From: Guodong Liu <guodong.liu@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx> When eint virtual eint number is greater than gpio number, it maybe produce 'desc[eint_n]' size globle-out-of-bounds issue. Signed-off-by: Zhiyong Tao <zhiyong.tao@xxxxxxxxxxxx> Signed-off-by: Guodong Liu <guodong.liu@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx> --- drivers/pinctrl/mediatek/pinctrl-mtk-common-v2.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/pinctrl/mediatek/pinctrl-mtk-common-v2.c b/drivers/pinctrl/mediatek/pinctrl-mtk-common-v2.c index 45ebdeba985a..9d57c897835c 100644 --- a/drivers/pinctrl/mediatek/pinctrl-mtk-common-v2.c +++ b/drivers/pinctrl/mediatek/pinctrl-mtk-common-v2.c @@ -286,7 +286,8 @@ static int mtk_xt_get_gpio_n(void *data, unsigned long eint_n, *gpio_chip = &hw->chip; /* Be greedy to guess first gpio_n is equal to eint_n */ - if (desc[eint_n].eint.eint_n == eint_n) + if (((*gpio_chip)->ngpio > eint_n) && + desc[eint_n].eint.eint_n == eint_n) *gpio_n = eint_n; else *gpio_n = mtk_xt_find_eint_num(hw, eint_n); -- 2.25.1
