netdev - [PATCH v1] tipc: resize nlattr array to correct size

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Date: Wed, 14 Jun 2023 16:00:13 +0800
From: Lin Ma <linma@....edu.cn>
To: davem@...emloft.net,
	netdev@...r.kernel.org,
	tipc-discussion@...ts.sourceforge.net
Cc: Lin Ma <linma@....edu.cn>
Subject: [PATCH v1] tipc: resize nlattr array to correct size

According to nla_parse_nested_deprecated(), the tb[] is supposed to the
destination array with maxtype+1 elements. In current
tipc_nl_media_get() and __tipc_nl_media_set(), a larger array is used
which is unnecessary. This patch resize them to a proper size.

Signed-off-by: Lin Ma <linma@....edu.cn>
---
 net/tipc/bearer.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/net/tipc/bearer.c b/net/tipc/bearer.c
index 53881406e200..cdcd2731860b 100644
--- a/net/tipc/bearer.c
+++ b/net/tipc/bearer.c
@@ -1258,7 +1258,7 @@ int tipc_nl_media_get(struct sk_buff *skb, struct genl_info *info)
 	struct tipc_nl_msg msg;
 	struct tipc_media *media;
 	struct sk_buff *rep;
-	struct nlattr *attrs[TIPC_NLA_BEARER_MAX + 1];
+	struct nlattr *attrs[TIPC_NLA_MEDIA_MAX + 1];
 
 	if (!info->attrs[TIPC_NLA_MEDIA])
 		return -EINVAL;
@@ -1307,7 +1307,7 @@ int __tipc_nl_media_set(struct sk_buff *skb, struct genl_info *info)
 	int err;
 	char *name;
 	struct tipc_media *m;
-	struct nlattr *attrs[TIPC_NLA_BEARER_MAX + 1];
+	struct nlattr *attrs[TIPC_NLA_MEDIA_MAX + 1];
 
 	if (!info->attrs[TIPC_NLA_MEDIA])
 		return -EINVAL;
-- 
2.17.1