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=-4.2 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS, USER_AGENT_SANE_2 autolearn=no 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 A2E69C4743F for ; Mon, 7 Jun 2021 17:46:48 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 8C03D610A1 for ; Mon, 7 Jun 2021 17:46:48 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230409AbhFGRsi (ORCPT ); Mon, 7 Jun 2021 13:48:38 -0400 Received: from mail-lj1-f181.google.com ([209.85.208.181]:46795 "EHLO mail-lj1-f181.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230197AbhFGRsi (ORCPT ); Mon, 7 Jun 2021 13:48:38 -0400 Received: by mail-lj1-f181.google.com with SMTP id e11so23321794ljn.13; Mon, 07 Jun 2021 10:46:46 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=date:from:to:cc:subject:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=xcejzj+YKCRY4WWuFJkzpsXTL8zoFh/y/Gxu0KunwGY=; b=BD0Sy4xO4H2zwT5TYjrhUUPywmTKCGM5YrFg1ccipSS3OfqaBZ3gl3YhsoIBPviEsM VmPYmaBP25cx0UsWT/ApQw5EAX4XUaysHUNK9zXOns95YPyaU8clEZTzDDy/LIrQXJj4 StGE4Z0Wprts1sY2GOk9KPRf+CaYSxapaZnWjrQZl8Pd8fAnQjjSm+Ap/V9VOsZD9R4E 7TuS1gVfa79cOLW9VM0yncWKGTf8g0Y8cO4Waj9ac9wsSRYSiRECYryjI8jnxyyUqT/t ti/kZlHRyM6+Kh9LHooRnn2OGj+EutQE4UxK5R/BayAh2048X/1PV3EmdAbnQkxZBTOR FtPw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:date:from:to:cc:subject:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=xcejzj+YKCRY4WWuFJkzpsXTL8zoFh/y/Gxu0KunwGY=; b=cmf1sgb3HZ2N1XpBmKgb+N6W8pAQ11nY47ccnotiQ7wP4eiaEFjs+GWs3PO1dyqxnq iqGKv3jo0IzfCEx4O+sQSBTQI2i6AGEOjLMBNhG3M06qGFk7dMJeNZBboa3B3P2L7Eab sx5sYTaW1c7hhIQTQoZAECnz4bRoJFQaHsL2aYptcNVc8Dz6k5jJfOHmdPD41bV1fxgX DGFkCq3A/THvVMRyKsUYOTEc22pcANsz/1nwOt3DmyB+d9l+N3sF4ru5jrj4eUbhNuz1 rvvZPQJJamVou9I26P4R1znb3eXuqcuDS+PohJZ4EbohSwDRxraLv4LJu2zIap+l5u5T q4eQ== X-Gm-Message-State: AOAM530oU7s9RPYa3AiqLVDkokgd/FJcIgNB044cl9jex8CO7Oc3QzMu XDjyG85AhCOS66W8N/XnbQU= X-Google-Smtp-Source: ABdhPJx8tZlIvp5fV59VWUsQzJhqZdEODeudvhf5bmmqzPkbMapfJnHsD4MnIvEL71LD+pDbiZx53w== X-Received: by 2002:a2e:91c8:: with SMTP id u8mr15030387ljg.309.1623087945375; Mon, 07 Jun 2021 10:45:45 -0700 (PDT) Received: from localhost.localdomain ([94.103.224.40]) by smtp.gmail.com with ESMTPSA id q16sm1574059lfu.103.2021.06.07.10.45.44 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 07 Jun 2021 10:45:45 -0700 (PDT) Date: Mon, 7 Jun 2021 20:45:42 +0300 From: Pavel Skripkin To: syzbot Cc: andrii@kernel.org, ast@kernel.org, bpf@vger.kernel.org, coreteam@netfilter.org, daniel@iogearbox.net, davem@davemloft.net, dsahern@kernel.org, fw@strlen.de, john.fastabend@gmail.com, jonathan.lemon@gmail.com, kadlec@netfilter.org, kafai@fb.com, kpsingh@kernel.org, kuba@kernel.org, linux-kernel@vger.kernel.org, matthieu.baerts@tessares.net, netdev@vger.kernel.org, netfilter-devel@vger.kernel.org, pablo@netfilter.org, songliubraving@fb.com, syzkaller-bugs@googlegroups.com, unixbhaskar@gmail.com, yhs@fb.com, yoshfuji@linux-ipv6.org, zhengyongjun3@huawei.com Subject: Re: [syzbot] general protection fault in kcm_sendmsg Message-ID: <20210607204542.4ad0b33e@gmail.com> In-Reply-To: <000000000000b3f96105c42ef146@google.com> References: <000000000000b3f96105c42ef146@google.com> X-Mailer: Claws Mail 3.17.8 (GTK+ 2.24.33; x86_64-suse-linux-gnu) MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Precedence: bulk List-ID: X-Mailing-List: netfilter-devel@vger.kernel.org On Mon, 07 Jun 2021 08:46:26 -0700 syzbot wrote: > Hello, > > syzbot found the following issue on: > > HEAD commit: 1a802423 virtio-net: fix for skb_over_panic inside > big mode git tree: bpf > console output: > https://syzkaller.appspot.com/x/log.txt?x=159b08afd00000 kernel > config: https://syzkaller.appspot.com/x/.config?x=770708ea7cfd4916 > dashboard link: > https://syzkaller.appspot.com/bug?extid=65badd5e74ec62cb67dc syz > repro: > https://syzkaller.appspot.com/x/repro.syz?x=104624afd00000 C > reproducer: https://syzkaller.appspot.com/x/repro.c?x=16e36197d00000 > > The issue was bisected to: > > commit f9006acc8dfe59e25aa75729728ac57a8d84fc32 > Author: Florian Westphal > Date: Wed Apr 21 07:51:08 2021 +0000 > > netfilter: arp_tables: pass table pointer via nf_hook_ops > It's c47cc304990a ("net: kcm: fix memory leak in kcm_sendmsg") where the bug was introduced by me :( I've already sent a revert With regards, Pavel Skripkin