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drivers: can: loopback: guard against out-of-bounds filter IDs

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Guard against out-of-bounds filter IDs when removing RX filters.

Signed-off-by: Henrik Brix Andersen <hebad@vestas.com>
This commit is contained in:
Henrik Brix Andersen 2022-10-31 12:58:46 +01:00 • committed by Carles Cufí
commit 566c64f0c0
1 changed files with 5 additions and 0 deletions
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5
drivers/can/can_loopback.c
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@ -203,6 +203,11 @@ static void can_loopback_remove_rx_filter(const struct device *dev, int filter_i
{ {
struct can_loopback_data *data = dev->data; struct can_loopback_data *data = dev->data;
if (filter_id >= ARRAY_SIZE(data->filters)) {
LOG_ERR("filter ID %d out-of-bounds", filter_id);
return;
}
LOG_DBG("Remove filter ID: %d", filter_id); LOG_DBG("Remove filter ID: %d", filter_id);
k_mutex_lock(&data->mtx, K_FOREVER); k_mutex_lock(&data->mtx, K_FOREVER);
data->filters[filter_id].rx_cb = NULL; data->filters[filter_id].rx_cb = NULL;