mdadm/Grow: fix coverity issue STRING_OVERFLOW

Fix string overflow problems in Grow.c

Signed-off-by: Xiao Ni <xni@redhat.com>
Signed-off-by: Mariusz Tkaczyk <mariusz.tkaczyk@linux.intel.com>

1 files changed, 1 insertions, 1 deletions

diff --git a/Grow.c b/Grow.c
index 907a6e1b..a5f9027d 100644
--- a/Grow.c
+++ b/Grow.c
@@ -1694,7 +1694,7 @@ char *analyse_change(char *devname, struct mdinfo *info, struct reshape *re)
 					/* Current RAID6 layout has a RAID5
 					 * equivalent - good
 					 */
-					strcat(strcpy(layout, ls), "-6");
+					snprintf(layout, 40, "%s-6", ls);
 					l = map_name(r6layout, layout);
 					if (l == UnSet)
 						return "Cannot find RAID6 layout to convert to";