2021-01-28 12:01:15

by wengjianfeng

[permalink] [raw]
Subject: [PATCH] nl80211: ignore the length of hide ssid is zero in scan

From: wengjianfeng <[email protected]>

If the length of hide ssid is zero in scan, don't pass
it to driver, which doesn't make any sense.

Signed-off-by: wengjianfeng <[email protected]>
---
net/wireless/nl80211.c | 3 +++
1 file changed, 3 insertions(+)

diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c
index 775d0c4..d62e2aa 100644
--- a/net/wireless/nl80211.c
+++ b/net/wireless/nl80211.c
@@ -8727,6 +8727,9 @@ static int nl80211_abort_scan(struct sk_buff *skb, struct genl_info *info)
err = -EINVAL;
goto out_free;
}
+ /* ignore the length of hide ssid is zero */
+ if (nla_len(attr) == 0)
+ continue;
request->ssids[i].ssid_len = nla_len(attr);
memcpy(request->ssids[i].ssid, nla_data(attr),
nla_len(attr));
--
1.9.1