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

PATCH [email protected] 1 participant 1 message Jun 18, 2017

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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 <[email protected]> know about it.

Quoted 1 line

From 1a744d2eb76aaafb997fda004ae3ae62a1538f85 Mon Sep 17 00:00:00 2001

From: Anton Bondarenko <[email protected]>
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 <[email protected]>

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")
---
 drivers/usb/core/hcd.c |    1 +
 1 file changed, 1 insertion(+)
drivers/usb/core/hcd.c +1 -0
@@ -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 [email protected] are

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