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 X-Spam-Level: X-Spam-Status: No, score=-10.0 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI, SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 7237AC4CEC7 for ; Fri, 13 Sep 2019 13:34:01 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 41036205ED for ; Fri, 13 Sep 2019 13:34:01 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1568381641; bh=xxcNvHAUzHqpe4b/uPFLBWmvx6l6ZoYVFfAIjThIUSk=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=HL9+iFMY9eNYT7GKs0OU6zBfPo89EFYR78nLUoPuc5xVCD63FS4/+J2Q+Flf+5iRp PMKiYMwHANhUgz4pDQiIZ5RfdSeYc7Ku04R4ceZK1J+bH15ptX5gVTjqeShIRRf5Hc YrGfKCdRLzk6//ZRWAWheS1zIEkxVmbcbWU981vA= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2388395AbfIMNJA (ORCPT ); Fri, 13 Sep 2019 09:09:00 -0400 Received: from mail.kernel.org ([198.145.29.99]:33484 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2388393AbfIMNI7 (ORCPT ); Fri, 13 Sep 2019 09:08:59 -0400 Received: from localhost (unknown [104.132.45.99]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id A7D6E20CC7; Fri, 13 Sep 2019 13:08:58 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1568380139; bh=xxcNvHAUzHqpe4b/uPFLBWmvx6l6ZoYVFfAIjThIUSk=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=LtoGSUkn9jr+SMUTRjFJg3tu2sBUCnjwzDdas20DtDWQyLvMEVIiKXCx0XVe+vY78 eDrOamobVi3jvNAIgTANsHOIT/CnLiZGQnUuRl/xI9zTOW8/P/LvC3vQ15iW5Nng0z rWQb3cVBrrWvfq/oXLse37dSKq8npwviAcs7WqXI= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Dave Jones , Daniel Borkmann , "David S. Miller" , Sasha Levin Subject: [PATCH 4.4 8/9] af_packet: tone down the Tx-ring unsupported spew. Date: Fri, 13 Sep 2019 14:06:58 +0100 Message-Id: <20190913130431.515555493@linuxfoundation.org> X-Mailer: git-send-email 2.23.0 In-Reply-To: <20190913130424.160808669@linuxfoundation.org> References: <20190913130424.160808669@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Sender: stable-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org [ Upstream commit 6ae81ced378820c4c6434b1dedba14a7122df310 ] Trinity and other fuzzers can hit this WARN on far too easily, resulting in a tainted kernel that hinders automated fuzzing. Replace it with a rate-limited printk. Signed-off-by: Dave Jones Acked-by: Daniel Borkmann Signed-off-by: David S. Miller Signed-off-by: Sasha Levin --- net/packet/af_packet.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/net/packet/af_packet.c b/net/packet/af_packet.c index 5d8988185c591..0dd9fc3f57e87 100644 --- a/net/packet/af_packet.c +++ b/net/packet/af_packet.c @@ -4176,7 +4176,7 @@ static int packet_set_ring(struct sock *sk, union tpacket_req_u *req_u, /* Opening a Tx-ring is NOT supported in TPACKET_V3 */ if (!closing && tx_ring && (po->tp_version > TPACKET_V2)) { - WARN(1, "Tx-ring is not supported.\n"); + net_warn_ratelimited("Tx-ring is not supported.\n"); goto out; } -- 2.20.1