Upgrade to 4.4.50-rt62

[kvmfornfv.git] / kernel / fs / cifs / smb2file.c

diff --git a/kernel/fs/cifs/smb2file.c b/kernel/fs/cifs/smb2file.c
index f9e766f..b2aff0c 100644 (file)
--- a/kernel/fs/cifs/smb2file.c
+++ b/kernel/fs/cifs/smb2file.c
@@ -260,7 +260,7 @@ smb2_push_mandatory_locks(struct cifsFileInfo *cfile)
         * and check it for zero before using.
         */
        max_buf = tlink_tcon(cfile->tlink)->ses->server->maxBuf;
-       if (!max_buf) {
+       if (max_buf < sizeof(struct smb2_lock_element)) {
                free_xid(xid);
                return -EINVAL;
        }