linux-kernel - Re: WARNING in alloc_page

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-Id: <20200321130716.c1da54e6e5b9897ae5dfde38@linux-foundation.org>
Date:   Sat, 21 Mar 2020 13:07:16 -0700
From:   Andrew Morton <akpm@...ux-foundation.org>
To:     syzbot <syzbot+0985c7ea18137bf0c4ca@...kaller.appspotmail.com>
Cc:     hannes@...xchg.org, linux-fsdevel@...r.kernel.org,
        linux-kernel@...r.kernel.org, schatzberg.dan@...il.com,
        sfr@...b.auug.org.au, syzkaller-bugs@...glegroups.com,
        viro@...iv.linux.org.uk
Subject: Re: WARNING in alloc_page_buffers

On Sat, 21 Mar 2020 13:00:18 -0700 syzbot <syzbot+0985c7ea18137bf0c4ca@...kaller.appspotmail.com> wrote:

> syzbot found the following crash on:
> 
> HEAD commit:    770fbb32 Add linux-next specific files for 20200228

That's nearly four weeks ago?

> git tree:       linux-next
> console output: https://syzkaller.appspot.com/x/log.txt?x=13507489e00000
> kernel config:  https://syzkaller.appspot.com/x/.config?x=576314276bce4ad5
> dashboard link: https://syzkaller.appspot.com/bug?extid=0985c7ea18137bf0c4ca
> compiler:       gcc (GCC) 9.0.0 20181231 (experimental)
> syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=15b970e5e00000
> C reproducer:   https://syzkaller.appspot.com/x/repro.c?x=178e99f9e00000
> 
> The bug was bisected to:
> 
> commit c9e1feb96bd90a4b51d440a015ba2f1c0562de59
> Author: Dan Schatzberg <schatzberg.dan@...il.com>
> Date:   Tue Feb 25 04:14:08 2020 +0000
> 
>     loop: charge i/o to mem and blk cg

That commit was dropped on March 3.