Commit ecd9d6bf authored by Namjae Jeon's avatar Namjae Jeon Committed by Steve French
Browse files

ksmbd: check return value of xa_store() in krb5_authenticate 



xa_store() may fail so check its return value and return error code if
error occurred.

Signed-off-by: default avatarNamjae Jeon <linkinjeon@kernel.org>
Signed-off-by: default avatarSteve French <stfrench@microsoft.com>
parent 9b493ab6

fs/smb/server/smb2pdu.c

+7 −2
Original line number Diff line number Diff line
@@ -1594,7 +1594,7 @@ static int krb5_authenticate(struct ksmbd_work *work, 
	struct ksmbd_conn *conn = work->conn;

	struct ksmbd_session *sess = work->sess;

	char *in_blob, *out_blob;

	struct channel *chann = NULL;

	struct channel *chann = NULL, *old;

	u64 prev_sess_id;

	int in_len, out_len;

	int retval;
@@ -1660,7 +1660,12 @@ static int krb5_authenticate(struct ksmbd_work *work, 
				return -ENOMEM;



			chann->conn = conn;

			xa_store(&sess->ksmbd_chann_list, (long)conn, chann, KSMBD_DEFAULT_GFP);

			old = xa_store(&sess->ksmbd_chann_list, (long)conn,

					chann, KSMBD_DEFAULT_GFP);

			if (xa_is_err(old)) {

				kfree(chann);

				return xa_err(old);

			}

		}

	}