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Date:   Thu,  9 Jun 2022 22:16:20 +0000
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Subject: [PATCH 01/12] x86/mce: use correct format characters
From:   Bill Wendling <morbo@google.com>
To:     isanbard@gmail.com
Cc:     Tony Luck <tony.luck@intel.com>, Borislav Petkov <bp@alien8.de>,
        Thomas Gleixner <tglx@linutronix.de>,
        Ingo Molnar <mingo@redhat.com>,
        Dave Hansen <dave.hansen@linux.intel.com>, x86@kernel.org,
        "H. Peter Anvin" <hpa@zytor.com>,
        Phillip Potter <phil@philpotter.co.uk>,
        Arnd Bergmann <arnd@arndb.de>,
        Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
        "Rafael J. Wysocki" <rafael.j.wysocki@intel.com>,
        Jan Kara <jack@suse.com>,
        Andrew Morton <akpm@linux-foundation.org>,
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        Eric Dumazet <edumazet@google.com>,
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From: Bill Wendling <isanbard@gmail.com>

When compiling with -Wformat, clang emits the following warnings:

arch/x86/kernel/cpu/mce/core.c:295:9: error: format string is not a string literal (potentially insecure) [-Werror,-Wformat-security]
                panic(msg);
                      ^~~

Use a string literal for the format string.

Link: https://github.com/ClangBuiltLinux/linux/issues/378
Signed-off-by: Bill Wendling <isanbard@gmail.com>
---
 arch/x86/kernel/cpu/mce/core.c | 2 +-
 scripts/Makefile.extrawarn     | 4 ++--
 2 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/arch/x86/kernel/cpu/mce/core.c b/arch/x86/kernel/cpu/mce/core.c
index 2c8ec5c71712..3d411b7c85ad 100644
--- a/arch/x86/kernel/cpu/mce/core.c
+++ b/arch/x86/kernel/cpu/mce/core.c
@@ -292,7 +292,7 @@ static noinstr void mce_panic(const char *msg, struct mce *final, char *exp)
 	if (!fake_panic) {
 		if (panic_timeout == 0)
 			panic_timeout = mca_cfg.panic_timeout;
-		panic(msg);
+		panic("%s", msg);
 	} else
 		pr_emerg(HW_ERR "Fake kernel panic: %s\n", msg);
 
-- 
2.36.1.255.ge46751e96f-goog