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path: root/drivers/net/vxlan.c
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-rw-r--r--drivers/net/vxlan.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/net/vxlan.c b/drivers/net/vxlan.c
index a5b415fed11e..779e56c43d27 100644
--- a/drivers/net/vxlan.c
+++ b/drivers/net/vxlan.c
@@ -1924,6 +1924,10 @@ static struct sk_buff *vxlan_na_create(struct sk_buff *request,
ns_olen = request->len - skb_network_offset(request) -
sizeof(struct ipv6hdr) - sizeof(*ns);
for (i = 0; i < ns_olen-1; i += (ns->opt[i+1]<<3)) {
+ if (!ns->opt[i + 1]) {
+ kfree_skb(reply);
+ return NULL;
+ }
if (ns->opt[i] == ND_OPT_SOURCE_LL_ADDR) {
daddr = ns->opt + i + sizeof(struct nd_opt_hdr);
break;