diff options
| author | Johan Hovold <johan@kernel.org> | 2019-09-19 14:12:34 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2019-10-11 18:18:37 +0200 |
| commit | 481376cc2ccb32113a2492ed1f8de32b5c777b00 (patch) | |
| tree | d5efd5e1b8033c79b2664408e76e0e9d965624b2 | |
| parent | baba981bfea8e8e80a5d42c0b1233e029360746a (diff) | |
| download | linux-stable-481376cc2ccb32113a2492ed1f8de32b5c777b00.tar.gz linux-stable-481376cc2ccb32113a2492ed1f8de32b5c777b00.tar.bz2 linux-stable-481376cc2ccb32113a2492ed1f8de32b5c777b00.zip | |
ieee802154: atusb: fix use-after-free at disconnect
commit 7fd25e6fc035f4b04b75bca6d7e8daa069603a76 upstream.
The disconnect callback was accessing the hardware-descriptor private
data after having having freed it.
Fixes: 7490b008d123 ("ieee802154: add support for atusb transceiver")
Cc: stable <stable@vger.kernel.org> # 4.2
Cc: Alexander Aring <alex.aring@gmail.com>
Reported-by: syzbot+f4509a9138a1472e7e80@syzkaller.appspotmail.com
Signed-off-by: Johan Hovold <johan@kernel.org>
Signed-off-by: Stefan Schmidt <stefan@datenfreihafen.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -rw-r--r-- | drivers/net/ieee802154/atusb.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/net/ieee802154/atusb.c b/drivers/net/ieee802154/atusb.c index ef688518ad77..8e2cbc88df98 100644 --- a/drivers/net/ieee802154/atusb.c +++ b/drivers/net/ieee802154/atusb.c @@ -907,10 +907,11 @@ static void atusb_disconnect(struct usb_interface *interface) ieee802154_unregister_hw(atusb->hw); + usb_put_dev(atusb->usb_dev); + ieee802154_free_hw(atusb->hw); usb_set_intfdata(interface, NULL); - usb_put_dev(atusb->usb_dev); pr_debug("atusb_disconnect done\n"); } |