Patch "usb: core: fix potential memory leak in error path during hcd creation" has been added to the 3.18-stable tree

Patch "usb: core: fix potential memory leak in error path during hcd creation" has been added to the 3.18-stable tree

[gregkh]

This is a note to let you know that I've just added the patch titled

    usb: core: fix potential memory leak in error path during hcd creation

to the 3.18-stable tree which can be found at:
    http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

The filename of the patch is:
     usb-core-fix-potential-memory-leak-in-error-path-during-hcd-creation.patch
and it can be found in the queue-3.18 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@vger.kernel.org> know about it.


>From 1a744d2eb76aaafb997fda004ae3ae62a1538f85 Mon Sep 17 00:00:00 2001
From: Anton Bondarenko <anton.bondarenko.sama@gmail.com>
Date: Sun, 7 May 2017 01:53:46 +0200
Subject: usb: core: fix potential memory leak in error path during hcd creation

From: Anton Bondarenko <anton.bondarenko.sama@gmail.com>

commit 1a744d2eb76aaafb997fda004ae3ae62a1538f85 upstream.

Free memory allocated for address0_mutex if allocation of bandwidth_mutex
failed.

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

Signed-off-by: Anton Bondarenko <anton.bondarenko.sama@gmail.com>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

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

--- a/drivers/usb/core/hcd.c
+++ b/drivers/usb/core/hcd.c
@@ -2461,6 +2461,7 @@ struct usb_hcd *usb_create_shared_hcd(co
 		hcd->bandwidth_mutex = kmalloc(sizeof(*hcd->bandwidth_mutex),
 				GFP_KERNEL);
 		if (!hcd->bandwidth_mutex) {
+			kfree(hcd->address0_mutex);
 			kfree(hcd);
 			dev_dbg(dev, "hcd bandwidth mutex alloc failed\n");
 			return NULL;


Patches currently in stable-queue which might be from anton.bondarenko.sama@gmail.com are

queue-3.18/usb-core-fix-potential-memory-leak-in-error-path-during-hcd-creation.patch