New patch to review for coreboot: e7775eb Fix Segmentation Fault in ifdtool

[Stefan Reinauer]

Stefan Reinauer ([e-mail]) just uploaded a new patch set to gerrit, which you can find at http://review.coreboot.org/1754

-gerrit

commit e7775ebd4c14098ecfc4c2c3df59200a2f4b8267
Author: Stefan Reinauer 
Date:   Tue Sep 25 13:30:48 2012 -0700

Fix Segmentation Fault in ifdtool

If a section is bigger than the FD file it is injected into, and the FD
    lies about the size of the FD file, ifdtool would crash because reading
    in the section writes beyound the FD file in memory.

Change-Id: Idcfac2b1e2b5907fad34799e44a8abfd89190fcc
    Signed-off-by: Stefan Reinauer 
---
 util/ifdtool/ifdtool.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/util/ifdtool/ifdtool.c b/util/ifdtool/ifdtool.c
index 1b418d1..1a8bf85 100644
--- a/util/ifdtool/ifdtool.c
+++ b/util/ifdtool/ifdtool.c
@@ -397,6 +397,12 @@ void inject_region(char *filename, char *image, int size, int region_type,
    	memset(image + region.base, 0xff, offset);
    }

+	if (size < region.base + offset + region_size) {
+		fprintf(stderr, "Output file is too small. (%d < %d)\n",
+			size, region.base + offset + region_size);
+		exit(EXIT_FAILURE);
+	}
+
    if (read(region_fd, image + region.base + offset, region_size)
    						!= region_size) {
    	perror("Could not read file");