[PATCH 4.11 48/78] usb: core: fix potential memory leak in error path during hcd creation

From: Greg Kroah-Hartman
Date: Mon Jun 19 2017 - 12:12:16 EST

4.11-stable review patch. If anyone has any objections, please let me know.


From: Anton Bondarenko <anton.bondarenko.sama@xxxxxxxxx>

commit 1a744d2eb76aaafb997fda004ae3ae62a1538f85 upstream.

Free memory allocated for address0_mutex if allocation of bandwidth_mutex

Fixes: feb26ac31a2a ("usb: core: hub: hub_port_init lock controller instead of bus")

Signed-off-by: Anton Bondarenko <anton.bondarenko.sama@xxxxxxxxx>
Acked-by: Alan Stern <stern@xxxxxxxxxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>

drivers/usb/core/hcd.c | 1 +
1 file changed, 1 insertion(+)

--- a/drivers/usb/core/hcd.c
+++ b/drivers/usb/core/hcd.c
@@ -2535,6 +2535,7 @@ struct usb_hcd *usb_create_shared_hcd(co
hcd->bandwidth_mutex = kmalloc(sizeof(*hcd->bandwidth_mutex),
if (!hcd->bandwidth_mutex) {
+ kfree(hcd->address0_mutex);
dev_dbg(dev, "hcd bandwidth mutex alloc failed\n");
return NULL;