From: Sasha Levin <sashal@kernel.org>
To: linux-kernel@vger.kernel.org, stable@vger.kernel.org
Cc: Rajat Soni <quic_rajson@quicinc.com>,
Kalle Valo <quic_kvalo@quicinc.com>,
Sasha Levin <sashal@kernel.org>,
kvalo@kernel.org, davem@davemloft.net, edumazet@google.com,
kuba@kernel.org, pabeni@redhat.com, ath12k@lists.infradead.org,
linux-wireless@vger.kernel.org, netdev@vger.kernel.org
Subject: [PATCH AUTOSEL 6.3 16/59] wifi: ath12k: fix memory leak in ath12k_qmi_driver_event_work()
Date: Thu, 4 May 2023 15:40:59 -0400 [thread overview]
Message-ID: <20230504194142.3805425-16-sashal@kernel.org> (raw)
In-Reply-To: <20230504194142.3805425-1-sashal@kernel.org>
From: Rajat Soni <quic_rajson@quicinc.com>
[ Upstream commit 960412bee0ea75f6b3c2dca4a3535795ee84c47a ]
Currently the buffer pointed by event is not freed in case
ATH12K_FLAG_UNREGISTERING bit is set, this causes memory leak.
Add a goto skip instead of return, to ensure event and all the
list entries are freed properly.
Tested-on: QCN9274 hw2.0 PCI WLAN.WBE.1.0.1-00029-QCAHKSWPL_SILICONZ-1
Signed-off-by: Rajat Soni <quic_rajson@quicinc.com>
Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>
Link: https://lore.kernel.org/r/20230315090632.15065-1-quic_rajson@quicinc.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/net/wireless/ath/ath12k/qmi.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/drivers/net/wireless/ath/ath12k/qmi.c b/drivers/net/wireless/ath/ath12k/qmi.c
index 979a63f2e2ab8..03ba245fbee92 100644
--- a/drivers/net/wireless/ath/ath12k/qmi.c
+++ b/drivers/net/wireless/ath/ath12k/qmi.c
@@ -2991,7 +2991,7 @@ static void ath12k_qmi_driver_event_work(struct work_struct *work)
spin_unlock(&qmi->event_lock);
if (test_bit(ATH12K_FLAG_UNREGISTERING, &ab->dev_flags))
- return;
+ goto skip;
switch (event->type) {
case ATH12K_QMI_EVENT_SERVER_ARRIVE:
@@ -3032,6 +3032,8 @@ static void ath12k_qmi_driver_event_work(struct work_struct *work)
ath12k_warn(ab, "invalid event type: %d", event->type);
break;
}
+
+skip:
kfree(event);
spin_lock(&qmi->event_lock);
}
--
2.39.2
--
ath12k mailing list
ath12k@lists.infradead.org
https://lists.infradead.org/mailman/listinfo/ath12k
prev parent reply other threads:[~2023-05-04 19:42 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <20230504194142.3805425-1-sashal@kernel.org>
2023-05-04 19:40 ` [PATCH AUTOSEL 6.3 02/59] wifi: ath12k: Handle lock during peer_id find Sasha Levin
2023-05-04 19:40 ` [PATCH AUTOSEL 6.3 03/59] wifi: ath12k: PCI ops for wakeup/release MHI Sasha Levin
2023-05-04 19:40 ` Sasha Levin [this message]
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