Messages in this thread Patch in this message | | | From | Greg Kroah-Hartman <> | Subject | [PATCH 3.4 33/39] powerpc/vio: use strcpy in modalias_show | Date | Tue, 26 Nov 2013 16:56:57 -0800 |
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3.4-stable review patch. If anyone has any objections, please let me know.
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From: Prarit Bhargava <prarit@redhat.com>
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: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
--- arch/powerpc/kernel/vio.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)
--- a/arch/powerpc/kernel/vio.c +++ b/arch/powerpc/kernel/vio.c @@ -1342,12 +1342,12 @@ static ssize_t modalias_show(struct devi 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); }
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