From db5ae694f5e18c847b0e0dbe9a3d2c95239a7d33 Mon Sep 17 00:00:00 2001

From: Vladimir Serbinenko <phcoder@gmail.com>

Date: Sun, 26 Jan 2014 02:36:05 +0100

Subject: [PATCH 046/260] * grub-core/term/serial.c (grub_serial_register): Fix

 invalid free. Ensure that pointers are inited to NULL and that pointers are

 not accessed after free.

---

 ChangeLog               | 5 +++++

 grub-core/term/serial.c | 8 ++++----

 2 files changed, 9 insertions(+), 4 deletions(-)

diff --git a/ChangeLog b/ChangeLog

index c93f11fbb..67b4d5c2a 100644

--- a/ChangeLog

+++ b/ChangeLog

@@ -1,3 +1,8 @@

+2014-01-26  Vladimir Serbinenko  <phcoder@gmail.com>

+

+	* grub-core/term/serial.c (grub_serial_register): Fix invalid free.

+	Ensure that pointers are inited to NULL and that pointers are not

+	accessed after free.

 2014-01-25  Andrey Borzenkov <arvidjaar@gmail.com>

diff --git a/grub-core/term/serial.c b/grub-core/term/serial.c

index b581a763e..c9b5574ae 100644

--- a/grub-core/term/serial.c

+++ b/grub-core/term/serial.c

@@ -338,23 +338,23 @@ grub_serial_register (struct grub_serial_port *port)

       grub_free (indata);

       return grub_errno;

     }

-  

-  out = grub_malloc (sizeof (*out));

+

+  out = grub_zalloc (sizeof (*out));

   if (!out)

     {

-      grub_free (in);

       grub_free (indata);

       grub_free ((char *) in->name);

+      grub_free (in);

       return grub_errno;

     }

   outdata = grub_malloc (sizeof (*outdata));

   if (!outdata)

     {

-      grub_free (in);

       grub_free (indata);

       grub_free ((char *) in->name);

       grub_free (out);

+      grub_free (in);

       return grub_errno;

     }

-- 

2.13.0