linux-kernel - [PATCH] init/main.c: Do jump_label_init before early_security

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Message-ID: <20240731213429.2244234-1-kpsingh@kernel.org>
Date: Wed, 31 Jul 2024 23:34:29 +0200
From: KP Singh <kpsingh@...nel.org>
To: linux-kernel@...r.kernel.org,
	linux-security-module@...r.kernel.org
Cc: paul@...l-moore.com,
	kpsingh@...nel.org,
	bp@...en8.de,
	sfr@...b.auug.org.au
Subject: [PATCH] init/main.c: Do jump_label_init before early_security_init

LSM indirect calls being are now replaced by static calls, this requires
a jumpt_table_init before early_security_init where LSM hooks and their
static calls and keys are initialized.

Fixes: 2732ad5ecd5b ("lsm: replace indirect LSM hook calls with static calls")
Signed-off-by: KP Singh <kpsingh@...nel.org>
---
 init/main.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/init/main.c b/init/main.c
index 206acdde51f5..5bd45af7a49e 100644
--- a/init/main.c
+++ b/init/main.c
@@ -922,6 +922,8 @@ void start_kernel(void)
 	boot_cpu_init();
 	page_address_init();
 	pr_notice("%s", linux_banner);
+	/* LSM and command line parameters use static keys */
+	jump_label_init();
 	early_security_init();
 	setup_arch(&command_line);
 	setup_boot_config();
@@ -933,8 +935,6 @@ void start_kernel(void)
 	boot_cpu_hotplug_init();
 
 	pr_notice("Kernel command line: %s\n", saved_command_line);
-	/* parameters may set static keys */
-	jump_label_init();
 	parse_early_param();
 	after_dashes = parse_args("Booting kernel",
 				  static_command_line, __start___param,
-- 
2.46.0.rc2.264.g509ed76dc8-goog