From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-io1-f69.google.com (mail-io1-f69.google.com [209.85.166.69]) (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 D3BE72D6614 for ; Thu, 3 Jul 2025 09:22:40 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.166.69 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1751534562; cv=none; b=pCeCy5du3fui+Z2jdHU6KtpnBXBf4+ns5bEnSbqOndvnjryVwBY4/P5dGvWM22942Z2Kh4/kot2kYMSvBx4o5OKB0G1wibepSevIzchsvE9oMyYsQ23mNNUJhquRMC5uzGYLQ00yUanBNYeqMDdipODZpRVDOHniag0iWHEVDZs= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1751534562; c=relaxed/simple; bh=h0OYEhRgg6QSJuxBR6K/CBtNlaG4cBCtpSWy04aBlmc=; h=MIME-Version:Date:In-Reply-To:Message-ID:Subject:From:To: Content-Type; b=KHLaQ6imKlw1oYuz9GcOMSRjWONtIQKunX9c+4vwr5He9kbcgUwdftNfri2eFz6jZK4nWqf5rypbrm+AAHcHcvBHQTOuGJYWuCSEYhaAqxY2uWmkfD6F/++KRm866Ez1AsSHT2bb12tXKtZj83xSs5VKiWMrBZfN6/vc7Hnvmn8= 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=209.85.166.69 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-io1-f69.google.com with SMTP id ca18e2360f4ac-86cf9bad8e9so579364139f.2 for ; Thu, 03 Jul 2025 02:22:40 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1751534560; x=1752139360; 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=5tCAySEFqv3epv6j+Rlkm/8+5LnRbIWUydqjhwg4UTY=; b=IFPg3B3o6FiDPKRJ3PJfQ6m23ZQHyD2ssnCtn+IDQj6AkCIVj8chU41iNldjrues5K Rikmpf5lTCcYB5D+9osaZ3cyTzcJTznRQQlu50row1FZXp+GMy0pmxHGnnibs+V4JDe/ IL8FSbQGTYNjNCyLVCSB3y/1Bc+o6niQ8a5Lpch6nsZgCUt25BmFLL6OqpT780vJFDgO 0jzfxC7erG2iiU6BtKbTPIqiHGzPlFJkAnvEaI5QaxMOVJQJtX80HGkuT5Dysi8skNwS Jvx5HfELISv3xg5q6w3xF+1GhVaYp79u2j5epMgVgLOUWETBT5oEdBmMpcSlWVm52e1r ZN/w== X-Gm-Message-State: AOJu0YzA1iN9ItC8HK4PrcEQE0IVC794THVOcXWUlxmh3TExMR/nt5HE RdRXdmEecmnz0QKZjNON9alsopcOUeqUFH2fEYEkpeMli1lj9vAiv/Z7IJEJIV+e0yWy2BMWLBt Ysj+NN1rnlcbX23t7SEOshRZkSK7gHCE0JnNum3Fh7voFsAf36KmgfGi0dWM= X-Google-Smtp-Source: AGHT+IEeVvk3UPo5gaggsFanR8r8mY4VsatSTXd29CqUZbuTZWFlAcaUVi0B8/xNB8gMR4tUjIXLQZOSoZfFW+RKG+hJ65XoCYXw Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Received: by 2002:a05:6602:7190:b0:86c:fdb3:2798 with SMTP id ca18e2360f4ac-876c6a7fb36mr769096139f.11.1751534559896; Thu, 03 Jul 2025 02:22:39 -0700 (PDT) Date: Thu, 03 Jul 2025 02:22:39 -0700 In-Reply-To: <68656f4c.a70a0220.2b31f5.0000.GAE@google.com> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <68664bdf.a70a0220.5d25f.0863.GAE@google.com> Subject: Re: [syzbot] Re: [syzbot] [nfs?] [net?] possible deadlock in rpc_close_pipes From: syzbot To: linux-kernel@vger.kernel.org Content-Type: text/plain; charset="UTF-8" For archival purposes, forwarding an incoming command email to linux-kernel@vger.kernel.org. *** Subject: Re: [syzbot] [nfs?] [net?] possible deadlock in rpc_close_pipes Author: lizhi.xu@windriver.com #syz test diff --git a/net/sunrpc/rpc_pipe.c b/net/sunrpc/rpc_pipe.c index 0bd1df2ebb47..e30270e5883a 100644 --- a/net/sunrpc/rpc_pipe.c +++ b/net/sunrpc/rpc_pipe.c @@ -175,7 +175,7 @@ rpc_close_pipes(struct dentry *dentry) int need_release; LIST_HEAD(free_list); - inode_lock(inode); + inode_lock_nested(inode, I_MUTEX_CHILD); spin_lock(&pipe->lock); need_release = pipe->nreaders != 0 || pipe->nwriters != 0; pipe->nreaders = 0;