This is a note to let you know that I've just added the patch titled
ath11k: Fix memory leak in ath11k_qmi_driver_event_work
to the 5.14-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
ath11k-fix-memory-leak-in-ath11k_qmi_driver_event_wo.patch
and it can be found in the queue-5.14 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit e1e8fd82a675a0c5ce481488e157390012b7b3fd
Author: Baochen Qiang <bqiang@xxxxxxxxxxxxxx>
Date: Tue Sep 28 14:00:44 2021 +0300
ath11k: Fix memory leak in ath11k_qmi_driver_event_work
[ Upstream commit 72de799aa9e3e064b35238ef053d2f0a49db055a ]
The buffer pointed to by event is not freed in case
ATH11K_FLAG_UNREGISTERING bit is set, resulting in
memory leak, so fix it.
Tested-on: WCN6855 hw2.0 PCI WLAN.HSP.1.1-01720.1-QCAHSPSWPL_V1_V2_SILICONZ_LITE-1
Fixes: d5c65159f289 ("ath11k: driver for Qualcomm IEEE 802.11ax devices")
Signed-off-by: Baochen Qiang <bqiang@xxxxxxxxxxxxxx>
Signed-off-by: Jouni Malinen <jouni@xxxxxxxxxxxxxx>
Signed-off-by: Kalle Valo <kvalo@xxxxxxxxxxxxxx>
Link: https://lore.kernel.org/r/20210913180246.193388-4-jouni@xxxxxxxxxxxxxx
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/drivers/net/wireless/ath/ath11k/qmi.c b/drivers/net/wireless/ath/ath11k/qmi.c
index b5e34d670715e..4c5071b7d11dc 100644
--- a/drivers/net/wireless/ath/ath11k/qmi.c
+++ b/drivers/net/wireless/ath/ath11k/qmi.c
@@ -2707,8 +2707,10 @@ static void ath11k_qmi_driver_event_work(struct work_struct *work)
list_del(&event->list);
spin_unlock(&qmi->event_lock);
- if (test_bit(ATH11K_FLAG_UNREGISTERING, &ab->dev_flags))
+ if (test_bit(ATH11K_FLAG_UNREGISTERING, &ab->dev_flags)) {
+ kfree(event);
return;
+ }
switch (event->type) {
case ATH11K_QMI_EVENT_SERVER_ARRIVE:
