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authorPrarit Bhargava <prarit@redhat.com>2013-10-17 08:00:11 -0400
committerBen Hutchings <ben@decadent.org.uk>2014-01-03 04:33:16 +0000
commitf38808475d3ef744bc6e2610e33fb4c92dc85654 (patch)
treed8be1aaf8fd4435be071a337bf03d1827dcaeb15 /arch/powerpc
parent87ab8e5eb9b4fa4db73dc759e340da92d97117b3 (diff)
powerpc/vio: use strcpy in modalias_show
commit 411cabf79e684171669ad29a0628c400b4431e95 upstream. 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 Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
Diffstat (limited to 'arch/powerpc')
-rw-r--r--arch/powerpc/kernel/vio.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/arch/powerpc/kernel/vio.c b/arch/powerpc/kernel/vio.c
index cbff9a460446..dfb1c1926c3c 100644
--- a/arch/powerpc/kernel/vio.c
+++ b/arch/powerpc/kernel/vio.c
@@ -1352,12 +1352,12 @@ 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);
}