lkml.org 
[lkml]   [2018]   [Mar]   [26]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Subject[PATCH 0/9] [v2] x86, pkeys: two protection keys bug fixes
From
Date
Changes from v1:
* Added Fixes: and cc'd stable. No code changes.

--

This fixes two bugs, and adds selftests to make sure they stay fixed:

1. pkey 0 was not usable via mprotect_pkey() because it had never
been explicitly allocated.
2. mprotect(PROT_EXEC) memory could sometimes be left with the
implicit exec-only protection key assigned.

I already posted #1 previously. I'm including them both here because
I don't think it's been picked up in case folks want to pull these
all in a single bundle.

Cc: Ram Pai <linuxram@us.ibm.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Dave Hansen <dave.hansen@intel.com>
Cc: Michael Ellermen <mpe@ellerman.id.au>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Andrew Morton <akpm@linux-foundation.org>p
Cc: Shuah Khan <shuah@kernel.org>
Cc: Shakeel Butt <shakeelb@google.com>

\
 
 \ /
  Last update: 2018-03-26 19:30    [W:0.096 / U:8.012 seconds]
©2003-2018 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site