SMATCH correctly found an off-by-one error: drivers/tty/serial/mxs-auart.c:889 auart_console_write() error: buffer overflow 'auart_port' 5 <= 5 Signed-off-by: Wolfram Sang <wsa@xxxxxxxxxxxxx> --- I'd say this is suitable for stable. drivers/tty/serial/mxs-auart.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/tty/serial/mxs-auart.c b/drivers/tty/serial/mxs-auart.c index 3c2d8be..62e7d3b 100644 --- a/drivers/tty/serial/mxs-auart.c +++ b/drivers/tty/serial/mxs-auart.c @@ -883,7 +883,7 @@ auart_console_write(struct console *co, const char *str, unsigned int count) unsigned int old_ctrl0, old_ctrl2; unsigned int to = 1000; - if (co->index > MXS_AUART_PORTS || co->index < 0) + if (co->index >= MXS_AUART_PORTS || co->index < 0) return; s = auart_port[co->index]; -- 1.7.10.4 -- To unsubscribe from this list: send the line "unsubscribe linux-serial" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html