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[2620:137:e000::1:20]) by mx.google.com with ESMTP id gw24-20020a170906f15800b0078d0f57b0e2si499037ejb.412.2022.10.24.12.25.40; Mon, 24 Oct 2022 12:26:03 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) client-ip=2620:137:e000::1:20; Authentication-Results: mx.google.com; dkim=pass header.i=@linuxfoundation.org header.s=korg header.b="x/hUwflN"; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=linuxfoundation.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232284AbiJXTVU (ORCPT + 99 others); Mon, 24 Oct 2022 15:21:20 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:33962 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231464AbiJXTUn (ORCPT ); Mon, 24 Oct 2022 15:20:43 -0400 Received: from sin.source.kernel.org (sin.source.kernel.org [IPv6:2604:1380:40e1:4800::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 6BE861D1E0B; Mon, 24 Oct 2022 10:56:33 -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 sin.source.kernel.org (Postfix) with ESMTPS id E9567CE147A; Mon, 24 Oct 2022 12:32:56 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 051E2C433D6; Mon, 24 Oct 2022 12:32:54 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1666614775; bh=XFRkCfAJHCaYT5OdRdGtKdxR0dcdcuxZLYpauLQ+i6Y=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=x/hUwflNtgDfCXyIjC0pihUr7oc1ZCT7AdObhJLXimqh6weVjp36gn4l3WRFK3K0b 4jM6OJ//Xc5cZwvYfV2/OFZ5O/IbXBUzaYhmdfIu6MTqOXJe2wbVptb3y8JslfIgq0 yUVrrPL1LRxV9rT1UtN2+8OP6v8qtc0iP1cP1CBE= 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 5.10 382/390] Revert "net/ieee802154: reject zero-sized raw_sendmsg()" Date: Mon, 24 Oct 2022 13:32:59 +0200 Message-Id: <20221024113039.246515196@linuxfoundation.org> X-Mailer: git-send-email 2.38.1 In-Reply-To: <20221024113022.510008560@linuxfoundation.org> References: <20221024113022.510008560@linuxfoundation.org> User-Agent: quilt/0.67 MIME-Version: 1.0 X-Spam-Status: No, score=-7.6 required=5.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,RCVD_IN_DNSWL_HI, SPF_HELO_NONE,SPF_PASS autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org X-getmail-retrieved-from-mailbox: =?utf-8?q?INBOX?= X-GMAIL-THRID: =?utf-8?q?1747598246809425209?= X-GMAIL-MSGID: =?utf-8?q?1747598246809425209?= 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 d4c162d63634..7edec210780a 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);