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w1: avoid potential u16 overflow

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Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Acked-by: Evgeniy Polyakov <zbr@ioremap.net>
Signed-off-by: David Fries <David@Fries.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
David Fries authored and Greg Kroah-Hartman committed 2014-11-26 19:09:01 -08:00
1 parent a30cfa475d
commit 4b97b27939
1 file changed
+1 -1
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drivers/w1/w1_netlink.c
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@@ -598,7 +598,7 @@ static void w1_cn_callback(struct cn_msg *cn, struct netlink_skb_parms *nsp)
msg = (struct w1_netlink_msg *)(cn + 1);
if (node_count) {
int size;
u16 reply_size = sizeof(*cn) + cn->len + slave_len;
int reply_size = sizeof(*cn) + cn->len + slave_len;
if (cn->flags & W1_CN_BUNDLE) {
/* bundling duplicats some of the messages */
reply_size += 2 * cmd_count * (sizeof(struct cn_msg) +