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[HUST CSE][drivers][watchdog] validate i6300esb timeout bounds and null timeout args #11342

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Merged
Rbb666 merged 1 commit into from
Apr 22, 2026
+10 −0
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[HUST CSE][drivers][watchdog] validate i6300esb timeout bounds and null timeout args #11342

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10 changes: 10 additions & 0 deletions components/drivers/watchdog/watchdog-i6300esb.c
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Original file line number Diff line number Diff line change
Expand Up @@ -111,6 +111,11 @@ static rt_err_t i6300esb_timer_set_heartbeat(struct i6300esb_wdt *esb, rt_uint32
{
rt_uint32_t val;

if ((time < ESB_HEARTBEAT_MIN) || (time > ESB_HEARTBEAT_MAX))
{
return -RT_EINVAL;
}

/*
* We shift by 9, so if we are passed a value of 1 sec,
* val will be 1 << 9 = 512, then write that to two
Expand Down Expand Up @@ -152,6 +157,11 @@ static rt_err_t i6300esb_wdt_control(rt_watchdog_t *wdt, int cmd, void *args)
break;

case RT_DEVICE_CTRL_WDT_SET_TIMEOUT:
if (args == RT_NULL)
{
err = -RT_EINVAL;
break;
}
err = i6300esb_timer_set_heartbeat(esb, *(rt_uint32_t *)args);
break;

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