Received: by 2002:a25:6193:0:0:0:0:0 with SMTP id v141csp2734957ybb; Sun, 22 Mar 2020 06:31:04 -0700 (PDT) X-Google-Smtp-Source: ADFU+vusrrouGB8OwR9+d959+UyjdaOXjZCW8K5MCLPpzIHiSkOqRBQsnDoEzZ+fkiMr9ioZropp X-Received: by 2002:aca:534d:: with SMTP id h74mr13170245oib.173.1584883864675; Sun, 22 Mar 2020 06:31:04 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1584883864; cv=none; d=google.com; s=arc-20160816; b=TK/WTX5XPAQbHQIdpIvej1RllFT+oj2PoRWjd2xOhv++Cf6mIBdgWGZrLJ01Esu4CW RdXMgxJA25KrvsCAkccDH029M0rmK22FcYVQxxxyKFbLuM3fuc+E9sYVa6M+DLPfKW/t e51XY6XwbLJHwx/TcaqTuQNx9SPzipuUF/s+THUehQSDGioyApmfiiGqcbrG9yVP/IWr MP3x5wtm0IA2p/8MXrf3JGKxwB/TYjqjZ5+tcwxfTCSEaQokBivNtGIj1PqiYEM7QTb0 4t95OxF6GtAkhi8sKGfBRUCBQBvDCwUfed9ZCKrLy0S8JYyF+l96fjrjMienBwzEjK6r Gntw== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:sender:to:from:subject:message-id:in-reply-to :date:mime-version; bh=jmLK9Nx0sV4n9spz6FizKEO/UiXLat+guCFQpWcvF0A=; b=vjN+Sl5KSo1thzKkbaHLvcqPDuPGb8YnjQ3i/dDQ/XdsOkzfz6ig0wk50siBjJii6E sFplvnHCZftHq6BFO5f7fURemF6FtAxVhRSEDK2Asg6rGP2TtgqauSTJPygduqzkw4Pt PBO2uy5wn1OV/ZWfCoj6cCdiDvKGhpE20NC518uzm0xPtB3GmsXyu5s35U9fPvy0b7Xr 7cuJQswIzU/2k7SLRNTKMh1eLtO1UYEzHfui5vTD4Qgxs05FuDI8D0TlQ4lbvcfX9wWB PfdCycDk4igC7vqLmzxM3SG8bYIKLDfj5CTUtK4vGxmQ4V0Cixp2H17UVs6wlUwYP6ps x8Dw== ARC-Authentication-Results: i=1; mx.google.com; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=fail (p=NONE sp=NONE dis=NONE) header.from=appspotmail.com Return-Path: Received: from vger.kernel.org (vger.kernel.org. [209.132.180.67]) by mx.google.com with ESMTP id a23si2795638oid.145.2020.03.22.06.30.51; Sun, 22 Mar 2020 06:31:04 -0700 (PDT) Received-SPF: pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67; Authentication-Results: mx.google.com; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=fail (p=NONE sp=NONE dis=NONE) header.from=appspotmail.com Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726664AbgCVN3E (ORCPT + 99 others); Sun, 22 Mar 2020 09:29:04 -0400 Received: from mail-il1-f197.google.com ([209.85.166.197]:50590 "EHLO mail-il1-f197.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725972AbgCVN3D (ORCPT ); Sun, 22 Mar 2020 09:29:03 -0400 Received: by mail-il1-f197.google.com with SMTP id z12so9873965ilh.17 for ; Sun, 22 Mar 2020 06:29:03 -0700 (PDT) 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=jmLK9Nx0sV4n9spz6FizKEO/UiXLat+guCFQpWcvF0A=; b=nIHLanqxfFtC1PS3iPFVX/B1DK4Ran97mBco2Ai+HQ7846UYyQmEx4eR3I0JNRoj/3 YTB5W7qC4vCDAkbADNJ7LoT5ICgjsjyTfof+HK6G7V5HDUmtuhgezy9iSnmaM6TSHkU6 bV5+YfO4OXUk31bAVHjuf4Qvh463M14ldMLNtIdJGuKt5o6wuU3GGvHWbf103aIvFRpH QxbgBYwtYcii5HvxknVWU4y85S0bA6a2YXWB9J719P6tekrA7YdSUbuyRZyBnKIogIhI fhvWJD0NlTad3pBNXfqM4EiMJbwpkKhUvHmyjcpwmz1fKYWkhDTzZumswieP98ERUmkp 1vqQ== X-Gm-Message-State: ANhLgQ3i3SyyW7e/gxc1m0HOEzCMcZpL5QpAgUH0KBOpXHy4hkIW2BKy 4shyasJsxE9wupZ48p6X489ERPNEDFIuAAhGbyKqN4f6QzEk MIME-Version: 1.0 X-Received: by 2002:a05:6638:398:: with SMTP id y24mr5155770jap.125.1584883742893; Sun, 22 Mar 2020 06:29:02 -0700 (PDT) Date: Sun, 22 Mar 2020 06:29:02 -0700 In-Reply-To: <000000000000277a0405a16bd5c9@google.com> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <0000000000008172fe05a17180aa@google.com> Subject: Re: BUG: unable to handle kernel NULL pointer dereference in handle_external_interrupt_irqoff From: syzbot To: bp@alien8.de, clang-built-linux@googlegroups.com, davem@davemloft.net, dhowells@redhat.com, dvyukov@google.com, hpa@zytor.com, jmattson@google.com, joro@8bytes.org, kuba@kernel.org, kvm@vger.kernel.org, linux-afs@lists.infradead.org, linux-kernel@vger.kernel.org, mingo@redhat.com, netdev@vger.kernel.org, pbonzini@redhat.com, sean.j.christopherson@intel.com, syzkaller-bugs@googlegroups.com, tglx@linutronix.de, vkuznets@redhat.com, wanpengli@tencent.com, x86@kernel.org 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 f71dbf2fb28489a79bde0dca1c8adfb9cdb20a6b Author: David Howells Date: Thu Jan 30 21:50:36 2020 +0000 rxrpc: Fix insufficient receive notification generation bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=1483bb19e00000 start commit: b74b991f Merge tag 'block-5.6-20200320' of git://git.kerne.. git tree: upstream final crash: https://syzkaller.appspot.com/x/report.txt?x=1683bb19e00000 console output: https://syzkaller.appspot.com/x/log.txt?x=1283bb19e00000 kernel config: https://syzkaller.appspot.com/x/.config?x=6dfa02302d6db985 dashboard link: https://syzkaller.appspot.com/bug?extid=3f29ca2efb056a761e38 syz repro: https://syzkaller.appspot.com/x/repro.syz?x=1199c0c5e00000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=15097373e00000 Reported-by: syzbot+3f29ca2efb056a761e38@syzkaller.appspotmail.com Fixes: f71dbf2fb284 ("rxrpc: Fix insufficient receive notification generation") For information about bisection process see: https://goo.gl/tpsmEJ#bisection