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Date: Mon, 15 Nov 2010 12:50:15 -0500 (EST)
From: Josh Bressers <>
Cc: "Steven M. Christey" <>
Subject: Re: CVE request: kernel: perf bug

----- "Eugene Teo" <> wrote:

> Upstream commit dab5855 ("perf_counter: Add mmap event hooks to 
> mprotect()") is fundamentally wrong as mprotect_fixup() can free 'vma'
> due to merging. Fix the problem by moving perf_event_mmap() hook to
> mprotect_fixup(). In certain scenario, a local, unprivileged user could
> use this flaw to trigger a denial of service.
> Upstream commit:
> PS: I thought I requested a CVE name for this already, but it turns out I
> did not.

Please use CVE-2010-4169.



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