From: Lin Ma linma@zju.edu.cn
[ Upstream commit 44194cb1b6045dea33ae9a0d54fb7e7cd93a2e09 ]
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.
Fixes: 1e55417d8fc6 ("tipc: add media set to new netlink api") Fixes: 46f15c6794fb ("tipc: add media get/dump to new netlink api") Signed-off-by: Lin Ma linma@zju.edu.cn Reviewed-by: Florian Westphal fw@strlen.de Reviewed-by: Tung Nguyen tung.q.nguyen@dektech.com.au Link: https://lore.kernel.org/r/20230614120604.1196377-1-linma@zju.edu.cn Signed-off-by: Jakub Kicinski kuba@kernel.org Signed-off-by: Sasha Levin sashal@kernel.org --- 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 53881406e2006..cdcd2731860ba 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;