[libexif-cvs] libexif/libexif exif-loader.c,1.25,1.26

[Lutz M. <lu...@us...>]

Update of /cvsroot/libexif/libexif/libexif
In directory sc8-pr-cvs6.sourceforge.net:/tmp/cvs-serv13154/libexif

Modified Files:
	exif-loader.c 
Log Message:
2007-12-14  Lutz Mueller <lu...@us...>

	Bug pointed out by Meder Kydyraliev, Google Security Team:

	* libexif/exif-loader.c: (exif_loader_write) Ignore buffers of
	zero length.


Index: exif-loader.c
===================================================================
RCS file: /cvsroot/libexif/libexif/libexif/exif-loader.c,v
retrieving revision 1.25
retrieving revision 1.26
diff -u -p -d -r1.25 -r1.26
--- exif-loader.c	26 Jun 2007 02:30:32 -0000	1.25
+++ exif-loader.c	14 Dec 2007 19:53:53 -0000	1.26
@@ -176,6 +176,8 @@ exif_loader_write (ExifLoader *eld, unsi
 		break;
 	}
 
+	if (!len)
+		return 1;
 	exif_log (eld->log, EXIF_LOG_CODE_DEBUG, "ExifLoader",
 		  "Scanning %i byte(s) of data...", len);