From: Michael Ellerman <mpe@ellerman•id.au>
To: Ram Pai <linuxram@us•ibm.com>
Cc: linuxppc-dev@lists•ozlabs.org, dave.hansen@intel•com,
aneesh.kumar@linux•vnet.ibm.com, bsingharora@gmail•com,
hbabu@us•ibm.com, mhocko@kernel•org, bauerman@linux•vnet.ibm.com,
linuxram@us•ibm.com, Ulrich.Weigand@de•ibm.com,
fweimer@redhat•com, luto@kernel•org, msuchanek@suse•de
Subject: Re: [PATCH v2 6/6] powerpc/pkeys: Deny read/write/execute by default
Date: Tue, 19 Jun 2018 22:39:59 +1000 [thread overview]
Message-ID: <87602fx84g.fsf@concordia.ellerman.id.au> (raw)
In-Reply-To: <1528936144-6696-7-git-send-email-linuxram@us.ibm.com>
Ram Pai <linuxram@us•ibm.com> writes:
> Deny all permissions on all keys, with some exceptions. pkey-0 must
> allow all permissions, or else everything comes to a screaching halt.
> Execute-only key must allow execute permission.
Another ABI change.
Are we calling this a bug fix?
cheers
next prev parent reply other threads:[~2018-06-19 12:40 UTC|newest]
Thread overview: 32+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-06-14 0:28 [PATCH v2 0/6] powerpc/pkeys: fixes to pkeys Ram Pai
2018-06-14 0:28 ` [PATCH v2 1/6] powerpc/pkeys: Enable all user-allocatable pkeys at init Ram Pai
2018-06-19 12:39 ` Michael Ellerman
2018-06-19 14:25 ` Ram Pai
2018-06-21 4:14 ` Michael Ellerman
2018-06-21 17:24 ` Ram Pai
2018-06-14 0:29 ` [PATCH v2 2/6] powerpc/pkeys: Save the pkey registers before fork Ram Pai
2018-06-19 12:39 ` Michael Ellerman
2018-06-19 14:28 ` Ram Pai
2018-06-21 4:13 ` Michael Ellerman
2018-06-21 17:35 ` Ram Pai
2018-06-14 0:29 ` [PATCH v2 3/6] powerpc/pkeys: fix calculation of total pkeys Ram Pai
2018-06-19 12:40 ` Michael Ellerman
2018-06-14 0:29 ` [PATCH v2 4/6] powerpc/pkeys: Preallocate execute-only key Ram Pai
2018-06-19 12:40 ` Michael Ellerman
2018-06-19 16:38 ` Ram Pai
2018-06-21 0:28 ` Michael Ellerman
2018-06-29 3:02 ` Thiago Jung Bauermann
2018-06-14 0:29 ` [PATCH v2 5/6] powerpc/pkeys: make protection key 0 less special Ram Pai
2018-06-19 12:40 ` Michael Ellerman
2018-06-19 16:34 ` Ram Pai
2018-06-14 0:29 ` [PATCH v2 6/6] powerpc/pkeys: Deny read/write/execute by default Ram Pai
2018-06-19 12:39 ` Michael Ellerman [this message]
2018-06-19 13:19 ` Florian Weimer
2018-06-19 16:31 ` Ram Pai
2018-06-14 12:15 ` [PATCH v2 0/6] powerpc/pkeys: fixes to pkeys Florian Weimer
2018-06-19 12:40 ` Michael Ellerman
2018-06-20 15:08 ` Florian Weimer
2018-06-21 10:28 ` Michael Ellerman
2018-06-21 18:10 ` Ram Pai
2018-06-23 15:02 ` Michael Ellerman
2018-06-25 17:06 ` Ram Pai
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