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 Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 90833C6FD1F for ; Wed, 22 Mar 2023 09:29:46 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230220AbjCVJ3p (ORCPT ); Wed, 22 Mar 2023 05:29:45 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:52276 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230481AbjCVJ3h (ORCPT ); Wed, 22 Mar 2023 05:29:37 -0400 Received: from mail-io1-f72.google.com (mail-io1-f72.google.com [209.85.166.72]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id F19F659E69 for ; Wed, 22 Mar 2023 02:29:19 -0700 (PDT) Received: by mail-io1-f72.google.com with SMTP id s1-20020a6bd301000000b0073e7646594aso9314104iob.8 for ; Wed, 22 Mar 2023 02:29:19 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; t=1679477359; 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=VwR4H6MGsoLQxINvSfgEoqaiGeIJXbBfzWUEo9uno3E=; b=Hb7GE0HjNugyR013MKH2yiknVAph+rX54CBuSNe5xZuT/UkGyatT+cq9Pie4bYXMhr GDz/o6OB0SIj83J/ymIQXA+wkh445dc6hU2BM4jngsb743DGo595b/AJgbqXrzFZEL4z DA2jDVXJflJznr6BSOVxcWtQ6RTfvWXXAEKhgBEwq++g94glGXj386PCp2aW65/BbuKK NFCQe7ONMNKFgBzJc69lSuvLWf8biWmhxzqHPAnflH5kUv4xI+jojaXoHXKEIz64Lsl3 PtP0IM6mLFbNHoq+D5YYtXifQpx6T1rhcwGj9z1IkWkcKb2gXi6XlkZBeNxfrjUjI/dn 5+fQ== X-Gm-Message-State: AO0yUKX1msbyFHyNIMNAohG+PIJC3eflKWjOl/IU/vdAKD3I5WWjHFEy 067Y2MzlYXMaOUcy93DpvnX543S4LNr5lPWyj8/lgpqgJXsw X-Google-Smtp-Source: AK7set9wiXXV8HcfSnBA3WXXQuxKz+LajL6b0bCizutG2gEq/GuJ4PDA4gkD8fLcC7wmG0GimCb5oA7lyiAD8rOGbOyncXzfWO0+ MIME-Version: 1.0 X-Received: by 2002:a02:9567:0:b0:3c2:b9ba:72f9 with SMTP id y94-20020a029567000000b003c2b9ba72f9mr2581039jah.5.1679477359313; Wed, 22 Mar 2023 02:29:19 -0700 (PDT) Date: Wed, 22 Mar 2023 02:29:19 -0700 In-Reply-To: <0000000000006294c805e106db34@google.com> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <000000000000690cbc05f779cba8@google.com> Subject: Re: [syzbot] [bpf?] [trace?] possible deadlock in bpf_trace_printk From: syzbot To: andrii@kernel.org, ast@kernel.org, boqun.feng@gmail.com, bpf@vger.kernel.org, daniel@iogearbox.net, davem@davemloft.net, fgheet255t@gmail.com, haoluo@google.com, hawk@kernel.org, hdanton@sina.com, john.fastabend@gmail.com, jolsa@kernel.org, kafai@fb.com, kpsingh@kernel.org, kuba@kernel.org, linux-kernel@vger.kernel.org, linux-trace-kernel@vger.kernel.org, longman@redhat.com, martin.lau@linux.dev, mingo@redhat.com, netdev@vger.kernel.org, peterz@infradead.org, rostedt@goodmis.org, sdf@google.com, song@kernel.org, songliubraving@fb.com, syzkaller-bugs@googlegroups.com, will@kernel.org, yhs@fb.com Content-Type: text/plain; charset="UTF-8" Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org syzbot suspects this issue was fixed by commit: commit 05b24ff9b2cfabfcfd951daaa915a036ab53c9e1 Author: Jiri Olsa Date: Fri Sep 16 07:19:14 2022 +0000 bpf: Prevent bpf program recursion for raw tracepoint probes bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=10a653d6c80000 start commit: a335366bad13 Merge tag 'gpio-fixes-for-v6.0-rc6' of git://.. git tree: upstream kernel config: https://syzkaller.appspot.com/x/.config?x=9e66520f224211a2 dashboard link: https://syzkaller.appspot.com/bug?extid=c49e17557ddb5725583d syz repro: https://syzkaller.appspot.com/x/repro.syz?x=16e27480880000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=12737fbf080000 If the result looks correct, please mark the issue as fixed by replying with: #syz fix: bpf: Prevent bpf program recursion for raw tracepoint probes For information about bisection process see: https://goo.gl/tpsmEJ#bisection