From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-il1-f200.google.com (mail-il1-f200.google.com [209.85.166.200]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 8FCE01F4CAF for ; Sat, 22 Mar 2025 14:21:05 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.166.200 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1742653267; cv=none; b=WmyRvExj3KayQKWtJq8lSXQsb4XBWRHJCQulERoRJJbysNQIJl2xdcVuUTEgH8sI0CuYuSb+OCso8I0ex9id1udht5yXVzQ9UFc4AVEuqV0sZxGiT3eQUOSWLZWhlHY0p3h20mmC+eTsq0SbCrbkr22Rq11guFIl4QEiFpNJv4s= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1742653267; c=relaxed/simple; bh=GV5ScpaW94JpIvrpJFW1esYd0UofIMH6efGT6ajycpU=; h=MIME-Version:Date:In-Reply-To:Message-ID:Subject:From:To: Content-Type; b=QkZrvT206x/cDsFVi9bgoIiTViQurMQRnTpNa9gBfsMmMFGDgO1vMrjT2r1tIk0fl6PxKaRGy0JIGHWjxBOMpmv2kr/kll0VEXXH3Syecqb+fEelAp/mNAEqkMVj3ldoMeQEfOIKL5TGIGQFEHTNvTL2pmDVgCkcjQte7CNWjpk= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=fail (p=none dis=none) header.from=syzkaller.appspotmail.com; spf=pass smtp.mailfrom=M3KW2WVRGUFZ5GODRSRYTGD7.apphosting.bounces.google.com; arc=none smtp.client-ip=209.85.166.200 Authentication-Results: smtp.subspace.kernel.org; dmarc=fail (p=none dis=none) header.from=syzkaller.appspotmail.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=M3KW2WVRGUFZ5GODRSRYTGD7.apphosting.bounces.google.com Received: by mail-il1-f200.google.com with SMTP id e9e14a558f8ab-3d434c328dbso53502675ab.3 for ; Sat, 22 Mar 2025 07:21:05 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1742653264; x=1743258064; 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=JK5ZXI6vbQAIZxy13h5qPA6KYskAYkIUEuDZySyhb0A=; b=AO7ITsknUvWUYpjYA7FieXsHPGb/DOixt0Q3VKCr0AeuhelUBaY4DWSC5JBXzqZOAt r0KDcrhZoJV+HpfMOYVQOrx11P5fWqLxXUm9PxYDDK3rQkUOzWLBus5srJ+ruQYp5iNn JJqGtMUU0KRSnFRJrswtIrTxg+DRcfP56kRvUitUIkHAgjcdgHr9eHHxzvzGe63ALPL5 AB1jhdYXEJ6ENFvoMt+Iwo78YwH9/xZQPMVe5qF3NNBBDmZ5BoJgNeE0cH7eLbSQgvYm 3sx0ch4oB3+qI3nnyZpZUQuEL0XvQ6afXTt42zKupNvOeE7AiYj8iT/bVy1haUY+X+zB esEQ== X-Forwarded-Encrypted: i=1; AJvYcCWSERZGw04ccb8mVS3HfGHcftIpUK6EKF7VMWWihe/adOVqvABsJygEHJTboy1ByOQMMoQyBddCgw==@vger.kernel.org X-Gm-Message-State: AOJu0YySy/30luckkOpMl/h3cpsRVtRpYF8an/QA07f+TTyapTKdxCTn abQcEV/c9zSpw9NJYeJlLzPk5EsXZiaTlvTk3R8B0RwKJXEgZ3x/18YRgTAdywiCXEKVVE5jIK6 1qmEhOQudbsEz+9CmJIk/xAryGFLO+uiOxY3T6GqkJyWijpAx5WEeDkA= X-Google-Smtp-Source: AGHT+IGCFPzSPPNaIKguvkQ1WT+OSMolQs7AmmRdajAqaldrzDzcQ1lTxjFWUpRhGeR0zPfdvEhekvGPfOClbBndJbI8tYg3c2c8 Precedence: bulk X-Mailing-List: io-uring@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Received: by 2002:a05:6e02:1c21:b0:3d0:237e:c29c with SMTP id e9e14a558f8ab-3d59615d8bdmr91271625ab.12.1742653264601; Sat, 22 Mar 2025 07:21:04 -0700 (PDT) Date: Sat, 22 Mar 2025 07:21:04 -0700 In-Reply-To: <67de616f.050a0220.31a16b.002b.GAE@google.com> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <67dec750.050a0220.31a16b.003e.GAE@google.com> Subject: Re: [syzbot] [io-uring?] WARNING: refcount bug in io_send_zc_cleanup (2) 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" syzbot has bisected this issue to: commit cc34d8330e036b6bffa88db9ea537bae6b03948f Author: Jens Axboe Date: Thu Mar 20 18:25:12 2025 +0000 io_uring/net: don't clear REQ_F_NEED_CLEANUP unconditionally bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=15ef043f980000 start commit: d07de43e3f05 Merge tag 'io_uring-6.14-20250321' of git://g.. git tree: upstream final oops: https://syzkaller.appspot.com/x/report.txt?x=17ef043f980000 console output: https://syzkaller.appspot.com/x/log.txt?x=13ef043f980000 kernel config: https://syzkaller.appspot.com/x/.config?x=620facf12ff15d10 dashboard link: https://syzkaller.appspot.com/bug?extid=cf285a028ffba71b2ef5 syz repro: https://syzkaller.appspot.com/x/repro.syz?x=16be1c4c580000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=12223004580000 Reported-by: syzbot+cf285a028ffba71b2ef5@syzkaller.appspotmail.com Fixes: cc34d8330e03 ("io_uring/net: don't clear REQ_F_NEED_CLEANUP unconditionally") For information about bisection process see: https://goo.gl/tpsmEJ#bisection