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Fix out of bounds access in dirty_input code

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This commit is contained in:
Dwedit 2018-05-28 12:01:18 -05:00
parent 23b0444afe
commit becb6dee16
1 changed files with 7 additions and 3 deletions
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10
runahead/dirty_input.c
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@ -59,8 +59,11 @@ static void input_state_set_last(unsigned port, unsigned device,
for (i = 0; i < (unsigned)input_state_list->size; i++)
{
element = (InputListElement*)input_state_list->data[i];
if ( element->port == port
&& element->device == device && element->index == index)
if ( (element->port == port ) &&
(element->device == device) &&
(element->index == index) &&
(id >= 0 && id < (sizeof(element->state) / sizeof(int16_t)))
)
{
element->state[id] = value;
return;
@ -91,7 +94,8 @@ static int16_t input_state_get_last(unsigned port,
if ( (element->port == port) &&
(element->device == device) &&
(element->index == index)
(element->index == index) &&
(id >= 0 && id < (sizeof(element->state) / sizeof(int16_t)))
)
return element->state[id];
}