[PATCH] acpi: powerbutton: ensure we don't get scanf buffer overflow

[Colin King]

From: Colin Ian King <colin.king at canonical.com>

Signed-off-by: Colin Ian King <colin.king at canonical.com>
---
 src/acpi/powerbutton/powerbutton.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/acpi/powerbutton/powerbutton.c b/src/acpi/powerbutton/powerbutton.c
index b67cbcd..5bf14a7 100644
--- a/src/acpi/powerbutton/powerbutton.c
+++ b/src/acpi/powerbutton/powerbutton.c
@@ -62,7 +62,7 @@ static int power_button_test1(fwts_framework *fw)
 	else  {
 		char button[4096];
 		memset(button, 0, sizeof(button));
-		sscanf(buffer, "%*s %s", button);
+		sscanf(buffer, "%*s %4095s", button);
 
 		fwts_passed(fw, "Detected %s power button event.", button);
 	}
-- 
1.8.5.2