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From: Dave Hansen <dave.hansen@linux.intel.com>
To: linux-kernel@vger.kernel.org
Cc: linux-mm@kvack.org, Dave Hansen <dave.hansen@linux.intel.com>,
linuxram@us.ibm.com, tglx@linutronix.de, dave.hansen@intel.com,
mpe@ellerman.id.au, mingo@kernel.org, akpm@linux-foundation.org,
shuah@kernel.org, shakeelb@google.com
Subject: [PATCH 0/9] [v2] x86, pkeys: two protection keys bug fixes
Date: Mon, 26 Mar 2018 10:27:21 -0700 [thread overview]
Message-ID: <20180326172721.D5B2CBB4@viggo.jf.intel.com> (raw)
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>
next reply other threads:[~2018-03-26 17:29 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-03-26 17:27 Dave Hansen [this message]
2018-03-26 17:27 ` [PATCH 1/9] x86, pkeys: do not special case protection key 0 Dave Hansen
2018-03-26 17:47 ` Shuah Khan
2018-03-26 17:53 ` Dave Hansen
2018-03-26 17:58 ` Shuah Khan
2018-03-26 17:27 ` [PATCH 2/9] x86, pkeys, selftests: save off 'prot' for allocations Dave Hansen
2018-03-26 17:27 ` [PATCH 3/9] x86, pkeys, selftests: add a test for pkey 0 Dave Hansen
2018-03-26 17:27 ` [PATCH 4/9] x86, pkeys: override pkey when moving away from PROT_EXEC Dave Hansen
2018-04-07 0:09 ` Ram Pai
2018-04-07 0:47 ` Dave Hansen
2018-04-07 1:09 ` Ram Pai
2018-04-26 17:57 ` Dave Hansen
2018-04-30 7:51 ` Ram Pai
2018-04-30 16:36 ` Dave Hansen
2018-04-25 22:10 ` Shakeel Butt
2018-04-26 8:55 ` Thomas Gleixner
2018-04-26 18:17 ` Dave Hansen
2018-03-26 17:27 ` [PATCH 5/9] x86, pkeys, selftests: fix pointer math Dave Hansen
2018-03-26 17:27 ` [PATCH 6/9] x86, pkeys, selftests: fix pkey exhaustion test off-by-one Dave Hansen
2018-03-26 17:27 ` [PATCH 7/9] x86, pkeys, selftests: factor out "instruction page" Dave Hansen
2018-03-26 17:27 ` [PATCH 8/9] x86, pkeys, selftests: add allow faults on unknown keys Dave Hansen
2018-03-26 17:27 ` [PATCH 9/9] x86, pkeys, selftests: add PROT_EXEC test Dave Hansen
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