diff options
| author | Ping-Ke Shih <pkshih@realtek.com> | 2024-09-19 16:12:14 +0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2024-12-14 20:03:43 +0100 |
| commit | 7296e5611adb2c619bd7bd3817ddde7ba865ef17 (patch) | |
| tree | 0eeb83db872985a9332a4800601f606344a59dc5 | |
| parent | f2a107b536494c723a14979678be2c1b8eeb29ef (diff) | |
wifi: rtw89: check return value of ieee80211_probereq_get() for RNR
[ Upstream commit 630d5d8f2bf6b340202b6bc2c05d794bbd8e4c1c ]
The return value of ieee80211_probereq_get() might be NULL, so check it
before using to avoid NULL pointer access.
Addresses-Coverity-ID: 1529805 ("Dereference null return value")
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Link: https://patch.msgid.link/20240919081216.28505-2-pkshih@realtek.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
| -rw-r--r-- | drivers/net/wireless/realtek/rtw89/fw.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/net/wireless/realtek/rtw89/fw.c b/drivers/net/wireless/realtek/rtw89/fw.c index 13a7c39ceb6f..e6bceef691e9 100644 --- a/drivers/net/wireless/realtek/rtw89/fw.c +++ b/drivers/net/wireless/realtek/rtw89/fw.c @@ -6074,6 +6074,9 @@ static int rtw89_update_6ghz_rnr_chan(struct rtw89_dev *rtwdev, skb = ieee80211_probereq_get(rtwdev->hw, rtwvif_link->mac_addr, NULL, 0, req->ie_len); + if (!skb) + return -ENOMEM; + skb_put_data(skb, ies->ies[NL80211_BAND_6GHZ], ies->len[NL80211_BAND_6GHZ]); skb_put_data(skb, ies->common_ies, ies->common_ie_len); hdr = (struct ieee80211_hdr *)skb->data; |