On Wed, 24 Oct 2012 13:57:56 -0700
Kees Cook <keesc...@chromium.org> wrote:
> Fix possible overflow of the buffer used for expanding environment
> variables when building file list.
>
> $ cat usr/crash.list
> file foo ${BIG}${BIG}${BIG}${BIG}${BIG}${BIG} 0755 0 0
> $ BIG=$(perl -e 'print "A" x 4096;') ./usr/gen_init_cpio usr/crash.list
> *** buffer overflow detected ***: ./usr/gen_init_cpio terminated
>
> This also replaces the space-indenting with tabs.
>
> Patch based on existing fix extracted from grsecurity.
>
> ...
>
> Cc: sta...@vger.kernel.org
Why did you feel we need to backport this to -stable?
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