X-Git-Url: https://gerrit.opnfv.org/gerrit/gitweb?a=blobdiff_plain;f=kernel%2Ffs%2Fcifs%2Fsmb2file.c;h=b2aff0c6f22c528eb628a25247bad85b1d096a3c;hb=52f993b8e89487ec9ee15a7fb4979e0f09a45b27;hp=f9e766f464beec408b628146c4e0d4e04010e0f2;hpb=c189ccac5702322ed843fe17057035b7222a59b6;p=kvmfornfv.git

diff --git a/kernel/fs/cifs/smb2file.c b/kernel/fs/cifs/smb2file.c
index f9e766f46..b2aff0c6f 100644
--- 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;
 	}