net: sched: sch: Fix off by one in htb_activate_prios()

The > needs be >= to prevent an out of bounds access.

Fixes: de5ca4c ("net: sched: sch: Bounds check priority")
Signed-off-by: Dan Carpenter <[email protected]>
Reviewed-by: Simon Horman <[email protected]>
Reviewed-by: Kees Cook <[email protected]>
Link: https://lore.kernel.org/r/Y+D+KN18FQI2DKLq@kili
Signed-off-by: Jakub Kicinski <[email protected]>

Author: error27

net/sched/sch_htb.c

@@ -433,7 +433,7 @@ static void htb_activate_prios(struct htb_sched *q, struct htb_class *cl)
 		while (m) {
 			unsigned int prio = ffz(~m);
 
-			if (WARN_ON_ONCE(prio > ARRAY_SIZE(p->inner.clprio)))
+			if (WARN_ON_ONCE(prio >= ARRAY_SIZE(p->inner.clprio)))
 				break;
 			m &= ~(1 << prio);