charger: axp2101: Guards against out-of-bounds read

rriveramcrus · rriveramcrus · commit 6bb762f83e0a · 2025-05-27T16:21:34.000-05:00
Corrects the out-of-bounds check when reading
constant_charge_voltage_lut

Signed-off-by: Ricardo Rivera-Matos &lt;ricardo.rivera-matos@cirrus.com&gt;
diff --git a/drivers/charger/charger_axp2101.c b/drivers/charger/charger_axp2101.c
@@ -220,7 +220,7 @@ static int get_constant_charge_voltage_uv(const struct device *dev, union charge
 		return ret;
 	}
 
-	if (tmp > ARRAY_SIZE(constant_charge_voltage_lut)) {
+	if (tmp >= ARRAY_SIZE(constant_charge_voltage_lut)) {
 		return -EINVAL;
 	}
 

Original file line number	Diff line number	Diff line change
`@@ -220,7 +220,7 @@ static int get_constant_charge_voltage_uv(const struct device *dev, union charge`
`220`	`220`	`return ret;`
`221`	`221`	`}`
`222`	`222`
`223`		`- if (tmp > ARRAY_SIZE(constant_charge_voltage_lut)) {`
	`223`	`+ if (tmp >= ARRAY_SIZE(constant_charge_voltage_lut)) {`
`224`	`224`	`return -EINVAL;`
`225`	`225`	`}`
`226`	`226`