2 files changed, 8 insertions, 0 deletions

diff --git a/drivers/clocksource/nomadik-mtu.c b/drivers/clocksource/nomadik-mtu.c
index 435e54d55bbd..071f6eadfea2 100644
--- a/drivers/clocksource/nomadik-mtu.c
+++ b/drivers/clocksource/nomadik-mtu.c
@@ -240,6 +240,7 @@ void __init nmdk_timer_init(void __iomem *base, int irq)
         /* Timer 1 is used for events, register irq and clockevents */
         setup_irq(irq, &nmdk_timer_irq);
         nmdk_clkevt.cpumask = cpumask_of(0);
+        nmdk_clkevt.irq = irq;
         clockevents_config_and_register(&nmdk_clkevt, rate, 2, 0xffffffffU);
 
         mtu_delay_timer.read_current_timer = &nmdk_timer_read_current_timer;
diff --git a/kernel/posix-timers.c b/kernel/posix-timers.c
index 10349d5f2ec3..7edfe4b901e7 100644
--- a/kernel/posix-timers.c
+++ b/kernel/posix-timers.c
@@ -639,6 +639,13 @@ static struct k_itimer *__lock_timer(timer_t timer_id, unsigned long *flags)
 {
         struct k_itimer *timr;
 
+        /*
+         * timer_t could be any type >= int and we want to make sure any
+         * @timer_id outside positive int range fails lookup.
+         */
+        if ((unsigned long long)timer_id > INT_MAX)
+                return NULL;
+
         rcu_read_lock();
         timr = idr_find(&posix_timers_id, (int)timer_id);
         if (timr) {