Re: [PATCH v4] gcc-plugins: latent_entropy: use /dev/urandom

[Kees Cook]

On Wed, 6 Apr 2022 00:28:15 +0200, Jason A. Donenfeld wrote:
> While the latent entropy plugin mostly doesn't derive entropy from
> get_random_const() for measuring the call graph, when __latent_entropy is
> applied to a constant, then it's initialized statically to output from
> get_random_const(). In that case, this data is derived from a 64-bit
> seed, which means a buffer of 512 bits doesn't really have that amount
> of compile-time entropy.
> 
> [...]

Applied to for-v5.18/hardening, thanks!

I dropped the version number change, added a pointer to the GCC bug
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=105171, and noted the
rationale for the buffer size. I'll get this sent to Linus shortly.

[1/1] gcc-plugins: latent_entropy: use /dev/urandom
      https://git.kernel.org/kees/c/c40160f2998c

-- 
Kees Cook