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 A623BC433F5 for ; Wed, 23 Mar 2022 18:47:16 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S237308AbiCWSso (ORCPT ); Wed, 23 Mar 2022 14:48:44 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:43032 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232824AbiCWSso (ORCPT ); Wed, 23 Mar 2022 14:48:44 -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 43A4889334 for ; Wed, 23 Mar 2022 11:47:14 -0700 (PDT) Received: by mail-io1-f72.google.com with SMTP id w25-20020a6bd619000000b00640ddd0ad11so1660616ioa.2 for ; Wed, 23 Mar 2022 11:47:14 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:mime-version:date:in-reply-to:message-id:subject :from:to; bh=pYu8i4bCyQkvLkE2p2XwJd7jMwp1xPlmh43gdxxjfcs=; b=j+0F4AnWRsw1ExdB4rydrjZz4YbowK20K+nSilt3wp0Rsl+0URM1mm0lILuCB4yGJu ZXwx1RfI98K7EcS+pib2YrtV7DWH76IEFjcHAQn5K2zwgtwLdyJr9Gn18YRixaPp/w0y VaAE71L2Cnq0ZCZ/oMG+v/cmFXu8YTr0ry2qpc6kiTw2b74sC4XZdMkH9JFVlfyKx30b sc/KcdwPG5E+k//g+zUIaNSNOckgH1/dYPXsPa0mzjN1Zbi4dIiXnUPH9LKGM+mJc7kH GDUwRe4fyEBBeByN5qpiNRpCEuGERvrMzXCmXZAT5U0IZLv/38cPMmaMYM+xq2oMJ2M+ CzqQ== X-Gm-Message-State: AOAM533dPuXsAmXTbi9KlFnxBNKIx7UMwa92VZl16T01JGPFhOXJVQLN JjdnzfMsWeO1Tss4ovAs9FZu0+FLgJG+7o79clpYjdRfbyok X-Google-Smtp-Source: ABdhPJyBbjyelOm6XZrSiqfFQ4vxrm4HvKy9Vh/Bx4jgt2Ms1B6Km+omLeQZEYQAxGGY4jCyHzAymP+ofR1jf/WmN1zVDe0wFM6d MIME-Version: 1.0 X-Received: by 2002:a05:6638:1655:b0:319:a174:6ba0 with SMTP id a21-20020a056638165500b00319a1746ba0mr722356jat.195.1648061233677; Wed, 23 Mar 2022 11:47:13 -0700 (PDT) Date: Wed, 23 Mar 2022 11:47:13 -0700 In-Reply-To: <000000000000a0506305dae664f2@google.com> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <00000000000066cd8205dae72838@google.com> Subject: Re: [syzbot] general protection fault in io_kill_timeouts From: syzbot To: asml.silence@gmail.com, axboe@kernel.dk, io-uring@vger.kernel.org, linux-kernel@vger.kernel.org, syzkaller-bugs@googlegroups.com Content-Type: text/plain; charset="UTF-8" Precedence: bulk List-ID: X-Mailing-List: io-uring@vger.kernel.org syzbot has bisected this issue to: commit c9be622494c012d56c71e00cb90be841820c3e34 Author: Pavel Begunkov Date: Mon Mar 21 22:02:20 2022 +0000 io_uring: remove extra ifs around io_commit_cqring bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=15a04739700000 start commit: b61581ae229d Add linux-next specific files for 20220323 git tree: linux-next final oops: https://syzkaller.appspot.com/x/report.txt?x=17a04739700000 console output: https://syzkaller.appspot.com/x/log.txt?x=13a04739700000 kernel config: https://syzkaller.appspot.com/x/.config?x=def28433baf109ed dashboard link: https://syzkaller.appspot.com/bug?extid=f252f28df734e8521387 syz repro: https://syzkaller.appspot.com/x/repro.syz?x=117d3a43700000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=15538925700000 Reported-by: syzbot+f252f28df734e8521387@syzkaller.appspotmail.com Fixes: c9be622494c0 ("io_uring: remove extra ifs around io_commit_cqring") For information about bisection process see: https://goo.gl/tpsmEJ#bisection