| From 913084d66c24c972bea2f5eb991183564fe6d921 Mon Sep 17 00:00:00 2001 |
| From: Qiujun Huang <hqjagain@gmail.com> |
| Date: Wed, 25 Mar 2020 15:06:46 +0800 |
| Subject: [PATCH] staging: wlan-ng: fix ODEBUG bug in prism2sta_disconnect_usb |
| |
| commit a1f165a6b738f0c9d744bad4af7a53909278f5fc upstream. |
| |
| We should cancel hw->usb_work before kfree(hw). |
| |
| Reported-by: syzbot+6d2e7f6fa90e27be9d62@syzkaller.appspotmail.com |
| Signed-off-by: Qiujun Huang <hqjagain@gmail.com> |
| Cc: stable <stable@vger.kernel.org> |
| Link: https://lore.kernel.org/r/1585120006-30042-1-git-send-email-hqjagain@gmail.com |
| Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
| Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com> |
| |
| diff --git a/drivers/staging/wlan-ng/prism2usb.c b/drivers/staging/wlan-ng/prism2usb.c |
| index b5ba176004c1..d8d86761b790 100644 |
| --- a/drivers/staging/wlan-ng/prism2usb.c |
| +++ b/drivers/staging/wlan-ng/prism2usb.c |
| @@ -180,6 +180,7 @@ static void prism2sta_disconnect_usb(struct usb_interface *interface) |
| |
| 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 |
| -- |
| 2.7.4 |
| |