From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-il1-f199.google.com (mail-il1-f199.google.com [209.85.166.199]) (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 283292FB0A0 for ; Fri, 14 Nov 2025 10:43:06 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.166.199 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1763116989; cv=none; b=fuuUj8CTdI1mPW+Y0iRchPwo4VCri+QKBewc2//SqWefrR45AsfUogPOpQKNtW6WTkUp+91CAgAPn6FAScN64T72a4FSdyk4mHhd4vi41SghPMN2qpM7cyPFRzzXVQaU1CCSeUrsfYHSWvc8Oy9MblACucE1wGg/2JTNSjD9NAI= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1763116989; c=relaxed/simple; bh=plrZ2rGdP4lVx7WpoQYHxYeC+SoQnFD6kgGd8MEZY94=; h=MIME-Version:Date:In-Reply-To:Message-ID:Subject:From:To: Content-Type; b=t72T7qJw1IrCADyBZCVKBd6OdDpF5ocWt3l6cyb2waQNezJCsTVcD/TMLpbDoMkyHx4UjM1pQRQUNboRWTAIVN7cCA143TZAF/rq15xQvoQR19HF5clYXYR1T7123oCeHeJLHN2haGVyyj9kPPRMNC6vpe8Kjq0Q0Y9Mv5b6xEk= 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=209.85.166.199 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-f199.google.com with SMTP id e9e14a558f8ab-43321627eabso61792825ab.3 for ; Fri, 14 Nov 2025 02:43:06 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1763116986; x=1763721786; 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=R8+6RMvDeSAXr5Ef0lGUYAR+GMwegH2joIFguHjezuk=; b=xDpKdrHki8XstLRYvxFG9XK2aRlFpRiGbheKySQrJ9YgYE5CBhb9N/3Nbm8NQ/p8Kd 6mYykR50NADW3u3GwoepJhEhudC5VJL82NHWRjcjdD3Eh5Zq9T3zyfx6fZ/HZ9uVmPJb dd7davCWdJoa9nL8/GXJRFO8q+YK5jvX+bmTswXUmKmUlomizfcictZImIoUmy09ZfK4 NQdOkCzsm0ebcLCaJAhXMb1FP6jwBf6CAp3fKVyuwVvwM9+1tc09LlIVTlRgL+pIV+Oe o5vkLVFa1d5NR08aXk3PBsOAPoPheVNm81+PVumApdZSsLjEhVMAZj9HKnPc85+8z7S1 IQzw== X-Gm-Message-State: AOJu0YxdL24kWjunhH1hM1xwADMRaOqYIFziBB1UIvu0D8jvUuynbamW X1THnL1+s12Pdc97U+VeL2EXw9SNTC+NucX9CCmQwgFAWWiM0MBUCsvs7X8A79M3uuuEa/LXvvZ p9A+Pa9smjmzXz5Ego8GhoQMUPWCwLFnxQbPvyM28+HAMbaq4gpWlrzA5kKo= X-Google-Smtp-Source: AGHT+IFq/+mjQ8ZdkNYIJbLK/Kmjk0977Pazbd6mlF3S5s6fpCMDIea2MoCDmE03Tv14VNP0DFM8NqI4tLVAom/BgO7nQpCrhlZF Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Received: by 2002:a05:6e02:370e:b0:433:7ad4:7394 with SMTP id e9e14a558f8ab-4348c8fe4cdmr37445835ab.20.1763116986319; Fri, 14 Nov 2025 02:43:06 -0800 (PST) Date: Fri, 14 Nov 2025 02:43:06 -0800 In-Reply-To: <69113ffc.a70a0220.22f260.00cd.GAE@google.com> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <691707ba.a70a0220.3124cb.004c.GAE@google.com> Subject: Forwarded: Re: [syzbot] [mptcp?] possible deadlock in mptcp_subflow_shutdown (2) From: syzbot To: linux-kernel@vger.kernel.org, syzkaller-bugs@googlegroups.com Content-Type: text/plain; charset="UTF-8" For archival purposes, forwarding an incoming command email to linux-kernel@vger.kernel.org, syzkaller-bugs@googlegroups.com. *** Subject: Re: [syzbot] [mptcp?] possible deadlock in mptcp_subflow_shutdown (2) Author: matttbe@kernel.org On 14/11/2025 11:27, syzbot wrote: >> On 10/11/2025 09:41, Paolo Abeni wrote: (...) >> As noted by Paolo offline, it looks like this issue is due to nbd >> introducing a lockdep dependency between reclaim and af_socket, and this >> is similar to a previous report: >> >> #syz dup: [syzbot] [mptcp?] possible deadlock in > > can't find the dup bug Line wrapping... What about this? #syz dup: [syzbot] [mptcp?] possible deadlock in mptcp_subflow_create_socket (2) Cheers, Matt -- Sponsored by the NGI0 Core fund.