From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 25068ECAAA1 for ; Mon, 24 Oct 2022 16:39:12 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232519AbiJXQjJ (ORCPT ); Mon, 24 Oct 2022 12:39:09 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:38422 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S234306AbiJXQic (ORCPT ); Mon, 24 Oct 2022 12:38:32 -0400 Received: from ams.source.kernel.org (ams.source.kernel.org [IPv6:2604:1380:4601:e00::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 698FA18F0DA; Mon, 24 Oct 2022 08:26:09 -0700 (PDT) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ams.source.kernel.org (Postfix) with ESMTPS id 76D87B81633; Mon, 24 Oct 2022 12:15:38 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id CE549C4314C; Mon, 24 Oct 2022 12:15:36 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1666613737; bh=dUlv4IUjZufYUsjXRHX/QmwZKP4NWeHS6rGyTNwFWuU=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=QJwHvvHyz0Z/AtKCzbo2MkumGWOJJcQ+KnbWLG/9eEBYD2TxytQsAeGfpplE0PqBg c/x3p+Rdlsn6Xbqqbs8Qd/s9g9WtNk9+PEETy9B7UiJiSfYHbUpEz5Fo/0V4ZO3lOc p23GE9zpZbc7zlrW2bnIxdhmUjwwf9MsLOPqq4PA= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Alexander Aring , Stefan Schmidt , Sasha Levin Subject: [PATCH 5.4 249/255] Revert "net/ieee802154: reject zero-sized raw_sendmsg()" Date: Mon, 24 Oct 2022 13:32:39 +0200 Message-Id: <20221024113011.579988511@linuxfoundation.org> X-Mailer: git-send-email 2.38.1 In-Reply-To: <20221024113002.471093005@linuxfoundation.org> References: <20221024113002.471093005@linuxfoundation.org> User-Agent: quilt/0.67 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Alexander Aring [ Upstream commit 2eb2756f6c9e9621e022d78321ce40a62c4520b5 ] This reverts commit 3a4d061c699bd3eedc80dc97a4b2a2e1af83c6f5. There is a v2 which does return zero if zero length is given. Signed-off-by: Alexander Aring Link: https://lore.kernel.org/r/20221005014750.3685555-1-aahringo@redhat.com Signed-off-by: Stefan Schmidt Signed-off-by: Sasha Levin --- net/ieee802154/socket.c | 3 --- 1 file changed, 3 deletions(-) diff --git a/net/ieee802154/socket.c b/net/ieee802154/socket.c index 72637d5994d8..a92b11999e5f 100644 --- a/net/ieee802154/socket.c +++ b/net/ieee802154/socket.c @@ -252,9 +252,6 @@ static int raw_sendmsg(struct sock *sk, struct msghdr *msg, size_t size) return -EOPNOTSUPP; } - if (!size) - return -EINVAL; - lock_sock(sk); if (!sk->sk_bound_dev_if) dev = dev_getfirstbyhwtype(sock_net(sk), ARPHRD_IEEE802154); -- 2.35.1