There isn't enough check parameter `wIndex` in the function `ehci_brcm_hub_control`;due to the size of array `port_status` is 15, so it may lead to out of bounds. Signed-off-by: Haimin Zhang <tcs_kernel@xxxxxxxxxxx> Reported-by: TCS Robot <tcs_robot@xxxxxxxxxxx> --- drivers/usb/host/ehci-brcm.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/usb/host/ehci-brcm.c b/drivers/usb/host/ehci-brcm.c index d3626bfa966b..4ca3eb9fcda9 100644 --- a/drivers/usb/host/ehci-brcm.c +++ b/drivers/usb/host/ehci-brcm.c @@ -63,7 +63,8 @@ static int ehci_brcm_hub_control( unsigned long flags; int retval, irq_disabled = 0; - status_reg = &ehci->regs->port_status[(wIndex & 0xff) - 1]; + if (wIndex && wIndex <= ports) + status_reg = &ehci->regs->port_status[(wIndex & 0xff) - 1]; /* * RESUME is cleared when GetPortStatus() is called 20ms after start --
