s390/dasd: avoid buffer overrun upon API mismatch diagnostic

* libparted/labels/fdasd.c (fdasd_check_api_version): The static
buffer for the error string was too small.  Double its length.
This resolves http://bugzilla.redhat.com/693852

diff --git a/libparted/labels/fdasd.c b/libparted/labels/fdasd.c
index 6d708f6..e235dd3 100644 (file)
--- a/libparted/labels/fdasd.c
+++ b/libparted/labels/fdasd.c
@@ -754,7 +754,7 @@ fdasd_check_api_version (fdasd_anchor_t *anc, int f)
 {
        PDEBUG
        int api;
-       char s[LINE_LENGTH];
+       char s[2*LINE_LENGTH];
 
         struct stat st;
         if (fstat (f, &st) == 0 && S_ISREG (st.st_mode)) {