diff -up ecryptfs-utils-106/src/pam_ecryptfs/pam_ecryptfs.c.fixexecgid ecryptfs-utils-106/src/pam_ecryptfs/pam_ecryptfs.c --- ecryptfs-utils-106/src/pam_ecryptfs/pam_ecryptfs.c.fixexecgid 2015-03-30 11:13:48.419194024 +0200 +++ ecryptfs-utils-106/src/pam_ecryptfs/pam_ecryptfs.c 2015-03-30 11:16:44.434863028 +0200 @@ -365,8 +365,10 @@ static int private_dir(pam_handle_t *pam _exit(0); } clearenv(); - if (setgroups(1, &pwd->pw_gid) < 0 || setgid(pwd->pw_gid) < 0) + if (initgroups(pwd->pw_name, pwd->pw_gid) != 0) { + syslog(LOG_ERR, "Unable to set user's groups : %m"); _exit(-1); + } /* run mount.ecryptfs_private as the user */ if (setresuid(pwd->pw_uid, pwd->pw_uid, pwd->pw_uid) < 0) _exit(-1); @@ -380,8 +382,10 @@ static int private_dir(pam_handle_t *pam _exit(0); } clearenv(); - if (setgroups(1, &pwd->pw_gid) < 0 || setgid(pwd->pw_gid) < 0) + if (initgroups(pwd->pw_name, pwd->pw_gid) != 0) { + syslog(LOG_ERR, "Unable to set user's groups : %m"); _exit(-1); + } /* run umount.ecryptfs_private as the user */ if (setresuid(pwd->pw_uid, pwd->pw_uid, pwd->pw_uid) < 0) _exit(-1);