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 X-Spam-Level: X-Spam-Status: No, score=-5.4 required=3.0 tests=FROM_LOCAL_HEX, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,MENTIONS_GIT_HOSTING, SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 1F783C3524A for ; Tue, 4 Feb 2020 05:41:04 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id EAB3E2084E for ; Tue, 4 Feb 2020 05:41:03 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726554AbgBDFlD (ORCPT ); Tue, 4 Feb 2020 00:41:03 -0500 Received: from mail-il1-f200.google.com ([209.85.166.200]:49322 "EHLO mail-il1-f200.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725813AbgBDFlC (ORCPT ); Tue, 4 Feb 2020 00:41:02 -0500 Received: by mail-il1-f200.google.com with SMTP id p67so13953770ill.16 for ; Mon, 03 Feb 2020 21:41:02 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:date:in-reply-to:message-id:subject :from:to; bh=AM193aqkTInnm2sGLnq+KUrIMqtAH2ZiKkzgZdOGVwQ=; b=bGht1+kEBburJM6sU7c+uYxMmFTFcgNZqD6tLOUOzZbMVDOsC4TLyYwjUsq25lFkeR koy2QmVCD2BzgljN2S6yEYPUBqI6IZEMGAUOQZV+YyFzHIbRwCnGkpPh1oaSHp6cpNu2 Jf3t8kJZU+2ov6v+uOzjtBp09bmxe07dIjl2UkkVXQkpu/mf6W3sVRayREFxffoZwC/o Ad9MW5M19xwodD+eTwmBJblg70MTbsOlRbm4X1sjuCPQ2+EVQIbtMCNi+OboDE+70AHm cBh5FaAfPBFiqNhw8Aor+K5TqQ8TpOO4B6w3QSS1UYQT/2KxeRi3C7fbFGsY7hzEbkVH BnPw== X-Gm-Message-State: APjAAAU7I++bMYEyv4Vutd7Xg9buftbLmAgGBvbhEd1Vqq2/oej3zD7X 6AX4csI0nbIk2M/ESHni2vykdg0dVsj6FDN/jG4NzLgUBEca X-Google-Smtp-Source: APXvYqwvRwRXAdFpSeJjYEpr6KHxHErox1HBAN2yNAGNRqLGQTC61VxpwWiTrg0QVCAeJf2FuqLD24CFactmGu/hKq+lNVtjl291 MIME-Version: 1.0 X-Received: by 2002:a6b:24b:: with SMTP id 72mr20523024ioc.63.1580794861893; Mon, 03 Feb 2020 21:41:01 -0800 (PST) Date: Mon, 03 Feb 2020 21:41:01 -0800 In-Reply-To: <000000000000350337059db54167@google.com> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <00000000000034bde7059db97cf4@google.com> Subject: Re: inconsistent lock state in rxrpc_put_client_conn From: syzbot To: davem@davemloft.net, dhowells@redhat.com, kuba@kernel.org, linux-afs@lists.infradead.org, linux-kernel@vger.kernel.org, netdev@vger.kernel.org, syzkaller-bugs@googlegroups.com Content-Type: text/plain; charset="UTF-8" Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org syzbot has bisected this bug to: commit 5273a191dca65a675dc0bcf3909e59c6933e2831 Author: David Howells Date: Thu Jan 30 21:50:36 2020 +0000 rxrpc: Fix NULL pointer deref due to call->conn being cleared on disconnect bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=1182314ee00000 start commit: 3d80c653 Merge tag 'rxrpc-fixes-20200203' of git://git.ker.. git tree: net final crash: https://syzkaller.appspot.com/x/report.txt?x=1382314ee00000 console output: https://syzkaller.appspot.com/x/log.txt?x=1582314ee00000 kernel config: https://syzkaller.appspot.com/x/.config?x=95b275782b150c86 dashboard link: https://syzkaller.appspot.com/bug?extid=3f1fd6b8cbf8702d134e syz repro: https://syzkaller.appspot.com/x/repro.syz?x=14ac314ee00000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=13ec4c5ee00000 Reported-by: syzbot+3f1fd6b8cbf8702d134e@syzkaller.appspotmail.com Fixes: 5273a191dca6 ("rxrpc: Fix NULL pointer deref due to call->conn being cleared on disconnect") For information about bisection process see: https://goo.gl/tpsmEJ#bisection