udev_device.c: avoid off-by-one overflow

2021-05-26 13:37:02 +03:00
parent 145e2c814f
commit 4b044ae52c
1 changed files with 3 additions and 1 deletions
--- a/udev_device.c
+++ b/udev_device.c
@@ -363,7 +363,9 @@ static void make_bit(unsigned long *arr, int cnt, const char *str)
        }
    }

-    arr[i] = strtoul(str, NULL, 16);
+    if (i < cnt) {
+        arr[i] = strtoul(str, NULL, 16);
+    }
 }

 static int test_bit(unsigned long *arr, unsigned long bit)