NFS: Use kmemdup_nul() in nfs_readdir_make_qstr()

The directory strings stored in the readdir cache may be used with
printk(), so it is better to ensure they are nul-terminated.

Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
Reviewed-by: Benjamin Coddington <bcodding@redhat.com>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>

diff --git a/fs/nfs/dir.c b/fs/nfs/dir.c
index d95c2c94bd8764229669af8082451468d84881e8..5a8ff7e97ce34a611430cf723d86e0674930cc9f 100644 (file)
--- a/fs/nfs/dir.c
+++ b/fs/nfs/dir.c
@@ -198,7 +198,7 @@ static
 int nfs_readdir_make_qstr(struct qstr *string, const char *name, unsigned int len)
 {
        string->len = len;
-       string->name = kmemdup(name, len, GFP_KERNEL);
+       string->name = kmemdup_nul(name, len, GFP_KERNEL);
        if (string->name == NULL)
                return -ENOMEM;
        /*