[0]);
+	csum = le32_to_cpu(hdr[1]);
 
 	data = ((void *)hdr) - size;
 	if ((unsigned long)data < initrd_start) {
-- 
2.28.0