mdadm/mdopen: fix coverity issue STRING_OVERFLOW

Fix string overflow problems in mdopen.c

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

diff --git a/mdopen.c b/mdopen.c
index c9fda131558bcefab1d842a7e1d2a2c2ab31d855..e49defb6744d0691b322aee7a3bf7e7699206267 100644 (file)
--- a/mdopen.c
+++ b/mdopen.c
@@ -376,7 +376,7 @@ int create_mddev(char *dev, char *name, int autof, int trustworthy,
 
        sprintf(devname, "/dev/%s", devnm);
 
-       if (dev && dev[0] == '/')
+       if (dev && dev[0] == '/' && strlen(dev) < 400)
                strcpy(chosen, dev);
        else if (cname[0] == 0)
                strcpy(chosen, devname);