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Re: [kernel-hardening] [PATCH v2 0/5] stackprotector: ascii armor the stack canary

From Yann Droneaud <ydroneaud@opteya.com>
Newsgroups linux.kernel
Subject Re: [kernel-hardening] [PATCH v2 0/5] stackprotector: ascii armor the stack canary
Date 2017-09-20 13:50 +0200
Message-ID <urLFT-2u1-7@gated-at.bofh.it> (permalink)
References <tKGRz-4dh-7@gated-at.bofh.it> <urulI-8fP-9@gated-at.bofh.it>
Organization OPTEYA

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Hi,

Le mardi 19 septembre 2017 à 19:16 +0200, Solar Designer a écrit :
>
> We could put/require a NUL in the middle of the canary,
> but with the full canary being only 64-bit at most that would also
> make some attacks easier.
> 

Are you suggesting to randomly select which byte to set to 0 in each
canary ?

Regards.

-- 
Yann Droneaud
OPTEYA

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Thread

Re: [kernel-hardening] [PATCH v2 0/5] stackprotector: ascii armor the stack canary Solar Designer <solar@openwall.com> - 2017-09-19 19:20 +0200
  Re: [kernel-hardening] [PATCH v2 0/5] stackprotector: ascii armor the  stack canary Kees Cook <keescook@chromium.org> - 2017-09-19 22:30 +0200
  Re: [kernel-hardening] [PATCH v2 0/5] stackprotector: ascii armor  the stack canary Daniel Micay <danielmicay@gmail.com> - 2017-09-19 23:20 +0200
  Re: [kernel-hardening] [PATCH v2 0/5] stackprotector: ascii armor  the stack canary Yann Droneaud <ydroneaud@opteya.com> - 2017-09-20 13:50 +0200
    Re: [kernel-hardening] [PATCH v2 0/5] stackprotector: ascii armor the stack canary Solar Designer <solar@openwall.com> - 2017-09-20 17:10 +0200

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