From: Zhizhou Tian <zhizhou.tian@gmail.com>
Date: Fri, 8 Sep 2017 03:00:16 +0000 (+0800)
Subject: netfilter: xt_hashlimit: alloc hashtable with right size
X-Git-Url: http://git.cdn.openwrt.org/?a=commitdiff_plain;h=05d0eae7c1cf6bf7b19c02b3a97ff457b3317323;p=openwrt%2Fstaging%2Fblogic.git

netfilter: xt_hashlimit: alloc hashtable with right size

struct xt_byteslimit_htable used hlist_head, but memory allocation is
done through sizeof(struct list_head).

Signed-off-by: Zhizhou Tian <zhizhou.tian@gmail.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
---

diff --git a/net/netfilter/xt_hashlimit.c b/net/netfilter/xt_hashlimit.c
index 10d48234f5f4..962ea4a63d9f 100644
--- a/net/netfilter/xt_hashlimit.c
+++ b/net/netfilter/xt_hashlimit.c
@@ -279,7 +279,7 @@ static int htable_create(struct net *net, struct hashlimit_cfg3 *cfg,
 		size = cfg->size;
 	} else {
 		size = (totalram_pages << PAGE_SHIFT) / 16384 /
-		       sizeof(struct list_head);
+		       sizeof(struct hlist_head);
 		if (totalram_pages > 1024 * 1024 * 1024 / PAGE_SIZE)
 			size = 8192;
 		if (size < 16)
@@ -287,7 +287,7 @@ static int htable_create(struct net *net, struct hashlimit_cfg3 *cfg,
 	}
 	/* FIXME: don't use vmalloc() here or anywhere else -HW */
 	hinfo = vmalloc(sizeof(struct xt_hashlimit_htable) +
-	                sizeof(struct list_head) * size);
+	                sizeof(struct hlist_head) * size);
 	if (hinfo == NULL)
 		return -ENOMEM;
 	*out_hinfo = hinfo;