From 6dfb40acd9b0b421b587f26840dfc072211976c2 Mon Sep 17 00:00:00 2001
From: Sebastian Bixl <sebastianbixl@gmx.de>
Date: Sun, 15 Oct 2017 22:34:01 +0200
Subject: [PATCH 04/76] route/vlan: fix memory corruption in
 rtnl_link_vlan_set_egress_map

If you set more than four entries for the vlan egress map a memory
corruption occurs because the reallocation does not reserve memory
for more than four.

Fixes: a7469ce758fac3631df6ce72eb3f89150070e7f8

https://github.com/thom311/libnl/pull/155

[thaller@redhat.com: squashed commits and updated commit message]
---
 lib/route/link/vlan.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/route/link/vlan.c b/lib/route/link/vlan.c
index 118d5a0..477c9af 100644
--- a/lib/route/link/vlan.c
+++ b/lib/route/link/vlan.c
@@ -589,7 +589,7 @@ int rtnl_link_vlan_set_egress_map(struct rtnl_link *link, uint32_t from, int to)
 		int new_size = vi->vi_egress_size + 32;
 		void *ptr;
 
-		ptr = realloc(vi->vi_egress_qos, new_size);
+		ptr = realloc(vi->vi_egress_qos, new_size * sizeof(struct vlan_map));
 		if (!ptr)
 			return -NLE_NOMEM;
 
-- 
1.8.3.1

