From: Emiliano Ingrassia ingrassia@epigenesys.com
commit 1cd17f7f0def31e3695501c4f86cd3faf8489840 upstream.
Explicitly initialize URB structure urb_list field in usb_init_urb(). This field can be potentially accessed uninitialized and its initialization is coherent with the usage of list_del_init() in usb_hcd_unlink_urb_from_ep() and usb_giveback_urb_bh() and its explicit initialization in usb_hcd_submit_urb() error path.
Signed-off-by: Emiliano Ingrassia ingrassia@epigenesys.com Cc: stable stable@vger.kernel.org Link: https://lore.kernel.org/r/20191127160355.GA27196@ingrassia.epigenesys.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org
--- drivers/usb/core/urb.c | 1 + 1 file changed, 1 insertion(+)
--- a/drivers/usb/core/urb.c +++ b/drivers/usb/core/urb.c @@ -40,6 +40,7 @@ void usb_init_urb(struct urb *urb) if (urb) { memset(urb, 0, sizeof(*urb)); kref_init(&urb->kref); + INIT_LIST_HEAD(&urb->urb_list); INIT_LIST_HEAD(&urb->anchor_list); } }