From: Sasha Levin <sashal@kernel.org>
To: linux-kernel@vger.kernel.org, stable@vger.kernel.org
Cc: Johannes Berg <johannes.berg@intel.com>,
syzbot+be9c824e6f269d608288@syzkaller.appspotmail.com,
Sasha Levin <sashal@kernel.org>,
johannes@sipsolutions.net, davem@davemloft.net,
edumazet@google.com, kuba@kernel.org, pabeni@redhat.com,
linux-wireless@vger.kernel.org, netdev@vger.kernel.org
Subject: [PATCH AUTOSEL 6.5 32/45] wifi: mac80211: check S1G action frame size
Date: Fri, 8 Sep 2023 14:13:13 -0400 [thread overview]
Message-ID: <20230908181327.3459042-32-sashal@kernel.org> (raw)
In-Reply-To: <20230908181327.3459042-1-sashal@kernel.org>
From: Johannes Berg <johannes.berg@intel.com>
[ Upstream commit 19e4a47ee74718a22e963e8a647c8c3bfe8bb05c ]
Before checking the action code, check that it even
exists in the frame.
Reported-by: syzbot+be9c824e6f269d608288@syzkaller.appspotmail.com
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
net/mac80211/rx.c | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/net/mac80211/rx.c b/net/mac80211/rx.c
index 0af2599c17e8d..e751cda5eef69 100644
--- a/net/mac80211/rx.c
+++ b/net/mac80211/rx.c
@@ -3734,6 +3734,10 @@ ieee80211_rx_h_action(struct ieee80211_rx_data *rx)
break;
goto queue;
case WLAN_CATEGORY_S1G:
+ if (len < offsetofend(typeof(*mgmt),
+ u.action.u.s1g.action_code))
+ break;
+
switch (mgmt->u.action.u.s1g.action_code) {
case WLAN_S1G_TWT_SETUP:
case WLAN_S1G_TWT_TEARDOWN:
--
2.40.1
next prev parent reply other threads:[~2023-09-08 18:20 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <20230908181327.3459042-1-sashal@kernel.org>
2023-09-08 18:12 ` [PATCH AUTOSEL 6.5 07/45] wifi: ath9k: fix fortify warnings Sasha Levin
2023-09-08 18:12 ` [PATCH AUTOSEL 6.5 08/45] wifi: ath9k: fix printk specifier Sasha Levin
2023-09-08 18:12 ` [PATCH AUTOSEL 6.5 09/45] wifi: rtw88: delete timer and free skb queue when unloading Sasha Levin
2023-09-08 18:12 ` [PATCH AUTOSEL 6.5 10/45] wifi: mwifiex: fix fortify warning Sasha Levin
2023-09-08 18:12 ` [PATCH AUTOSEL 6.5 11/45] mt76: mt7921: don't assume adequate headroom for SDIO headers Sasha Levin
2023-09-08 18:12 ` [PATCH AUTOSEL 6.5 12/45] wifi: wil6210: fix fortify warnings Sasha Levin
2023-09-08 18:12 ` [PATCH AUTOSEL 6.5 16/45] wifi: ath12k: Fix a NULL pointer dereference in ath12k_mac_op_hw_scan() Sasha Levin
2023-09-08 18:12 ` [PATCH AUTOSEL 6.5 17/45] wifi: ath12k: avoid array overflow of hw mode for preferred_hw_mode Sasha Levin
2023-09-08 18:13 ` [PATCH AUTOSEL 6.5 31/45] wifi: iwlwifi: pcie: avoid a warning in case prepare card failed Sasha Levin
2023-09-08 18:13 ` Sasha Levin [this message]
2023-09-08 18:13 ` [PATCH AUTOSEL 6.5 34/45] wifi: cfg80211: reject auth/assoc to AP with our address Sasha Levin
2023-09-08 18:13 ` [PATCH AUTOSEL 6.5 35/45] wifi: cfg80211: ocb: don't leave if not joined Sasha Levin
2023-09-08 18:13 ` [PATCH AUTOSEL 6.5 36/45] wifi: mac80211: check for station first in client probe Sasha Levin
2023-09-08 18:13 ` [PATCH AUTOSEL 6.5 37/45] wifi: mac80211_hwsim: drop short frames Sasha Levin
2023-09-08 18:13 ` [PATCH AUTOSEL 6.5 38/45] Revert "wifi: mac80211_hwsim: check the return value of nla_put_u32" Sasha Levin
2023-09-08 18:13 ` [PATCH AUTOSEL 6.5 40/45] wifi: ath12k: Fix memory leak in rx_desc and tx_desc Sasha Levin
2023-09-08 18:13 ` [PATCH AUTOSEL 6.5 42/45] wifi: ath12k: add check max message length while scanning with extraie Sasha Levin
2023-09-08 18:13 ` [PATCH AUTOSEL 6.5 43/45] Fix nomenclature for USB and PCI wireless devices Sasha Levin
2023-09-08 19:12 ` Alan Stern
2023-09-08 21:31 ` Greg Kroah-Hartman
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