From: Sasha Levin <sashal@kernel.org>
To: linux-kernel@vger.kernel.org, stable@vger.kernel.org
Cc: Martin Kepplinger <martin.kepplinger@puri.sm>,
Kalle Valo <kvalo@codeaurora.org>,
Sasha Levin <sashal@kernel.org>,
linux-wireless@vger.kernel.org, netdev@vger.kernel.org
Subject: [PATCH AUTOSEL 5.5 065/121] rsi: fix null pointer dereference during rsi_shutdown()
Date: Sat, 11 Apr 2020 19:06:10 -0400 [thread overview]
Message-ID: <20200411230706.23855-65-sashal@kernel.org> (raw)
In-Reply-To: <20200411230706.23855-1-sashal@kernel.org>
From: Martin Kepplinger <martin.kepplinger@puri.sm>
[ Upstream commit 16bbc3eb83728c03138191a5d23d84d38175fa26 ]
Appearently the hw pointer can be NULL while the module is loaded and
in that case rsi_shutdown() crashes due to the unconditional dereference.
Signed-off-by: Martin Kepplinger <martin.kepplinger@puri.sm>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/net/wireless/rsi/rsi_91x_sdio.c | 9 ++++++---
1 file changed, 6 insertions(+), 3 deletions(-)
diff --git a/drivers/net/wireless/rsi/rsi_91x_sdio.c b/drivers/net/wireless/rsi/rsi_91x_sdio.c
index 1bebba4e85273..5d6143a551877 100644
--- a/drivers/net/wireless/rsi/rsi_91x_sdio.c
+++ b/drivers/net/wireless/rsi/rsi_91x_sdio.c
@@ -1468,12 +1468,15 @@ static void rsi_shutdown(struct device *dev)
struct rsi_91x_sdiodev *sdev =
(struct rsi_91x_sdiodev *)adapter->rsi_dev;
struct ieee80211_hw *hw = adapter->hw;
- struct cfg80211_wowlan *wowlan = hw->wiphy->wowlan_config;
rsi_dbg(ERR_ZONE, "SDIO Bus shutdown =====>\n");
- if (rsi_config_wowlan(adapter, wowlan))
- rsi_dbg(ERR_ZONE, "Failed to configure WoWLAN\n");
+ if (hw) {
+ struct cfg80211_wowlan *wowlan = hw->wiphy->wowlan_config;
+
+ if (rsi_config_wowlan(adapter, wowlan))
+ rsi_dbg(ERR_ZONE, "Failed to configure WoWLAN\n");
+ }
if (IS_ENABLED(CONFIG_RSI_COEX) && adapter->priv->coex_mode > 1 &&
adapter->priv->bt_adapter) {
--
2.20.1
next prev parent reply other threads:[~2020-04-11 23:08 UTC|newest]
Thread overview: 40+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-04-11 23:05 [PATCH AUTOSEL 5.5 001/121] net: wan: wanxl: use allow to pass CROSS_COMPILE_M68k for rebuilding firmware Sasha Levin
2020-04-11 23:05 ` [PATCH AUTOSEL 5.5 002/121] netfilter: ctnetlink: be more strict when NF_CONNTRACK_MARK is not set Sasha Levin
2020-04-11 23:05 ` [PATCH AUTOSEL 5.5 003/121] net: axienet: Convert DMA error handler to a work queue Sasha Levin
2020-04-11 23:05 ` [PATCH AUTOSEL 5.5 004/121] net: phy: probe PHY drivers synchronously Sasha Levin
2020-04-11 23:05 ` [PATCH AUTOSEL 5.5 009/121] ionic: check for NULL structs on teardown Sasha Levin
2020-04-11 23:05 ` [PATCH AUTOSEL 5.5 010/121] net: phy: mscc: accept all RGMII species in vsc85xx_mac_if_set Sasha Levin
2020-04-11 23:05 ` [PATCH AUTOSEL 5.5 018/121] selftests/bpf: Fix test_progs's parsing of test numbers Sasha Levin
2020-04-11 23:05 ` [PATCH AUTOSEL 5.5 019/121] net/mlx5: E-Switch, Hold mutex when querying drop counter in legacy mode Sasha Levin
2020-04-11 23:05 ` [PATCH AUTOSEL 5.5 020/121] libbpf: Ignore incompatible types with matching name during CO-RE relocation Sasha Levin
2020-04-11 23:05 ` [PATCH AUTOSEL 5.5 023/121] ath10k: use kzalloc to read for ath10k_sdio_hif_diag_read Sasha Levin
2020-04-11 23:05 ` [PATCH AUTOSEL 5.5 024/121] mwifiex: set needed_headroom, not hard_header_len Sasha Levin
2020-04-11 23:05 ` [PATCH AUTOSEL 5.5 025/121] Bluetooth: L2CAP: handle l2cap config request during open state Sasha Levin
2020-04-11 23:05 ` [PATCH AUTOSEL 5.5 027/121] ath10k: fix not registering airtime of 11a station with WMM disable Sasha Levin
2020-04-11 23:05 ` [PATCH AUTOSEL 5.5 029/121] net/mlx5e: Init ethtool steering for representors Sasha Levin
2020-04-11 23:05 ` [PATCH AUTOSEL 5.5 031/121] Bluetooth: Fix calculation of SCO handle for packet processing Sasha Levin
2020-04-11 23:05 ` [PATCH AUTOSEL 5.5 032/121] net: rmnet: add missing module alias Sasha Levin
2020-04-11 23:05 ` [PATCH AUTOSEL 5.5 035/121] Bluetooth: guard against controllers sending zero'd events Sasha Levin
2020-04-11 23:05 ` [PATCH AUTOSEL 5.5 040/121] net: hns3: modify an unsuitable print when setting unknown duplex to fibre Sasha Levin
2020-04-11 23:05 ` [PATCH AUTOSEL 5.5 042/121] net: intel: e1000e: fix possible sleep-in-atomic-context bugs in e1000e_get_hw_semaphore() Sasha Levin
2020-04-11 23:05 ` [PATCH AUTOSEL 5.5 043/121] net: dsa: bcm_sf2: Also configure Port 5 for 2Gb/sec on 7278 Sasha Levin
2020-04-12 1:16 ` Florian Fainelli
2020-04-11 23:05 ` [PATCH AUTOSEL 5.5 044/121] sh_eth: check sh_eth_cpu_data::no_tx_cntrs when dumping registers Sasha Levin
2020-04-11 23:05 ` [PATCH AUTOSEL 5.5 045/121] sh_eth: check sh_eth_cpu_data::cexcr " Sasha Levin
2020-04-11 23:05 ` [PATCH AUTOSEL 5.5 046/121] sh_eth: check sh_eth_cpu_data::no_xdfar " Sasha Levin
2020-04-11 23:05 ` [PATCH AUTOSEL 5.5 047/121] ice: Fix implicit queue mapping mode in ice_vsi_get_qs Sasha Levin
2020-04-11 23:05 ` [PATCH AUTOSEL 5.5 049/121] mt76: mt7615: disable 5 GHz on MT7622 Sasha Levin
2020-04-11 23:05 ` [PATCH AUTOSEL 5.5 050/121] mt76: fix handling full tx queues in mt76_dma_tx_queue_skb_raw Sasha Levin
2020-04-11 23:05 ` [PATCH AUTOSEL 5.5 051/121] rtw88: Fix incorrect beamformee role setting Sasha Levin
2020-04-11 23:06 ` [PATCH AUTOSEL 5.5 055/121] rtw88: 8822c: update power sequence to v16 Sasha Levin
2020-04-11 23:06 ` Sasha Levin [this message]
2020-04-11 23:06 ` [PATCH AUTOSEL 5.5 068/121] mt76: mt7603: fix input validation issues for powersave-filtered frames Sasha Levin
2020-04-11 23:06 ` [PATCH AUTOSEL 5.5 076/121] Bluetooth: RFCOMM: fix ODEBUG bug in rfcomm_dev_ioctl Sasha Levin
2020-04-11 23:06 ` [PATCH AUTOSEL 5.5 078/121] ath10k: start recovery process when read int status fail for sdio Sasha Levin
2020-04-11 23:06 ` [PATCH AUTOSEL 5.5 088/121] net: axienet: Propagate failure of DMA descriptor setup Sasha Levin
2020-04-11 23:06 ` [PATCH AUTOSEL 5.5 089/121] brcmfmac: Fix driver crash on USB control transfer timeout Sasha Levin
2020-04-11 23:06 ` [PATCH AUTOSEL 5.5 090/121] brcmfmac: Fix double freeing in the fmac usb data path Sasha Levin
2020-04-11 23:06 ` [PATCH AUTOSEL 5.5 091/121] brcmfmac: fix the incorrect return value in brcmf_inform_single_bss() Sasha Levin
2020-04-11 23:06 ` [PATCH AUTOSEL 5.5 092/121] xfrm: add prep for esp beet mode offload Sasha Levin
2020-04-11 23:06 ` [PATCH AUTOSEL 5.5 095/121] netfilter: nf_tables: silence a RCU-list warning in nft_table_lookup() Sasha Levin
2020-04-11 23:07 ` [PATCH AUTOSEL 5.5 119/121] svcrdma: Fix leak of transport addresses Sasha Levin
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