powerpc/xmon: avoid format string leaking to printk

This makes sure format strings cannot leak into printk (the string has
already been correctly processed for format arguments).

Signed-off-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>

1 files changed, 1 insertions, 1 deletions

diff --git a/arch/powerpc/xmon/nonstdio.c b/arch/powerpc/xmon/nonstdio.c
index bce3dcfe5058..c98748617896 100644
--- a/arch/powerpc/xmon/nonstdio.c
+++ b/arch/powerpc/xmon/nonstdio.c
@@ -122,7 +122,7 @@ void xmon_printf(const char *format, ...)
 
         if (n && rc == 0) {
                 /* No udbg hooks, fallback to printk() - dangerous */
-                printk(xmon_outbuf);
+                printk("%s", xmon_outbuf);
         }
 }