Pavel Andrianov [off-list ref] wrote:

lbs_mac_event_disconnected may free priv->currenttxskb
while lbs_hard_start_xmit accesses to it.
The patch adds a spinlock for mutual exclusion.

Tested on OLPC XO-1 (usb8388) and XO-1.5 (sd8686) with v4.7-rc3.

Confirmed that lbs_mac_event_disconnected is being called on the
station when hostapd on access point is given SIGHUP.

Signed-off-by: Pavel <redacted>
Tested-by: James Cameron <redacted>
Acked-by: Vaishali Thakkar <redacted>

Thanks, 1 patch applied to wireless-drivers-next.git:

f52b041aed77 libertas: Add spinlock to avoid race condition

-- 
Sent by pwcli
https://patchwork.kernel.org/patch/9178477/