From: Eric Dumazet <eric.dumazet@gmail.com>
Date: Wed, 2 Sep 2009 02:40:09 +0000 (+0000)
Subject: tc: Fix unitialized kernel memory leak
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=16ebb5e0b36ceadc8186f71d68b0c4fa4b6e781b;p=GitHub%2FLineageOS%2FG12%2Fandroid_kernel_amlogic_linux-4.9.git

tc: Fix unitialized kernel memory leak

Three bytes of uninitialized kernel memory are currently leaked to user

Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Reviewed-by: Jiri Pirko <jpirko@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---

diff --git a/net/sched/sch_api.c b/net/sched/sch_api.c
index 24d17ce9c294..fdb694e9f759 100644
--- a/net/sched/sch_api.c
+++ b/net/sched/sch_api.c
@@ -1456,6 +1456,8 @@ static int tc_fill_tclass(struct sk_buff *skb, struct Qdisc *q,
 	nlh = NLMSG_NEW(skb, pid, seq, event, sizeof(*tcm), flags);
 	tcm = NLMSG_DATA(nlh);
 	tcm->tcm_family = AF_UNSPEC;
+	tcm->tcm__pad1 = 0;
+	tcm->tcm__pad2 = 0;
 	tcm->tcm_ifindex = qdisc_dev(q)->ifindex;
 	tcm->tcm_parent = q->handle;
 	tcm->tcm_handle = q->handle;