[coreboot-gerrit] Patch set updated for coreboot: 13515d1 util/cbfstool: Make cbfs_image_delete() NULL-tolerant.

[Edward O'Callaghan]

Edward O'Callaghan ([e-mail]) just uploaded a new patch set to gerrit, which you can find at http://review.coreboot.org/5353

-gerrit

commit 13515d15ba2842f33948b312e87e7ae292287951
Author: Edward O'Callaghan 
Date:   Sun Mar 9 00:05:18 2014 +1100

util/cbfstool: Make cbfs_image_delete() NULL-tolerant.

This fixes a double free crash that occurs when a call to
    cbfs_image_from_file() fails in cbfs_extract() and falls though to
    cbfs_image_delete() with a NULL-pointer.

To reproduce the crash pass the following arguments where the files
    passed, in fact, do not exist. As follows:
    ./cbfstool build/coreboot.rom extract -n config -f /tmp/config.txt

Change-Id: I2213ff175d0703705a0ec10271b30bb26b6f8d0a
    Signed-off-by: Edward O'Callaghan 
---
 util/cbfstool/cbfs_image.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/util/cbfstool/cbfs_image.c b/util/cbfstool/cbfs_image.c
index b9d5f28..12bc2fe 100644
--- a/util/cbfstool/cbfs_image.c
+++ b/util/cbfstool/cbfs_image.c
@@ -300,6 +300,9 @@ int cbfs_image_write_file(struct cbfs_image *image, const char *filename)

int cbfs_image_delete(struct cbfs_image *image)
 {
+	if (image == NULL)
+		return 0;
+
    buffer_delete(&image->buffer);
    image->header = NULL;
    return 0;