added a check to avoid freeing null pointer

2018-01-22 17:05:52 +05:30 · 2018-01-22 17:05:52 +05:30 · 97bb5b2b6d
commit 97bb5b2b6d
parent c0f0c67864
1 changed files with 1 additions and 0 deletions
--- a/src/newusers.c
+++ b/src/newusers.c
@ -290,6 +290,7 @@ static int add_group (const char *name, const char *gid, gid_t *ngid, uid_t uid)
 		fprintf (stderr,
 		         _("%s: invalid group name '%s'\n"),
 		         Prog, grent.gr_name);
+		if (grent.gr_name)
 		free (grent.gr_name);
 		return -1;
 	}