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[209.132.180.67]) by mx.google.com with ESMTP id q9si12615709edn.121.2019.12.02.07.25.41; Mon, 02 Dec 2019 07:26:06 -0800 (PST) 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 S1727484AbfLBPWB (ORCPT + 99 others); Mon, 2 Dec 2019 10:22:01 -0500 Received: from mail-io1-f72.google.com ([209.85.166.72]:36085 "EHLO mail-io1-f72.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727432AbfLBPWB (ORCPT ); Mon, 2 Dec 2019 10:22:01 -0500 Received: by mail-io1-f72.google.com with SMTP id 202so13868194iou.3 for ; Mon, 02 Dec 2019 07:22:01 -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=yoaw0PwFg2A6gDglB5LznPWl+Lud/RfolRLMztLbYOM=; b=P09xDfUuPakqoHJ6cgdZuQltMmsv1X459+cxUU9lhuHOGScVnXrsK4rTiSg7wmQalC tmnKYcwWG6LqgdegcZvFkdlgtzf52XcfXPZFEvk7cQXbJ2sgSQO3GeotLOqSbXeJkZKL SahOedAQW5VlKpwonLcL4ydK5og2nLeUVyHfP4ZOCTvU3MK6kXtJzVh1Xem5MtzvaeMJ qs+snHkkuvLocamLrX87FYqEGUldQEjUKEBaFGOEhu0KA5nbVSapdjqKX1ZLGwc8p1ld l6rPzXpNIUceqXIgWgTnm8vp2degiwuYSHlaROBqZaBlS3KzN8gFBp5BwoS9YOB21Wdq NUqA== X-Gm-Message-State: APjAAAUGxcCnMoFwij2NFGLyRPZXrBMIMfsSeiHfIPblsFtNgwGWZErq C3UNUMH3mX9hDXuAs/Z4jVjSuz7uIMyQEevBDXzOPKLRutJ3 MIME-Version: 1.0 X-Received: by 2002:a02:962c:: with SMTP id c41mr29142298jai.74.1575300120660; Mon, 02 Dec 2019 07:22:00 -0800 (PST) Date: Mon, 02 Dec 2019 07:22:00 -0800 In-Reply-To: <000000000000da160a0598b2c704@google.com> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <0000000000001b5b540598ba2498@google.com> Subject: Re: general protection fault in override_creds From: syzbot To: Anna.Schumaker@Netapp.com, Anna.Schumaker@netapp.com, axboe@kernel.dk, casey@schaufler-ca.com, dhowells@redhat.com, dvyukov@google.com, io-uring@vger.kernel.org, jannh@google.com, keescook@chromium.org, kstewart@linuxfoundation.org, linux-block@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, neilb@suse.com, syzkaller-bugs@googlegroups.com, tglx@linutronix.de, viro@zeniv.linux.org.uk Content-Type: text/plain; charset="UTF-8"; format=flowed; delsp=yes 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 181e448d8709e517c9c7b523fcd209f24eb38ca7 Author: Jens Axboe Date: Mon Nov 25 15:52:30 2019 +0000 io_uring: async workers should inherit the user creds bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=10424ceae00000 start commit: b94ae8ad Merge tag 'seccomp-v5.5-rc1' of git://git.kernel... git tree: upstream final crash: https://syzkaller.appspot.com/x/report.txt?x=12424ceae00000 console output: https://syzkaller.appspot.com/x/log.txt?x=14424ceae00000 kernel config: https://syzkaller.appspot.com/x/.config?x=ff560c3de405258c dashboard link: https://syzkaller.appspot.com/bug?extid=5320383e16029ba057ff syz repro: https://syzkaller.appspot.com/x/repro.syz?x=12dd682ae00000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=16290abce00000 Reported-by: syzbot+5320383e16029ba057ff@syzkaller.appspotmail.com Fixes: 181e448d8709 ("io_uring: async workers should inherit the user creds") For information about bisection process see: https://goo.gl/tpsmEJ#bisection