diff -up Linux-PAM-1.1.7/modules/pam_tty_audit/pam_tty_audit.c.tty-audit-init Linux-PAM-1.1.7/modules/pam_tty_audit/pam_tty_audit.c

--- Linux-PAM-1.1.7/modules/pam_tty_audit/pam_tty_audit.c.tty-audit-init	2013-08-28 10:53:40.000000000 +0200

+++ Linux-PAM-1.1.7/modules/pam_tty_audit/pam_tty_audit.c	2013-10-04 14:51:19.944994905 +0200

@@ -36,6 +36,7 @@

    USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH

    DAMAGE. */

+#include "config.h"

 #include <errno.h>

 #include <fnmatch.h>

 #include <stdlib.h>

@@ -108,7 +109,7 @@ nl_recv (int fd, unsigned type, void *bu

   struct msghdr msg;

   struct nlmsghdr nlm;

   struct iovec iov[2];

-  ssize_t res;

+  ssize_t res, resdiff;

  again:

   iov[0].iov_base = &nlm;

@@ -160,12 +161,17 @@ nl_recv (int fd, unsigned type, void *bu

   res = recvmsg (fd, &msg, 0);

   if (res == -1)

     return -1;

-  if ((size_t)res != NLMSG_LENGTH (size)

+  resdiff = NLMSG_LENGTH(size) - (size_t)res;

+  if (resdiff < 0

       || nlm.nlmsg_type != type)

     {

       errno = EIO;

       return -1;

     }

+  else if (resdiff > 0)

+    {

+      memset((char *)buf + size - resdiff, 0, resdiff);

+    }

   return 0;

 }

@@ -275,6 +281,8 @@ pam_sm_open_session (pam_handle_t *pamh,

       return PAM_SESSION_ERR;

     }

+  memcpy(&new_status, old_status, sizeof(new_status));

+

   new_status.enabled = (command == CMD_ENABLE ? 1 : 0);

 #ifdef HAVE_STRUCT_AUDIT_TTY_STATUS_LOG_PASSWD

   new_status.log_passwd = log_passwd;