Re: ifnet use after free

From: Matthew Macy <mmacy_at_freebsd.org>
Date: Fri, 24 Aug 2018 15:26:44 -0700
On Fri, Aug 24, 2018 at 15:25 Shawn Webb <shawn.webb_at_hardenedbsd.org> wrote:

> Hey All,
>
> Somewhere in the last month or so, a use after free was introduced. I
> don't have the time right now to bisect the commits and figure out
> which commit introduced the breakage. Attached is the core.txt (which
> seems nonsensical because the dump is reporting on a different
> thread). If the core.txt gets scrubbed, I've posted it here:
> https://gist.github.com/796ea88cec19a1fd2a85f4913482286a
>

Do you have any guidance on how to reproduce? The hardenedbsd rev isn’t
useful - the svn commit that it’s based against is what is needed.

Thanks.
-M



> I'm running HardenedBSD 12-CURRENT/amd64, commit 6091fec317a.
>
> FreeBSD hbsd-dev-laptop 12.0-ALPHA2 FreeBSD 12.0-ALPHA2 #4
> 6091fec317a(hardened/current/master)-dirty: Thu Aug 23 18:37:45 EDT
> 2018
> shawn_at_hbsd-dev-laptop:/usr/obj/usr/src/amd64.amd64/sys/LATT-SEC  amd64
>
> Thanks,
>
> --
> Shawn Webb
> Cofounder and Security Engineer
> HardenedBSD
>
> Tor-ified Signal:    +1 443-546-8752
> Tor+XMPP+OTR:        lattera_at_is.a.hacker.sx
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>
Received on Fri Aug 24 2018 - 20:26:56 UTC

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