linux-kernel - [PATCH 0/4] Fix check address limit on user-mode

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Date:   Thu,  7 Sep 2017 08:30:43 -0700
From:   Kees Cook <keescook@...omium.org>
To:     Ingo Molnar <mingo@...nel.org>
Cc:     Kees Cook <keescook@...omium.org>,
        Thomas Garnier <thgarnie@...gle.com>,
        Thomas Gleixner <tglx@...utronix.de>,
        Russell King <linux@...linux.org.uk>,
        Catalin Marinas <catalin.marinas@....com>,
        Will Deacon <will.deacon@....com>,
        Andy Lutomirski <luto@...capital.net>,
        Will Drewry <wad@...omium.org>,
        Al Viro <viro@...iv.linux.org.uk>,
        Dave Martin <Dave.Martin@....com>,
        Pratyush Anand <panand@...hat.com>,
        Dave Hansen <dave.hansen@...el.com>,
        Arnd Bergmann <arnd@...db.de>,
        David Howells <dhowells@...hat.com>,
        Yonghong Song <yhs@...com>,
        linux-arm-kernel@...ts.infradead.org, linux-api@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: [PATCH 0/4] Fix check address limit on user-mode

Fixes from Thomas Garnier: the new address limit check was causing
hangs on ARM. This solves the problem and takes proactive steps on
ARM64. Additionally removes the unconditional BUG_ON() on check failures.

-Kees