From: Sasha Levin <sashal@kernel.org>
To: linux-kernel@vger.kernel.org, stable@vger.kernel.org
Cc: Ilan Peer <ilan.peer@intel.com>,
Gregory Greenman <gregory.greenman@intel.com>,
Johannes Berg <johannes.berg@intel.com>,
Sasha Levin <sashal@kernel.org>,
johannes@sipsolutions.net, kvalo@kernel.org,
linux-wireless@vger.kernel.org
Subject: [PATCH AUTOSEL 6.4 13/26] wifi: mac80211_hwsim: Fix possible NULL dereference
Date: Sun, 9 Jul 2023 11:12:42 -0400 [thread overview]
Message-ID: <20230709151255.512931-13-sashal@kernel.org> (raw)
In-Reply-To: <20230709151255.512931-1-sashal@kernel.org>
From: Ilan Peer <ilan.peer@intel.com>
[ Upstream commit 0cc80943ef518a1c51a1111e9346d1daf11dd545 ]
In a call to mac80211_hwsim_select_tx_link() the sta pointer might
be NULL, thus need to check that it is not NULL before accessing it.
Signed-off-by: Ilan Peer <ilan.peer@intel.com>
Signed-off-by: Gregory Greenman <gregory.greenman@intel.com>
Link: https://lore.kernel.org/r/20230604120651.f4d889fc98c4.Iae85f527ed245a37637a874bb8b8c83d79812512@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/net/wireless/virtual/mac80211_hwsim.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/net/wireless/virtual/mac80211_hwsim.c b/drivers/net/wireless/virtual/mac80211_hwsim.c
index 89c7a1420381d..ed5af63025979 100644
--- a/drivers/net/wireless/virtual/mac80211_hwsim.c
+++ b/drivers/net/wireless/virtual/mac80211_hwsim.c
@@ -4,7 +4,7 @@
* Copyright (c) 2008, Jouni Malinen <j@w1.fi>
* Copyright (c) 2011, Javier Lopez <jlopex@gmail.com>
* Copyright (c) 2016 - 2017 Intel Deutschland GmbH
- * Copyright (C) 2018 - 2022 Intel Corporation
+ * Copyright (C) 2018 - 2023 Intel Corporation
*/
/*
@@ -1864,7 +1864,7 @@ mac80211_hwsim_select_tx_link(struct mac80211_hwsim_data *data,
WARN_ON(is_multicast_ether_addr(hdr->addr1));
- if (WARN_ON_ONCE(!sta->valid_links))
+ if (WARN_ON_ONCE(!sta || !sta->valid_links))
return &vif->bss_conf;
for (i = 0; i < ARRAY_SIZE(vif->link_conf); i++) {
--
2.39.2
next prev parent reply other threads:[~2023-07-09 15:13 UTC|newest]
Thread overview: 30+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-07-09 15:12 [PATCH AUTOSEL 6.4 01/26] wifi: ath11k: fix registration of 6Ghz-only phy without the full channel range Sasha Levin
2023-07-09 15:12 ` [PATCH AUTOSEL 6.4 02/26] bpf: Print a warning only if writing to unprivileged_bpf_disabled Sasha Levin
2023-07-09 15:12 ` [PATCH AUTOSEL 6.4 03/26] wifi: rtw89: 8851be: add 8851BE PCI entry and fill PCI capabilities Sasha Levin
2023-07-10 0:25 ` Ping-Ke Shih
2023-07-20 19:11 ` Sasha Levin
2023-07-09 15:12 ` [PATCH AUTOSEL 6.4 04/26] spi: s3c64xx: change polling mode to optional Sasha Levin
2023-07-09 21:14 ` Mark Brown
2023-07-20 19:11 ` Sasha Levin
2023-07-09 15:12 ` [PATCH AUTOSEL 6.4 05/26] bpf: Address KCSAN report on bpf_lru_list Sasha Levin
2023-07-09 15:12 ` [PATCH AUTOSEL 6.4 06/26] spi: cadence-quadspi: Add compatible for AMD Pensando Elba SoC Sasha Levin
2023-07-09 15:12 ` [PATCH AUTOSEL 6.4 07/26] bpf: drop unnecessary user-triggerable WARN_ONCE in verifierl log Sasha Levin
2023-07-09 15:12 ` [PATCH AUTOSEL 6.4 08/26] bpf: tcp: Avoid taking fast sock lock in iterator Sasha Levin
2023-07-09 15:12 ` [PATCH AUTOSEL 6.4 09/26] wifi: rtw88: sdio: Check the HISR RX_REQUEST bit in rtw_sdio_rx_isr() Sasha Levin
2023-07-09 15:12 ` [PATCH AUTOSEL 6.4 10/26] bpf: Silence a warning in btf_type_id_size() Sasha Levin
2023-07-09 15:12 ` [PATCH AUTOSEL 6.4 11/26] devlink: make health report on unregistered instance warn just once Sasha Levin
2023-07-09 15:12 ` [PATCH AUTOSEL 6.4 12/26] wifi: ath11k: add support default regdb while searching board-2.bin for WCN6855 Sasha Levin
2023-07-09 15:12 ` Sasha Levin [this message]
2023-07-09 15:12 ` [PATCH AUTOSEL 6.4 14/26] spi: dw: Add compatible for Intel Mount Evans SoC Sasha Levin
2023-07-09 15:12 ` [PATCH AUTOSEL 6.4 15/26] wifi: ath12k: Avoid NULL pointer access during management transmit cleanup Sasha Levin
2023-07-09 15:12 ` [PATCH AUTOSEL 6.4 16/26] wifi: ath11k: fix memory leak in WMI firmware stats Sasha Levin
2023-07-09 15:12 ` [PATCH AUTOSEL 6.4 17/26] wifi: iwlwifi: mvm: fix potential array out of bounds access Sasha Levin
2023-07-09 15:12 ` [PATCH AUTOSEL 6.4 18/26] net: ethernet: litex: add support for 64 bit stats Sasha Levin
2023-07-09 15:12 ` [PATCH AUTOSEL 6.4 19/26] devlink: report devlink_port_type_warn source device Sasha Levin
2023-07-09 15:12 ` [PATCH AUTOSEL 6.4 20/26] wifi: iwlwifi: mvm: Add NULL check before dereferencing the pointer Sasha Levin
2023-07-09 15:12 ` [PATCH AUTOSEL 6.4 21/26] wifi: wext-core: Fix -Wstringop-overflow warning in ioctl_standard_iw_point() Sasha Levin
2023-07-09 15:12 ` [PATCH AUTOSEL 6.4 22/26] wifi: iwlwifi: Add support for new PCI Id Sasha Levin
2023-07-09 15:12 ` [PATCH AUTOSEL 6.4 23/26] wifi: iwlwifi: mvm: avoid baid size integer overflow Sasha Levin
2023-07-09 15:12 ` [PATCH AUTOSEL 6.4 24/26] wifi: iwlwifi: pcie: add device id 51F1 for killer 1675 Sasha Levin
2023-07-09 15:12 ` [PATCH AUTOSEL 6.4 25/26] igb: Fix igb_down hung on surprise removal Sasha Levin
2023-07-09 15:12 ` [PATCH AUTOSEL 6.4 26/26] net: hns3: fix strncpy() not using dest-buf length as length issue Sasha Levin
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