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 4.4-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-4.4 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable@xxxxxxxxxxxxxxx> know about it. >From 1a744d2eb76aaafb997fda004ae3ae62a1538f85 Mon Sep 17 00:00:00 2001 From: Anton Bondarenko <anton.bondarenko.sama@xxxxxxxxx> 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@xxxxxxxxx> 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@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 @@ -2511,6 +2511,7 @@ 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@xxxxxxxxx are queue-4.4/usb-core-fix-potential-memory-leak-in-error-path-during-hcd-creation.patch