diff --git a/fs/cifs/smb2pdu.c b/fs/cifs/smb2pdu.c
index e1162217ad1a641b98ba34288592f52dae2b1ee5..f8f89ff96c5d1a2af21ffc5c7c9247f18ea20aa3 100644
--- a/fs/cifs/smb2pdu.c
+++ b/fs/cifs/smb2pdu.c
@@ -2420,7 +2420,7 @@ create_sd_buf(umode_t mode, bool set_owner, unsigned int *len)
 	unsigned int acelen, acl_size, ace_count;
 	unsigned int owner_offset = 0;
 	unsigned int group_offset = 0;
-	struct smb3_acl acl;
+	struct smb3_acl acl = {};
 
 	*len = round_up(sizeof(struct crt_sd_ctxt) + (sizeof(struct cifs_ace) * 4), 8);
 
@@ -2493,6 +2493,7 @@ create_sd_buf(umode_t mode, bool set_owner, unsigned int *len)
 	acl.AclRevision = ACL_REVISION; /* See 2.4.4.1 of MS-DTYP */
 	acl.AclSize = cpu_to_le16(acl_size);
 	acl.AceCount = cpu_to_le16(ace_count);
+	/* acl.Sbz1 and Sbz2 MBZ so are not set here, but initialized above */
 	memcpy(aclptr, &acl, sizeof(struct smb3_acl));
 
 	buf->ccontext.DataLength = cpu_to_le32(ptr - (__u8 *)&buf->sd);