1 files changed, 8 insertions, 2 deletions

diff --git a/lib/parser.c b/lib/parser.c
index c43410084838..52cfa69f73df 100644
--- a/lib/parser.c
+++ b/lib/parser.c
@@ -122,13 +122,14 @@ int match_token(char *s, const match_table_t table, substring_t args[])
  *
  * Description: Given a &substring_t and a base, attempts to parse the substring
  * as a number in that base. On success, sets @result to the integer represented
- * by the string and returns 0. Returns either -ENOMEM or -EINVAL on failure.
+ * by the string and returns 0. Returns -ENOMEM, -EINVAL, or -ERANGE on failure.
  */
 static int match_number(substring_t *s, int *result, int base)
 {
         char *endp;
         char *buf;
         int ret;
+        long val;
         size_t len = s->to - s->from;
 
         buf = kmalloc(len + 1, GFP_KERNEL);
@@ -136,10 +137,15 @@ static int match_number(substring_t *s, int *result, int base)
                 return -ENOMEM;
         memcpy(buf, s->from, len);
         buf[len] = '\0';
-        *result = simple_strtol(buf, &endp, base);
+
         ret = 0;
+        val = simple_strtol(buf, &endp, base);
         if (endp == buf)
                 ret = -EINVAL;
+        else if (val < (long)INT_MIN || val > (long)INT_MAX)
+                ret = -ERANGE;
+        else
+                *result = (int) val;
         kfree(buf);
         return ret;
 }