From 411cabf79e684171669ad29a0628c400b4431e95 Mon Sep 17 00:00:00 2001 From: Prarit Bhargava Date: Thu, 17 Oct 2013 08:00:11 -0400 Subject: [PATCH] powerpc/vio: use strcpy in modalias_show Commit e82b89a6f19bae73fb064d1b3dd91fcefbb478f4 used strcat instead of strcpy which can result in an overflow of newlines on the buffer. Signed-off-by: Prarit Bhargava Cc: benh@kernel.crashing.org Cc: ben@decadent.org.uk Cc: stable@vger.kernel.org Signed-off-by: Benjamin Herrenschmidt --- arch/powerpc/kernel/vio.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/arch/powerpc/kernel/vio.c b/arch/powerpc/kernel/vio.c index d38cc08b16c7..cb92d8204ec7 100644 --- a/arch/powerpc/kernel/vio.c +++ b/arch/powerpc/kernel/vio.c @@ -1531,12 +1531,12 @@ static ssize_t modalias_show(struct device *dev, struct device_attribute *attr, dn = dev->of_node; if (!dn) { - strcat(buf, "\n"); + strcpy(buf, "\n"); return strlen(buf); } cp = of_get_property(dn, "compatible", NULL); if (!cp) { - strcat(buf, "\n"); + strcpy(buf, "\n"); return strlen(buf); }