diff -up ecryptfs-utils-87/src/pam_ecryptfs/pam_ecryptfs.c.fixexecgid ecryptfs-utils-87/src/pam_ecryptfs/pam_ecryptfs.c

--- ecryptfs-utils-87/src/pam_ecryptfs/pam_ecryptfs.c.fixexecgid	2011-07-25 16:38:48.040555555 +0200

+++ ecryptfs-utils-87/src/pam_ecryptfs/pam_ecryptfs.c	2011-07-25 16:52:22.751025667 +0200

@@ -33,6 +33,7 @@

 #include <errno.h>

 #include <syslog.h>

 #include <pwd.h>

+#include <grp.h>

 #include <sys/types.h>

 #include <sys/wait.h>

 #include <sys/types.h>

@@ -303,6 +304,12 @@ static int private_dir(pam_handle_t *pam

 		return 1;

 	}

 	if (pid == 0) {

+		/* set user's groups, we may need ecryptfs group for (u)mount */

+		if (initgroups(pwd->pw_name, pwd->pw_gid) != 0) {

+			syslog(LOG_ERR, "Unable to set user's groups : %m");

+			_exit(255);

+		}

+

 		if (mount == 1) {

 		        if ((asprintf(&recorded,

 			    "%s/.ecryptfs/.wrapped-passphrase.recorded",