Re: [PATCH 1/9] serial: arc_uart: Fix out-of-bounds access through DT alias

On Tue, Feb 20, 2018 at 10:40 AM, Geert Uytterhoeven wrote: > The arc_uart_ports[] array is indexed using a value derived from the > "serialN" alias in DT, which may lead to an out-of-bounds access. > > Fix this by adding a range check. > > Note that the array size is defined by a Kconfig symbol >

[PATCH 1/9] serial: arc_uart: Fix out-of-bounds access through DT alias

The arc_uart_ports[] array is indexed using a value derived from the "serialN" alias in DT, which may lead to an out-of-bounds access. Fix this by adding a range check. Note that the array size is defined by a Kconfig symbol (CONFIG_SERIAL_ARC_NR_PORTS), so this can even be triggered using a legi