diff mbox series

rtw88: check for validity before using pointer

Message ID YcS3D2lwMd0Kox3z@debian-BULLSEYE-live-builder-AMD64
State New
Headers show
Series rtw88: check for validity before using pointer | expand

Commit Message

Muhammad Usama Anjum Dec. 23, 2021, 5:51 p.m. UTC
ieee80211_probereq_get() can return NULL. Pointer skb should be checked
for validty before use.

Fixes: 10d162b2ed39 ("rtw88: 8822c: add ieee80211_ops::hw_scan")
Signed-off-by: Muhammad Usama Anjum <usama.anjum@collabora.com>
---
 drivers/net/wireless/realtek/rtw88/fw.c | 2 ++
 1 file changed, 2 insertions(+)
diff mbox series

Patch

diff --git a/drivers/net/wireless/realtek/rtw88/fw.c b/drivers/net/wireless/realtek/rtw88/fw.c
index 2f7c036f9022..0fc05a810d05 100644
--- a/drivers/net/wireless/realtek/rtw88/fw.c
+++ b/drivers/net/wireless/realtek/rtw88/fw.c
@@ -1866,6 +1866,8 @@  static int rtw_hw_scan_update_probe_req(struct rtw_dev *rtwdev,
 					     req->ssids[i].ssid,
 					     req->ssids[i].ssid_len,
 					     req->ie_len);
+		if (!skb)
+			return -ENOMEM;
 		rtw_append_probe_req_ie(rtwdev, skb, &list, rtwvif);
 		kfree_skb(skb);
 	}