On Tue, Jul 01, 2014 at 08:39:06AM +0200, Jiri Kosina wrote: > On Mon, 30 Jun 2014, Nicholas Krause wrote: > > > Fixes a null pointer in appleir_input_configured due to reading > > into wrong size array. Changed the variable to input_dev->keycodemax. > > This is a stale changelog from the previous buggy version. > > > Signed-off-by: Nicholas Krause <xerofoify@xxxxxxxxx> > > --- > > drivers/hid/hid-appleir.c | 2 +- > > 1 file changed, 1 insertion(+), 1 deletion(-) > > > > diff --git a/drivers/hid/hid-appleir.c b/drivers/hid/hid-appleir.c > > index 0e6a42d..cc02df4 100644 > > --- a/drivers/hid/hid-appleir.c > > +++ b/drivers/hid/hid-appleir.c > > @@ -272,7 +272,7 @@ static void appleir_input_configured(struct hid_device *hid, > > input_dev->evbit[0] = BIT(EV_KEY) | BIT(EV_REP); > > > > memcpy(appleir->keymap, appleir_key_table, sizeof(appleir->keymap)); > > - for (i = 0; i < ARRAY_SIZE(appleir_key_table); i++) > > + for (i = 0; i < appleir->keymap; i++) > > This is wrong. appleir->keymap is an array, and you want to count its > elements. > But where the claim of 'null pointer' is coming from (or reading/writing past the array for that matter)? Replacing appleir_key_table with appleir->keymap is a noop anyway because: unsigned short keymap[ARRAY_SIZE(appleir_key_table)]; although one may argue is slightly nicer since it is used in memcpy line earlier. -- Mateusz Guzik -- To unsubscribe from this list: send the line "unsubscribe linux-input" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
