linux-kernel - Re: Mounting corrupted HFS+ causes kernel NULL pointer dereference

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: <CAE5jQCfP1ZteOhBD3-inASWtp1i-0NuFhZCSKyEy=wx+eQ=bbw@mail.gmail.com>
Date:   Mon, 2 Jul 2018 10:41:27 +0300
From:   Anatoly Trosinenko <anatoly.trosinenko@...il.com>
To:     "Ernesto A. Fernandez" <ernesto.mnd.fernandez@...il.com>
Cc:     pavel@....cz, linux-kernel@...r.kernel.org,
        linux-fsdevel@...r.kernel.org,
        Tetsuo Handa <penguin-kernel@...ove.sakura.ne.jp>
Subject: Re: Mounting corrupted HFS+ causes kernel NULL pointer dereference

Thank you, now (with just this patch applied on top of v4.18-rc2) it
just (asynchronously?) writes `hfsplus: b-tree write err: -5, ino: 3`
to dmesg and does not segfaults.
пт, 29 июн. 2018 г. в 21:45, Ernesto A. Fernández
<ernesto.mnd.fernandez@...il.com>:
>
> Hi again:
>
> A patch for your original report has already been added to the -mm tree.
>
> On Tue, Jun 12, 2018 at 09:43:26PM +0300, Anatoly Trosinenko wrote:
> > Now, when mounting the attached hfsplus_16mb_segv to /mnt and
> > performing `dd if=/dev/zero of=/mnt/xyz bs=567879 count=1` I get
> >
> > [    1.646451] BUG: unable to handle kernel NULL pointer dereference
> > at 0000000000000043
>
> I just sent you a patch for this second report. It's really simple, so
> it would be great if you could take a look at it and review it yourself.
> Otherwise it's not very likely to get picked up.
>
> Thanks,
> Ernest



-- 
С уважением,
Анатолий Тросиненко
e-mail: anatoly.trosinenko@...il.com