dev:md: A kernel address leakage in sys/dev/md/md.c

Oliver Pinter oliver.pinter at hardenedbsd.org
Mon Jun 17 20:12:44 UTC 2019


On Monday, June 17, 2019, Poul-Henning Kamp <phk at phk.freebsd.dk> wrote:

> --------
> In message <CANCZdfrK2V9AEzeib8GV=
> 26YUVV8qFweRbvmbCe+EZQBaz2hJQ at mail.gmail.com>
> , Warner Losh writes:
>
> >If we are serious about this, [...]
>
> then sysctl kern.geom "leaks" a lot of pointers...


Or just run sysctl -a ¦ grep -i 0xff on a  fully configured system.


>
> --
> Poul-Henning Kamp       | UNIX since Zilog Zeus 3.20
> phk at FreeBSD.ORG         | TCP/IP since RFC 956
> FreeBSD committer       | BSD since 4.3-tahoe
> Never attribute to malice what can adequately be explained by incompetence.
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