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[2620:137:e000::3:8]) by mx.google.com with ESMTPS id i22-20020a25b216000000b00d9a49bac80dsi3184133ybj.53.2023.10.24.23.02.53 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 24 Oct 2023 23:03:05 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::3:8 as permitted sender) client-ip=2620:137:e000::3:8; Authentication-Results: mx.google.com; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::3:8 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=fail (p=NONE sp=NONE dis=NONE) header.from=appspotmail.com Received: from out1.vger.email (depot.vger.email [IPv6:2620:137:e000::3:0]) by fry.vger.email (Postfix) with ESMTP id C8469801BAA8; Tue, 24 Oct 2023 23:02:50 -0700 (PDT) X-Virus-Status: Clean X-Virus-Scanned: clamav-milter 0.103.10 at fry.vger.email Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231441AbjJYGCf (ORCPT + 99 others); Wed, 25 Oct 2023 02:02:35 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:60994 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229583AbjJYGCe (ORCPT ); Wed, 25 Oct 2023 02:02:34 -0400 Received: from mail-oa1-f72.google.com (mail-oa1-f72.google.com [209.85.160.72]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 62B7AAC for ; Tue, 24 Oct 2023 23:02:32 -0700 (PDT) Received: by mail-oa1-f72.google.com with SMTP id 586e51a60fabf-1e98a9dd333so6534998fac.2 for ; Tue, 24 Oct 2023 23:02:32 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1698213751; x=1698818551; h=to:from:subject:message-id:in-reply-to:date:mime-version :x-gm-message-state:from:to:cc:subject:date:message-id:reply-to; bh=Wii8E7zHSEDik3+/ZAl9Uy7hVmIz0evyew93pf3levg=; b=JdS4SgCG6m/yo21E0aB+lghcSFjhr1nk6Gq6KVLoygzNfmOR+9oH/bjpW1mD6DutVF m+eZ9HNMR7N++KsXNDkcIVINNQ8N5xE+oN6N/Z9qAA7o4X74pkWUZucKG5afFZH32bG4 8+gJzZlPrt6172sZsEfrWxoDZxVMtlaqBZXlFr5p8/4nZu6gqdPqf+x7ECmFyKlxjRZe /SwJDi6yszyeMJ+Uw/MsO3ottNPrtH54XgBOkbjzJZc7nenj3W2bcEPXIQtNQtbXquA/ gq+xAJ4q+On3/Ul0Qfr3pFG7Eow6eh/D0gLgYDx5z2ejR1B+NT2wp+d2WWg1kc5FDkSa i/Nw== X-Gm-Message-State: AOJu0YxU45n6+rLmgklLFKpddZvoitAzf9jHV3Ve/Yxu0wJKvh86tvcm FatF500ICQA5ZlQxt3hB3RaFMlx/J9lWlzpAOqYadjCVTMWy MIME-Version: 1.0 X-Received: by 2002:a05:6870:472c:b0:1e5:7978:9ce4 with SMTP id b44-20020a056870472c00b001e579789ce4mr6743294oaq.11.1698213751574; Tue, 24 Oct 2023 23:02:31 -0700 (PDT) Date: Tue, 24 Oct 2023 23:02:31 -0700 In-Reply-To: <000000000000e8364c05ceefa4cf@google.com> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <0000000000006a55890608843368@google.com> Subject: Re: [syzbot] [can?] possible deadlock in j1939_session_activate From: syzbot To: davem@davemloft.net, edumazet@google.com, hdanton@sina.com, kernel@pengutronix.de, kuba@kernel.org, linux-can@vger.kernel.org, linux-kernel@vger.kernel.org, linux@rempel-privat.de, mkl@pengutronix.de, netdev@vger.kernel.org, pabeni@redhat.com, robin@protonic.nl, socketcan@hartkopp.net, syzkaller-bugs@googlegroups.com, wg@grandegger.com Content-Type: text/plain; charset="UTF-8" X-Spam-Status: No, score=2.1 required=5.0 tests=FROM_LOCAL_HEX, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SORTED_RECIPS, SPF_HELO_NONE,SPF_PASS autolearn=no autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on fry.vger.email Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org X-Greylist: Sender passed SPF test, not delayed by milter-greylist-4.6.4 (fry.vger.email [0.0.0.0]); Tue, 24 Oct 2023 23:02:51 -0700 (PDT) X-Spam-Level: ** syzbot has bisected this issue to: commit 259bdba27e32368b4404f69d613b1c1014c07cbf Author: Oliver Hartkopp Date: Wed Mar 9 12:04:16 2022 +0000 vxcan: enable local echo for sent CAN frames bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=14a2e55d680000 start commit: 84186fcb834e Merge tag 'urgent/nolibc.2023.10.16a' of git:.. git tree: upstream final oops: https://syzkaller.appspot.com/x/report.txt?x=16a2e55d680000 console output: https://syzkaller.appspot.com/x/log.txt?x=12a2e55d680000 kernel config: https://syzkaller.appspot.com/x/.config?x=7d1f30869bb78ec6 dashboard link: https://syzkaller.appspot.com/bug?extid=f32cbede7fd867ce0d56 syz repro: https://syzkaller.appspot.com/x/repro.syz?x=15c6300d680000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=17e6935d680000 Reported-by: syzbot+f32cbede7fd867ce0d56@syzkaller.appspotmail.com Fixes: 259bdba27e32 ("vxcan: enable local echo for sent CAN frames") For information about bisection process see: https://goo.gl/tpsmEJ#bisection