commit 7a86be6e5f18ba99b25d75c555ce56fe1fcea325
Author: Siddhesh Poyarekar <siddhesh@redhat.com>
Date:   Thu Mar 28 11:45:47 2013 +0530

    Don't add input group during initgroups_dyn in hesiod
    
    Fixes BZ #15304.
    
    The *initgroups_dyn functions are called with a group argument.  This
    group gid is usually skipped while populating the grouplist since the
    caller adds that group id in advance.
    
    The hesiod initgroups_dyn implementation however adds the group gid to
    the list if it does not already exist.  While it works fine for the
    usual initgroups, it breaks nscd since it calls initgroups_dyn with -1
    as the gid (to have all groups included).

diff --git a/hesiod/nss_hesiod/hesiod-grp.c b/hesiod/nss_hesiod/hesiod-grp.c
index c2ae166..b11952f 100644
--- a/hesiod/nss_hesiod/hesiod-grp.c
+++ b/hesiod/nss_hesiod/hesiod-grp.c
@@ -191,33 +191,6 @@ _nss_hesiod_initgroups_dyn (const char *user, gid_t group, long int *start,
       return errno == ENOENT ? NSS_STATUS_NOTFOUND : NSS_STATUS_UNAVAIL;
     }
 
-  if (!internal_gid_in_list (groups, group, *start))
-    {
-      if (__builtin_expect (*start == *size, 0))
-	{
-	  /* Need a bigger buffer.  */
-	  gid_t *newgroups;
-	  long int newsize;
-
-	  if (limit > 0 && *size == limit)
-	    /* We reached the maximum.  */
-	    goto done;
-
-	  if (limit <= 0)
-	    newsize = 2 * *size;
-	  else
-	    newsize = MIN (limit, 2 * *size);
-
-	  newgroups = realloc (groups, newsize * sizeof (*groups));
-	  if (newgroups == NULL)
-	    goto done;
-	  *groupsp = groups = newgroups;
-	  *size = newsize;
-	}
-
-      groups[(*start)++] = group;
-    }
-
   save_errno = errno;
 
   p = *list;