linux-kernel - Re: KASAN: slab-out-of-bounds Write in process

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: <20180823210315.2449cf3e@vmware.local.home>
Date:   Thu, 23 Aug 2018 21:03:15 -0400
From:   Steven Rostedt <rostedt@...dmis.org>
To:     Dmitry Vyukov <dvyukov@...gle.com>
Cc:     syzbot <syzbot+5702a7e6d4a13b3accd5@...kaller.appspotmail.com>,
        LKML <linux-kernel@...r.kernel.org>,
        Ingo Molnar <mingo@...hat.com>,
        syzkaller-bugs <syzkaller-bugs@...glegroups.com>,
        Al Viro <viro@...iv.linux.org.uk>
Subject: Re: KASAN: slab-out-of-bounds Write in process_preds

On Thu, 23 Aug 2018 07:13:13 -0700
Dmitry Vyukov <dvyukov@...gle.com> wrote:

> On Thu, May 10, 2018 at 7:23 AM, Steven Rostedt <rostedt@...dmis.org> wrote:
> > On Thu, 10 May 2018 07:14:26 +0200
> > Dmitry Vyukov <dvyukov@...gle.com> wrote:
> >  
> >> > IMPORTANT: if you fix the bug, please add the following tag to the commit:
> >> > Reported-by: syzbot+5702a7e6d4a13b3accd5@...kaller.appspotmail.com
> >> > It will help syzbot understand when the bug is fixed. See footer for
> >> > details.
> >> > If you forward the report, please keep this part and the footer.  
> >>
> >>
> >> This was bisected to:
> >>
> >> commit 80765597bc587feae8dbc8ce97a0f32e12a6e625
> >> Author: Steven Rostedt (VMware) <rostedt@...dmis.org>
> >> Date:   Fri Mar 9 13:19:28 2018 -0500
> >>
> >>     tracing: Rewrite filter logic to be simpler and faster  
> >
> > I could have told you that without the bisect ;-)
> >
> > I'll try to get some time to look into this.  
> 
> 
> It seems this was lost on kernel mailing lists, then re-reported after 2 months:
> https://bugzilla.kernel.org/show_bug.cgi?id=200019
> and then fixed.

Yeah, that time was quite busy for me. I guess I failed to get time to
look into it when it was first reported :-(

> 
> Since the fixing commit does not contain syzbot tag, need to tell it
> about the fix manually:
> 
> #syz fix: tracing: Check for no filter when processing event filters

Sorry about that. Thanks,

-- Steve