| From | Ben Hutchings <> | Date | Fri, 24 Apr 2020 00:05:11 +0100 | Subject | [PATCH 3.16 084/245] usb: core: urb: fix URB structure initialization function |
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3.16.83-rc1 review patch. If anyone has any objections, please let me know.
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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> Link: https://lore.kernel.org/r/20191127160355.GA27196@ingrassia.epigenesys.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Ben Hutchings <ben@decadent.org.uk> --- 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); } }
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