1 files changed, 4 insertions, 0 deletions

diff --git a/drivers/hwmon/lm87.c b/drivers/hwmon/lm87.c
index ba1d83d48056..a5e295826aea 100644
--- a/drivers/hwmon/lm87.c
+++ b/drivers/hwmon/lm87.c
@@ -617,6 +617,10 @@ static ssize_t set_vrm(struct device *dev, struct device_attribute *attr,
         err = kstrtoul(buf, 10, &val);
         if (err)
                 return err;
+
+        if (val > 255)
+                return -EINVAL;
+
         data->vrm = val;
         return count;
 }