change coming with maverick's 2.6.34-5 kernels

Kees Cook kees at
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:
> Here's a bug for discussion:

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 Cook
Ubuntu Security Team

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