Re: [PATCH] lib/vsprintf: make-printk-non-secret printks all addresses as unhashed

From: Timur Tabi
Date: Tue Feb 02 2021 - 17:28:59 EST


On 2/2/21 3:52 PM, Kees Cook wrote:
A large warning message is displayed if this option is enabled,
because unhashed addresses, while useful for debugging, exposes
kernel addresses which can be a security risk.

Linus has expressly said "no" to things like this in the past:
https://lore.kernel.org/lkml/CA+55aFwieC1-nAs+NFq9RTwaR8ef9hWa4MjNBWL41F-8wM49eA@xxxxxxxxxxxxxx/
Maybe I misunderstood, but I thought this is what Vlastimil, Petr, Sergey, John, and Steven asked for.