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Date: Thu, 12 May 2016 11:27:49 -0400 (EDT)
From: cve-assign@...re.org
To: marco.gra@...il.com
Cc: cve-assign@...re.org, oss-security@...ts.openwall.com
Subject: Re: Linux Kernel bpf related UAF

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Hash: SHA256

> the following reproducer will cause a UAF of a previously allocated memory
> in bpf.
> 
> You can reproduce with linux kernel master, or 4.6-rc6 4.6-rc7 and maybe
> other kernel versions.

> int main(int argc, char **argv)
> ...
> r[0] = syscall(SYS_mmap, ...
> ...
> r[5] = syscall(SYS_bpf, ...

Use CVE-2016-4794. (We did not run any tests, or look for other
information, to investigate whether the same reproducer or a similar
reproducer affects any kernel version that's considered stable or
longterm.)

- -- 
CVE Assignment Team
M/S M300, 202 Burlington Road, Bedford, MA 01730 USA
[ A PGP key is available for encrypted communications at
  http://cve.mitre.org/cve/request_id.html ]
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