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 autolearn=unavailable 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 CE5B6FA372C for ; Fri, 8 Nov 2019 19:24:11 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id A5D4020656 for ; Fri, 8 Nov 2019 19:24:11 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2390126AbfKHTYK (ORCPT ); Fri, 8 Nov 2019 14:24:10 -0500 Received: from mail-il1-f198.google.com ([209.85.166.198]:43588 "EHLO mail-il1-f198.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1732051AbfKHSxB (ORCPT ); Fri, 8 Nov 2019 13:53:01 -0500 Received: by mail-il1-f198.google.com with SMTP id d11so7824112ild.10 for ; Fri, 08 Nov 2019 10:53:01 -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=Sl9ZT+3VnhHk9C9hUuWzxJC0ZnzOKIM3/flYfXRQH6Y=; b=ndKcHQXjIYsuRcJpTPlCUgeSFOC26Du1+s23EirNwPEi/IzwaiJZLSIhWD90769yMG wBfzK0VVASOoUJZah1vZwAzRYFqePMIFS3z0V13ed/ZYvQDtgziG7wuNdqovfHYTxdBZ 2ANwbMaj0JwpKZOL5sy322HoMAg004Y49sf2A8o50KyWpijInfwF3+fTRxiZU8Uub1ly ag58NSRvdg0y+xeGKLGNQ5ALmLY6Jj9WL6k4Y2a+cRDyIIeRkXntFpxW8WXHE1u2n6y9 coOlUqAMr0W1vK1VJNW/UC9gpgwAYCBdU8VsFbJnR5oWR1l9jyNH1zI0giAALbH02KRJ rqGQ== X-Gm-Message-State: APjAAAXwbMOYqB1lfSxQwoxO8k76SoDugeCcftTOphhClLCXaUAqD9UY xpAibYPSAvg2cCXLvZ0ypdszLvu5P+piSBwzgAyflHb9wVDX X-Google-Smtp-Source: APXvYqzQP9CYRfTlLHLsV6QBEQYBhPgI8bypq0U9hHsKzSMeEB/CVu4ed4IzOfkvt3dGwLP0hHzE142Gz/VsIc1tEwnjoCJ+zd1h MIME-Version: 1.0 X-Received: by 2002:a02:c4cf:: with SMTP id h15mr12593320jaj.112.1573239180629; Fri, 08 Nov 2019 10:53:00 -0800 (PST) Date: Fri, 08 Nov 2019 10:53:00 -0800 In-Reply-To: <0000000000005e2bf90570bbe2ab@google.com> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <000000000000821d620596da4ad0@google.com> Subject: Re: KASAN: use-after-free Read in ep_scan_ready_list From: syzbot To: asmadeus@codewreck.org, davem@davemloft.net, dominique.martinet@cea.fr, ericvh@gmail.com, jiangyiwen@huwei.com, linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, lucho@ionkov.net, netdev@vger.kernel.org, syzkaller-bugs@googlegroups.com, tomasbortoli@gmail.com, v9fs-developer@lists.sourceforge.net, 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 suspects this bug was fixed by commit: commit 430ac66eb4c5b5c4eb846b78ebf65747510b30f1 Author: Tomas Bortoli Date: Fri Jul 20 09:27:30 2018 +0000 net/9p/trans_fd.c: fix race-condition by flushing workqueue before the kfree() bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=167fa19ae00000 start commit: 1e09177a Merge tag 'mips_fixes_4.18_3' of git://git.kernel.. git tree: upstream kernel config: https://syzkaller.appspot.com/x/.config?x=25856fac4e580aa7 dashboard link: https://syzkaller.appspot.com/bug?extid=78b902c73c69102cb767 userspace arch: i386 syz repro: https://syzkaller.appspot.com/x/repro.syz?x=135660c8400000 If the result looks correct, please mark the bug fixed by replying with: #syz fix: net/9p/trans_fd.c: fix race-condition by flushing workqueue before the kfree() For information about bisection process see: https://goo.gl/tpsmEJ#bisection