2.23.2-3: #987787

2.24-su-suppress-PAM-info-messages.patch

@@ -0,0 +1,48 @@
+diff -up util-linux-2.23.2/login-utils/su-common.c.kzak util-linux-2.23.2/login-utils/su-common.c
+--- util-linux-2.23.2/login-utils/su-common.c.kzak	2013-07-30 10:39:26.223738407 +0200
++++ util-linux-2.23.2/login-utils/su-common.c	2013-09-09 09:32:05.497238691 +0200
+@@ -111,6 +111,9 @@ static int same_session = 0;
+ /* SU_MODE_{RUNUSER,SU} */
+ static int su_mode;
+
++/* Don't print PAM info messages (Last login, etc.). */
++static int suppress_pam_info;
++
+ static bool _pam_session_opened;
+ static bool _pam_cred_established;
+ static sig_atomic_t volatile caught_signal = false;
+@@ -208,10 +211,23 @@ static void log_btmp(struct passwd const
+	updwtmp(_PATH_BTMP, &ut);
+ }
+
++
++static int su_pam_conv(int num_msg, const struct pam_message **msg,
++                       struct pam_response **resp, void *appdata_ptr)
++{
++	if (suppress_pam_info
++	    && num_msg == 1
++	    && msg
++	    && msg[0]->msg_style == PAM_TEXT_INFO)
++		return PAM_SUCCESS;
++
++	return misc_conv(num_msg, msg, resp, appdata_ptr);
++}
++
+ static struct pam_conv conv =
+ {
+-  misc_conv,
+-  NULL
++	su_pam_conv,
++	NULL
+ };
+
+ static void
+@@ -902,6 +918,9 @@ su_main (int argc, char **argv, int mode
+
+   init_groups (pw, groups, num_supp_groups);
+
++  if (!simulate_login || command)
++    suppress_pam_info = 1;		/* don't print PAM info messages */
++
+   create_watching_parent ();
+   /* Now we're in the child.  */

util-linux.spec

@@ -77,8 +77,10 @@ Requires: libmount = %{version}-%{release}
 # 151635 - makeing /var/log/lastlog
 Patch0: 2.23-login-lastlog-create.patch
 
-### Backport from v2.24 + #972457
+# v2.24 backport: #972457
 Patch1: 2.24-agetty-clocal.patch
+# v2.24 backport: #987787 - Remove lastlogin from su
+Patch2: 2.24-su-suppress-PAM-info-messages.patch
 
 %description
 The util-linux package contains a large variety of low-level system
@@ -797,6 +799,7 @@ fi
 %changelog
 * Mon Sep  9 2013 Karel Zak <kzak@redhat.com> 2.23.2-3
 - refresh and rename patches
+- fix #987787 - Remove lastlogin from su
 
 * Thu Aug  1 2013 Karel Zak <kzak@redhat.com> 2.23.2-2
 - fix 990083 - su doesn't work with pam_ecryptfs