This is a note to let you know that I've just added the patch titled

ath10k: fix potential memory leak in ath10k_wmi_tlv_op_pull_fw_stats()

to the 4.9-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git%3Ba=su...

The filename of the patch is: ath10k-fix-potential-memory-leak-in-ath10k_wmi_tlv_op_pull_fw_stats.patch and it can be found in the queue-4.9 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree, please let stable@vger.kernel.org know about it.

From foo@baz Tue Nov 28 10:49:28 CET 2017

From: Christian Lamparter chunkeey@googlemail.com Date: Thu, 29 Dec 2016 16:12:09 +0200 Subject: ath10k: fix potential memory leak in ath10k_wmi_tlv_op_pull_fw_stats()

From: Christian Lamparter chunkeey@googlemail.com

[ Upstream commit 097e46d2ae90265d1afe141ba6208ba598b79e01 ]

ath10k_wmi_tlv_op_pull_fw_stats() uses tb = ath10k_wmi_tlv_parse_alloc(...) function, which allocates memory. If any of the three error-paths are taken, this tb needs to be freed.

Signed-off-by: Christian Lamparter chunkeey@googlemail.com Signed-off-by: Kalle Valo kvalo@qca.qualcomm.com Signed-off-by: Sasha Levin alexander.levin@verizon.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/net/wireless/ath/ath10k/wmi-tlv.c | 12 +++++++++--- 1 file changed, 9 insertions(+), 3 deletions(-)

--- a/drivers/net/wireless/ath/ath10k/wmi-tlv.c +++ b/drivers/net/wireless/ath/ath10k/wmi-tlv.c @@ -1105,8 +1105,10 @@ static int ath10k_wmi_tlv_op_pull_fw_sta struct ath10k_fw_stats_pdev *dst;

src = data; - if (data_len < sizeof(*src)) + if (data_len < sizeof(*src)) { + kfree(tb); return -EPROTO; + }

data += sizeof(*src); data_len -= sizeof(*src); @@ -1126,8 +1128,10 @@ static int ath10k_wmi_tlv_op_pull_fw_sta struct ath10k_fw_stats_vdev *dst;

src = data; - if (data_len < sizeof(*src)) + if (data_len < sizeof(*src)) { + kfree(tb); return -EPROTO; + }

data += sizeof(*src); data_len -= sizeof(*src); @@ -1145,8 +1149,10 @@ static int ath10k_wmi_tlv_op_pull_fw_sta struct ath10k_fw_stats_peer *dst;

src = data; - if (data_len < sizeof(*src)) + if (data_len < sizeof(*src)) { + kfree(tb); return -EPROTO; + }

data += sizeof(*src); data_len -= sizeof(*src);

Patches currently in stable-queue which might be from chunkeey@googlemail.com are

queue-4.9/p54-don-t-unregister-leds-when-they-are-not-initialized.patch queue-4.9/ath10k-fix-potential-memory-leak-in-ath10k_wmi_tlv_op_pull_fw_stats.patch