From: Qiujun Huang <hqjagain@xxxxxxxxx> commit a1f165a6b738f0c9d744bad4af7a53909278f5fc upstream. We should cancel hw->usb_work before kfree(hw). Reported-by: syzbot+6d2e7f6fa90e27be9d62@xxxxxxxxxxxxxxxxxxxxxxxxx Signed-off-by: Qiujun Huang <hqjagain@xxxxxxxxx> Cc: stable <stable@xxxxxxxxxxxxxxx> Link: https://lore.kernel.org/r/1585120006-30042-1-git-send-email-hqjagain@xxxxxxxxx Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> --- drivers/staging/wlan-ng/prism2usb.c | 1 + 1 file changed, 1 insertion(+) --- a/drivers/staging/wlan-ng/prism2usb.c +++ b/drivers/staging/wlan-ng/prism2usb.c @@ -179,6 +179,7 @@ static void prism2sta_disconnect_usb(str cancel_work_sync(&hw->link_bh); cancel_work_sync(&hw->commsqual_bh); + cancel_work_sync(&hw->usb_work); /* Now we complete any outstanding commands * and tell everyone who is waiting for their
