From patchwork Sat May 6 00:12:22 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Peilin Ye X-Patchwork-Id: 13233190 X-Patchwork-Delegate: kuba@kernel.org Received: from lindbergh.monkeyblade.net (lindbergh.monkeyblade.net [23.128.96.19]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 8A152180 for ; Sat, 6 May 2023 00:12:32 +0000 (UTC) Received: from mail-yw1-x112b.google.com (mail-yw1-x112b.google.com [IPv6:2607:f8b0:4864:20::112b]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 420A6659B; Fri, 5 May 2023 17:12:31 -0700 (PDT) Received: by mail-yw1-x112b.google.com with SMTP id 00721157ae682-55a829411b5so22455897b3.1; Fri, 05 May 2023 17:12:31 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20221208; t=1683331950; x=1685923950; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=i/2a2fmRaVPEPp2SSETeOf9kawD9M9PLZwiVrKPPSQY=; b=CxrOtlBiwg4s9rfgq1NtTTDlmpby0f6ol7PjTQ3rv2KCdADYKCJX6/woREeP/oxuMM idy8F9tgM6fXoB45VbLt/lKYUq0ofl+ecMnWMFkNOpRcNwTRdSUYzbNiUTmOmy6SUmVW 3ss6EgBTlQNU0TUNYInGrGEvkXpyN792OyEUvYvenPLwFy0vT7yMiGjCDR6Ojbp1OPKE xpmz7911Saafm1DBQK9VI48gViPqLu5upXBVph5/GBNVuTlyx+egZV3Viog8/40UCNj/ V9Qs8/8k6yo27BfQxYgghd5B72QBfMzzlgwk6lOm+X9AzOQmiiKq3bZk/7XcT7kHhYnA 1mbw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20221208; t=1683331950; x=1685923950; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=i/2a2fmRaVPEPp2SSETeOf9kawD9M9PLZwiVrKPPSQY=; b=aN9eYHFmAXBKFnEg1OJPOPV6GCCRFXN+bLwo/IantjHyxTf+6xZaYxhSzFy5fO88EJ xatI3wUe4ZXx/GsUdxk4+7p1H3TZPiEg3rnwnbvyg5H4eT5u2C42LrSJk9dp0+N0mVpR MPJdfMVjxhcuax92w+2kym2QoNbxCDkbN0no2qzOIivR2KZNWqz+GKeP0xDgWLT84JPH u3hfXRYkKaJd+T/BEJQ6CVcvqb/uwjIg7yeGvvk8bPfv3CQuVvihTmHzKD/jiPEaT4/K hsjv7daSRdq0vS9rUmoP0fmB5MbWCiLbkPVTCD8ORj3klkYkXMgNU2SUQlXS891h1vqZ l0Dg== X-Gm-Message-State: AC+VfDxHmdMqc4A2ZCAIe+whuNcDuEW1KSKHh2d471ae9+8qxFU+UR/c mGxijdFcSMLp+Qn9lcVbuw== X-Google-Smtp-Source: ACHHUZ7B/nfs5WeLCZlzBFD6U4wWOR1+wLRnmcuDVSrg/93+iZcpuBJteChPblg7H7UO+nmKt7JzOA== X-Received: by 2002:a81:7345:0:b0:556:ea38:eb07 with SMTP id o66-20020a817345000000b00556ea38eb07mr3517093ywc.50.1683331950369; Fri, 05 May 2023 17:12:30 -0700 (PDT) Received: from C02FL77VMD6R.attlocal.net ([2600:1700:d860:12b0:5c3e:e69d:d939:4053]) by smtp.gmail.com with ESMTPSA id x185-20020a814ac2000000b00552a118d059sm793267ywa.117.2023.05.05.17.12.28 (version=TLS1_2 cipher=ECDHE-ECDSA-AES128-GCM-SHA256 bits=128/128); Fri, 05 May 2023 17:12:30 -0700 (PDT) From: Peilin Ye X-Google-Original-From: Peilin Ye To: "David S. Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni , Jamal Hadi Salim , Cong Wang , Jiri Pirko Cc: Peilin Ye , Daniel Borkmann , John Fastabend , Vlad Buslov , Pedro Tammela , Hillf Danton , netdev@vger.kernel.org, linux-kernel@vger.kernel.org, Cong Wang , Peilin Ye Subject: [PATCH net 1/6] net/sched: sch_ingress: Only create under TC_H_INGRESS Date: Fri, 5 May 2023 17:12:22 -0700 Message-Id: X-Mailer: git-send-email 2.30.1 (Apple Git-130) In-Reply-To: References: Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Spam-Status: No, score=-2.1 required=5.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,FREEMAIL_FROM, RCVD_IN_DNSWL_NONE,SPF_HELO_NONE,SPF_PASS,T_SCC_BODY_TEXT_LINE autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net X-Patchwork-Delegate: kuba@kernel.org ingress Qdiscs are only supposed to be created under TC_H_INGRESS. Similar to mq_init(), return -EOPNOTSUPP if 'parent' is not TC_H_INGRESS. Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2") Reported-by: syzbot+b53a9c0d1ea4ad62da8b@syzkaller.appspotmail.com Link: https://lore.kernel.org/netdev/0000000000006cf87705f79acf1a@google.com Signed-off-by: Peilin Ye Reviewed-by: Jamal Hadi Salim Acked-by: Jamal Hadi Salim --- net/sched/sch_ingress.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/net/sched/sch_ingress.c b/net/sched/sch_ingress.c index 84838128b9c5..3d71f7a3b4ad 100644 --- a/net/sched/sch_ingress.c +++ b/net/sched/sch_ingress.c @@ -80,6 +80,9 @@ static int ingress_init(struct Qdisc *sch, struct nlattr *opt, struct net_device *dev = qdisc_dev(sch); int err; + if (sch->parent != TC_H_INGRESS) + return -EOPNOTSUPP; + net_inc_ingress_queue(); mini_qdisc_pair_init(&q->miniqp, sch, &dev->miniq_ingress);