[patch] pam-0.75-pam_wheel-segfault.patch

pam-0.75-pam_wheel-segfault.patch (text/plain), 949 bytes, created by Martin Schlemmer (RETIRED) on 2002-07-30 18:52:55 UTC

--- Linux-PAM-0.75/modules/pam_wheel/pam_wheel.c.orig	Wed Jul 31 01:24:03 2002
+++ Linux-PAM-0.75/modules/pam_wheel/pam_wheel.c	Wed Jul 31 01:30:36 2002
@@ -162,9 +162,20 @@
          fromsu = tpwd->pw_name;
      } else {
          fromsu = getlogin();
-	 if (_pam_getpwnam_r(fromsu, &passwd, &tbuf, &tbuflen, &tpwd) != 0)
-	     tpwd = NULL;
-	 if((!fromsu) || (!tpwd)) {
+	 /* If this one fails, we get a segfault on calling _pam_getpwnam_r(),
+	  * so rather revert to behavior as with "ctrl & PAM_USE_UID_ARG"
+	  */
+	 if (!fromsu) {
+			 if (_pam_getpwuid_r(getuid(), &passwd, &tbuf, &tbuflen, &tpwd) != 0)
+				tpwd = NULL;
+			 if (tpwd) {
+				fromsu = tpwd->pw_name;
+			 }
+	 } else {
+	 		 if (_pam_getpwnam_r(fromsu, &passwd, &tbuf, &tbuflen, &tpwd) != 0)
+				tpwd = NULL;
+	 }
+	 if (!tpwd) {
              if (ctrl & PAM_DEBUG_ARG)
                 _pam_log(LOG_NOTICE,"who is running me ?!");
              return PAM_SERVICE_ERR;