change coming with maverick's 2.6.34-5 kernels

Kees Cook kees at ubuntu.com
Fri Jun 11 20:03:41 BST 2010


Hi Evan,

On Fri, Jun 11, 2010 at 11:04:23AM -0700, Evan Martin wrote:
> I am no expert, but smarter people than me think suspect that this
> first change will break Breakpad, the crash-catching system used by
> Mozilla and Chromium:
>   http://code.google.com/p/google-breakpad/
> 
> Here's a bug for discussion:
>   http://code.google.com/p/chromium/issues/detail?id=46368

Right, if a system is left to the new default ptrace scope, it'll break a
lot of the crash-catchers if those catchers aren't a parent process.  This
is a problem for KDE too, actually.

That said, Ubuntu's standard crash-catcher is "apport", which works via the
kernel core dump routines, and is not affected by this change, since it
examines the core, not the live process.

-Kees

-- 
Kees Cook
Ubuntu Security Team



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