- markus@cvs.openbsd.org 2011/09/11 16:07:26

     [sftp-client.c]
     fix leaks in do_hardlink() and do_readlink(); bz#1921
     from Loganaden Velvindron

1 files changed, 6 insertions, 5 deletions

diff --git a/sftp-client.c b/sftp-client.c
index caa384b4e..b6d402143 100644
--- a/sftp-client.c
+++ b/sftp-client.c
@@ -1,4 +1,4 @@
-/* $OpenBSD: sftp-client.c,v 1.94 2010/12/04 00:18:01 djm Exp $ */
+/* $OpenBSD: sftp-client.c,v 1.95 2011/09/11 16:07:26 markus Exp $ */
 /*
  * Copyright (c) 2001-2004 Damien Miller <djm@openbsd.org>
  *
@@ -805,15 +805,15 @@ do_hardlink(struct sftp_conn *conn, char *oldpath, char *newpath)
         Buffer msg;
         u_int status, id;
 
-        buffer_init(&msg);
-
-        /* Send link request */
-        id = conn->msg_id++;
         if ((conn->exts & SFTP_EXT_HARDLINK) == 0) {
                 error("Server does not support hardlink@openssh.com extension");
                 return -1;
         }
 
+        buffer_init(&msg);
+
+        /* Send link request */
+        id = conn->msg_id++;
         buffer_put_char(&msg, SSH2_FXP_EXTENDED);
         buffer_put_int(&msg, id);
         buffer_put_cstring(&msg, "hardlink@openssh.com");
@@ -889,6 +889,7 @@ do_readlink(struct sftp_conn *conn, char *path)
                 u_int status = buffer_get_int(&msg);
 
                 error("Couldn't readlink: %s", fx2txt(status));
+                buffer_free(&msg);
                 return(NULL);
         } else if (type != SSH2_FXP_NAME)
                 fatal("Expected SSH2_FXP_NAME(%u) packet, got %u",