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From: Karthikeyan Periyasamy <periyasa@codeaurora.org>
To: ath11k@lists.infradead.org
Cc: Karthikeyan Periyasamy <periyasa@codeaurora.org>,
	linux-wireless@vger.kernel.org
Subject: [PATCH] ath11k: fix rcu lock protect in peer assoc confirmation
Date: Wed,  5 Feb 2020 06:52:28 +0530	[thread overview]
Message-ID: <1580865748-31286-1-git-send-email-periyasa@codeaurora.org> (raw)

ath11k_mac_get_ar_by_vdev_id() get protected under rcu lock
and unlock. peer association confirmation event get used this API
without rcu protection, so corrected it.

Signed-off-by: Karthikeyan Periyasamy <periyasa@codeaurora.org>
---
 drivers/net/wireless/ath/ath11k/wmi.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/net/wireless/ath/ath11k/wmi.c b/drivers/net/wireless/ath/ath11k/wmi.c
index a9b301c..9cbe038d 100644
--- a/drivers/net/wireless/ath/ath11k/wmi.c
+++ b/drivers/net/wireless/ath/ath11k/wmi.c
@@ -5345,15 +5345,18 @@ static void ath11k_peer_assoc_conf_event(struct ath11k_base *ab, struct sk_buff
 		   "peer assoc conf ev vdev id %d macaddr %pM\n",
 		   peer_assoc_conf.vdev_id, peer_assoc_conf.macaddr);
 
+	rcu_read_lock();
 	ar = ath11k_mac_get_ar_by_vdev_id(ab, peer_assoc_conf.vdev_id);
 
 	if (!ar) {
 		ath11k_warn(ab, "invalid vdev id in peer assoc conf ev %d",
 			    peer_assoc_conf.vdev_id);
+		rcu_read_unlock();
 		return;
 	}
 
 	complete(&ar->peer_assoc_done);
+	rcu_read_unlock();
 }
 
 static void ath11k_update_stats_event(struct ath11k_base *ab, struct sk_buff *skb)
-- 
1.9.1

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WARNING: multiple messages have this Message-ID (diff)
From: Karthikeyan Periyasamy <periyasa@codeaurora.org>
To: ath11k@lists.infradead.org
Cc: linux-wireless@vger.kernel.org,
	Karthikeyan Periyasamy <periyasa@codeaurora.org>
Subject: [PATCH] ath11k: fix rcu lock protect in peer assoc confirmation
Date: Wed,  5 Feb 2020 06:52:28 +0530	[thread overview]
Message-ID: <1580865748-31286-1-git-send-email-periyasa@codeaurora.org> (raw)

ath11k_mac_get_ar_by_vdev_id() get protected under rcu lock
and unlock. peer association confirmation event get used this API
without rcu protection, so corrected it.

Signed-off-by: Karthikeyan Periyasamy <periyasa@codeaurora.org>
---
 drivers/net/wireless/ath/ath11k/wmi.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/net/wireless/ath/ath11k/wmi.c b/drivers/net/wireless/ath/ath11k/wmi.c
index a9b301c..9cbe038d 100644
--- a/drivers/net/wireless/ath/ath11k/wmi.c
+++ b/drivers/net/wireless/ath/ath11k/wmi.c
@@ -5345,15 +5345,18 @@ static void ath11k_peer_assoc_conf_event(struct ath11k_base *ab, struct sk_buff
 		   "peer assoc conf ev vdev id %d macaddr %pM\n",
 		   peer_assoc_conf.vdev_id, peer_assoc_conf.macaddr);
 
+	rcu_read_lock();
 	ar = ath11k_mac_get_ar_by_vdev_id(ab, peer_assoc_conf.vdev_id);
 
 	if (!ar) {
 		ath11k_warn(ab, "invalid vdev id in peer assoc conf ev %d",
 			    peer_assoc_conf.vdev_id);
+		rcu_read_unlock();
 		return;
 	}
 
 	complete(&ar->peer_assoc_done);
+	rcu_read_unlock();
 }
 
 static void ath11k_update_stats_event(struct ath11k_base *ab, struct sk_buff *skb)
-- 
1.9.1

             reply	other threads:[~2020-02-05  1:22 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-02-05  1:22 Karthikeyan Periyasamy [this message]
2020-02-05  1:22 ` [PATCH] ath11k: fix rcu lock protect in peer assoc confirmation Karthikeyan Periyasamy
2020-02-11 18:31 ` Kalle Valo
2020-02-11 18:31 ` Kalle Valo

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