[PATCH 01/12] x86/mce: use correct format characters

From: Bill Wendling
Date: Thu Jun 09 2022 - 18:17:45 EST


From: Bill Wendling <isanbard@xxxxxxxxx>

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@xxxxxxxxx>
---
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