Messages in this thread | | | Date | Wed, 24 Oct 2012 14:02:27 -0700 | From | Andrew Morton <> | Subject | Re: [RESEND][PATCH] gen_init_cpio: avoid stack overflow when expanding |
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On Wed, 24 Oct 2012 13:57:56 -0700 Kees Cook <keescook@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: stable@vger.kernel.org
Why did you feel we need to backport this to -stable?
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