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| author | Ping-Ke Shih <pkshih@realtek.com> | 2019-03-12 17:06:48 +0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2019-05-31 06:47:30 -0700 |
| commit | 09ef780d7d18cd65c00efe558e1904de41cc6738 (patch) | |
| tree | 9e22fecb7ee5948ef356f4eda9571b389157c687 /drivers/net/wireless/realtek/rtlwifi/rtl8192c | |
| parent | ae087a4a56a64de9a07b042388cffc6be021c583 (diff) | |
| download | linux-stable-09ef780d7d18cd65c00efe558e1904de41cc6738.tar.gz linux-stable-09ef780d7d18cd65c00efe558e1904de41cc6738.tar.bz2 linux-stable-09ef780d7d18cd65c00efe558e1904de41cc6738.zip | |
rtlwifi: fix potential NULL pointer dereference
[ Upstream commit 60209d482b97743915883d293c8b85226d230c19 ]
In case dev_alloc_skb fails, the fix safely returns to avoid
potential NULL pointer dereference.
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'drivers/net/wireless/realtek/rtlwifi/rtl8192c')
| -rw-r--r-- | drivers/net/wireless/realtek/rtlwifi/rtl8192c/fw_common.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/net/wireless/realtek/rtlwifi/rtl8192c/fw_common.c b/drivers/net/wireless/realtek/rtlwifi/rtl8192c/fw_common.c index 015476e3f7e5..b7c1d7cc4f45 100644 --- a/drivers/net/wireless/realtek/rtlwifi/rtl8192c/fw_common.c +++ b/drivers/net/wireless/realtek/rtlwifi/rtl8192c/fw_common.c @@ -647,6 +647,8 @@ void rtl92c_set_fw_rsvdpagepkt(struct ieee80211_hw *hw, skb = dev_alloc_skb(totalpacketlen); + if (!skb) + return; skb_put_data(skb, &reserved_page_packet, totalpacketlen); if (cmd_send_packet) |