Commit ce7e40c4 authored Jan 09, 2017 by Vlad Tsyrklevich Committed by David S. Miller Jan 09, 2017

net/appletalk: Fix kernel memory disclosure



ipddp_route structs contain alignment padding so kernel heap memory
is leaked when they are copied to user space in
ipddp_ioctl(SIOCFINDIPDDPRT). Change kmalloc() to kzalloc() to clear
that memory.

Signed-off-by: Vlad Tsyrklevich <vlad@tsyrklevich.net>
Signed-off-by: David S. Miller <davem@davemloft.net>

parent b007f090

drivers/net/appletalk/ipddp.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -190,7 +190,7 @@ static netdev_tx_t ipddp_xmit(struct sk_buff skb, struct net_device dev)
		*/
		static int ipddp_create(struct ipddp_route *new_rt)
		{
		struct ipddp_route rt = kmalloc(sizeof(rt), GFP_KERNEL);
		struct ipddp_route rt = kzalloc(sizeof(rt), GFP_KERNEL);

		if (rt == NULL)
		return -ENOMEM;