2016-03-10 18:36:27

by Dmitry Vyukov

[permalink] [raw]
Subject: Re: net: use-after-free in recvmmsg

On Tue, Jan 26, 2016 at 8:30 PM, Arnaldo Carvalho de Melo
<[email protected]> wrote:
> Em Tue, Jan 26, 2016 at 08:27:48PM +0100, Dmitry Vyukov escreveu:
>> On Fri, Jan 22, 2016 at 10:16 PM, Arnaldo Carvalho de Melo <[email protected]> wrote:
>> > Em Fri, Jan 22, 2016 at 09:39:53PM +0100, Dmitry Vyukov escreveu:
>> >> I am on commit 30f05309bde49295e02e45c7e615f73aa4e0ccc2 (Jan 20).
>> >> Seems to be added in commit a2e2725541fad72416326798c2d7fa4dafb7d337
>> >> (Oct 2009).
>> >
>> > Maybe this helps? Compile testing now...
>>
>>
>> I don't have a reliable reproducer, so can't test it per se.
>> I will integrate this patch tomorrow and restart fuzzer with it.
>
> Thanks a lot!


Hi Arnaldo,

I am running with that patch since then, and did not see the bug.
Please mail it as a proper patch.


2016-03-10 19:31:18

by Arnaldo Carvalho de Melo

[permalink] [raw]
Subject: Re: net: use-after-free in recvmmsg

Em Thu, Mar 10, 2016 at 07:35:57PM +0100, Dmitry Vyukov escreveu:
> On Tue, Jan 26, 2016 at 8:30 PM, Arnaldo Carvalho de Melo
> <[email protected]> wrote:
> > Em Tue, Jan 26, 2016 at 08:27:48PM +0100, Dmitry Vyukov escreveu:
> >> On Fri, Jan 22, 2016 at 10:16 PM, Arnaldo Carvalho de Melo <[email protected]> wrote:
> >> > Em Fri, Jan 22, 2016 at 09:39:53PM +0100, Dmitry Vyukov escreveu:
> >> >> I am on commit 30f05309bde49295e02e45c7e615f73aa4e0ccc2 (Jan 20).
> >> >> Seems to be added in commit a2e2725541fad72416326798c2d7fa4dafb7d337
> >> >> (Oct 2009).
> >> >
> >> > Maybe this helps? Compile testing now...
> >>
> >>
> >> I don't have a reliable reproducer, so can't test it per se.
> >> I will integrate this patch tomorrow and restart fuzzer with it.
> >
> > Thanks a lot!
>
> Hi Arnaldo,
>
> I am running with that patch since then, and did not see the bug.
> Please mail it as a proper patch.

Thanks, and I'll add a:

Reported-and-Tested-by: Dmitry Vyukov <[email protected]>

Ok?

- Arnaldo

2016-03-11 16:42:41

by Dmitry Vyukov

[permalink] [raw]
Subject: Re: net: use-after-free in recvmmsg

On Thu, Mar 10, 2016 at 8:31 PM, Arnaldo Carvalho de Melo
<[email protected]> wrote:
> Em Thu, Mar 10, 2016 at 07:35:57PM +0100, Dmitry Vyukov escreveu:
>> On Tue, Jan 26, 2016 at 8:30 PM, Arnaldo Carvalho de Melo
>> <[email protected]> wrote:
>> > Em Tue, Jan 26, 2016 at 08:27:48PM +0100, Dmitry Vyukov escreveu:
>> >> On Fri, Jan 22, 2016 at 10:16 PM, Arnaldo Carvalho de Melo <[email protected]> wrote:
>> >> > Em Fri, Jan 22, 2016 at 09:39:53PM +0100, Dmitry Vyukov escreveu:
>> >> >> I am on commit 30f05309bde49295e02e45c7e615f73aa4e0ccc2 (Jan 20).
>> >> >> Seems to be added in commit a2e2725541fad72416326798c2d7fa4dafb7d337
>> >> >> (Oct 2009).
>> >> >
>> >> > Maybe this helps? Compile testing now...
>> >>
>> >>
>> >> I don't have a reliable reproducer, so can't test it per se.
>> >> I will integrate this patch tomorrow and restart fuzzer with it.
>> >
>> > Thanks a lot!
>>
>> Hi Arnaldo,
>>
>> I am running with that patch since then, and did not see the bug.
>> Please mail it as a proper patch.
>
> Thanks, and I'll add a:
>
> Reported-and-Tested-by: Dmitry Vyukov <[email protected]>
>
> Ok?

Ok

Reported-and-Tested-by: Dmitry Vyukov <[email protected]>