Re: KASAN: use-after-free Read in rds_find_bound

[Santosh Shilimkar]

On 2/14/2018 9:52 AM, Dmitry Vyukov wrote:
> On Wed, Feb 14, 2018 at 6:35 PM, Santosh Shilimkar
> <santosh.shilimkar@xxxxxxxxxx> wrote:
> > > > > Hi Santosh,
> > > > >
> > > > > What is that fix? You forgot to provide any link/reference. I also
> > > > > don't see any patches from you at around that date...
> > > > Fix [1] was later not added since there was a still a race. Wanted to
> > > > see if the issue re-appears after recent netns fix [2].
> > >
> > >
> > >
> > > We will not see if the bug re-appears or not until this bug is closed.
> > > Please see this recent discussion about another rds bug:
> > > https://groups.google.com/d/msg/syzkaller-bugs/3XjmOzr5jRU/g7pXIsY1BgAJ
> > > In the current state syzbot will never report bugs in these functions
> > > again.
> > OK. Can you close that one then in that case ?
>
> Anybody can do this:
I see.

> #syz fix: rds: tcp: use rds_destroy_pending() to synchronize
> netns/module teardown and rds connection/workq management
>
> syzbot provides full self-service, see first email and in particular this:
> https://github.com/google/syzkaller/blob/master/docs/syzbot.md#communication-with-syzbot
ok will have a look.

Regards,
Santosh