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From: Ben Hutchings <ben@decadent.org.uk>
To: Willy Tarreau <w@1wt.eu>, Levente Polyak <anthraxx@archlinux.org>
Cc: Hugh Dickins <hughd@google.com>,
	Linus Torvalds <torvalds@linux-foundation.org>,
	Oleg Nesterov <oleg@redhat.com>, Michal Hocko <mhocko@kernel.org>,
	"Jason A. Donenfeld" <Jason@zx2c4.com>,
	Rik van Riel <riel@redhat.com>,
	Larry Woodman <lwoodman@redhat.com>,
	"Kirill A. Shutemov" <kirill@shutemov.name>,
	Tony Luck <tony.luck@intel.com>,
	"James E.J. Bottomley" <jejb@parisc-linux.org>,
	Helge Diller <deller@gmx.de>,
	James Hogan <james.hogan@imgtec.com>,
	Laura Abbott <labbott@redhat.com>, Greg KH <greg@kroah.com>,
	security@kernel.org, linux-distros@vs.openwall.org,
	qsa@qualys.com, stable <stable@vger.kernel.org>,
	LKML <linux-kernel@vger.kernel.org>
Subject: Re: [vs-plain] Re: [PATCH] mm: larger stack guard gap, between vmas
Date: Thu, 22 Jun 2017 15:14:00 +0100	[thread overview]
Message-ID: <1498140840.2655.28.camel@decadent.org.uk> (raw)
In-Reply-To: <20170622135927.GA22684@1wt.eu>

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On Thu, 2017-06-22 at 15:59 +0200, Willy Tarreau wrote:
> Hi,
> 
> On Thu, Jun 22, 2017 at 03:15:51PM +0200, Levente Polyak wrote:
> > Just a side note, but i think its worth mentioning to also have
> > look at
> > these fixup patches:
> > 
> > 
> > -- mm: fix new crash in unmapped_area_topdown()
> > https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/
> > commit/?id=f4cb767d76cf7ee72f97dd76f6cfa6c76a5edc89
> 
> As I mentionned in another mail (this thread starts to be huge), this
> one seems to have already been included in Ben's backport.

That code was completely replaced due to the lack of an rbtree for gaps
in 3.2, so the fix was not needed.

> > -- Allow stack to grow up to address space limit
> > https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/
> > commit/?id=bd726c90b6b8ce87602208701b208a208e6d5600
> 
> This one cleanly applies after, but I think Ben is currently looking
> for feedback on the validity of his backport which was a difficult
> task.

Right.

Ben.

-- 
Ben Hutchings
Sturgeon's Law: Ninety percent of everything is crap.


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  reply	other threads:[~2017-06-22 14:15 UTC|newest]

Thread overview: 94+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <alpine.LSU.2.11.1706190355140.2626@eggly.anvils>
2017-06-22 12:30 ` [PATCH] mm: larger stack guard gap, between vmas Ben Hutchings
2017-06-22 12:46   ` Willy Tarreau
2017-06-22 12:58     ` Ben Hutchings
2017-06-22 13:10       ` Willy Tarreau
2017-06-22 13:10         ` Willy Tarreau
2017-06-22 13:28         ` Willy Tarreau
2017-06-22 13:28           ` Willy Tarreau
2017-06-22 13:15       ` [vs-plain] " Levente Polyak
2017-06-22 13:59         ` Willy Tarreau
2017-06-22 14:14           ` Ben Hutchings [this message]
2017-06-22 14:34             ` Willy Tarreau
2017-06-23  3:10               ` Andy Lutomirski
2017-06-23  4:42                 ` Linus Torvalds
2017-06-22 21:23             ` Helge Deller
2017-06-23  4:35   ` Hugh Dickins
2017-06-24  9:11     ` Hugh Dickins
2017-06-24 18:29       ` Ben Hutchings
     [not found] ` <CA+55aFx6j4na3BVRC2aQuf-kNp1jzGahN8To_SFpNu+H=gopJA@mail.gmail.com>
     [not found]   ` <20170619142358.GA32654@1wt.eu>
     [not found]     ` <1498009101.2655.6.camel@decadent.org.uk>
     [not found]       ` <20170621092419.GA22051@dhcp22.suse.cz>
     [not found]         ` <1498042057.2655.8.camel@decadent.org.uk>
2017-07-03 23:55           ` Ben Hutchings
2017-07-04  0:05             ` Linus Torvalds
2017-07-04  8:41               ` Michal Hocko
2017-07-04  9:35                 ` Michal Hocko
2017-07-04  9:47                   ` Willy Tarreau
2017-07-04 10:42                     ` Michal Hocko
2017-07-04 11:36                       ` Ben Hutchings
2017-07-04 12:00                         ` Michal Hocko
2017-07-04 12:11                           ` Michal Hocko
2017-07-04 12:21                           ` Ben Hutchings
2017-07-04 12:33                             ` Michal Hocko
2017-07-04 14:19                               ` Ximin Luo
2017-07-04 14:48                                 ` Michal Hocko
2017-07-04 15:51                         ` Willy Tarreau
2017-07-04 17:22                           ` Michal Hocko
2017-07-04 18:37                             ` Linus Torvalds
2017-07-04 18:39                               ` Willy Tarreau
2017-07-04 18:47                                 ` Linus Torvalds
2017-07-04 19:03                                   ` Willy Tarreau
2017-07-04 16:18                         ` Linus Torvalds
2017-07-04 16:27                           ` John Haxby
2017-07-04 17:02                             ` Willy Tarreau
2017-07-05 12:26                           ` Ben Hutchings
2017-07-04 17:11                         ` Willy Tarreau
2017-07-05 12:25                           ` Ben Hutchings
2017-07-04 23:01                         ` Ben Hutchings
2017-07-04 23:31                           ` Linus Torvalds
2017-07-05  6:36                             ` Michal Hocko
2017-07-05  8:14                               ` Willy Tarreau
2017-07-05  8:24                                 ` Michal Hocko
2017-07-05  9:15                                   ` Willy Tarreau
2017-07-05 12:21                                 ` Ben Hutchings
2017-07-05 13:52                                   ` Willy Tarreau
2017-07-05 14:19                                   ` Michal Hocko
2017-07-05 16:06                                   ` Linus Torvalds
2017-07-06  7:34                               ` Michal Hocko
2017-07-05 12:19                             ` Ben Hutchings
2017-07-05 14:23                               ` Michal Hocko
2017-07-05 15:25                                 ` Ben Hutchings
2017-07-05 15:59                                   ` Michal Hocko
2017-07-05 16:58                                   ` Ben Hutchings
2017-07-05 17:05                                     ` Michal Hocko
2017-07-05 17:24                                       ` Ben Hutchings
2017-07-05 17:15                                     ` Linus Torvalds
2017-07-05 23:35                                       ` Ben Hutchings
2017-07-05 23:51                                         ` Linus Torvalds
2017-07-06  8:24                                           ` Willy Tarreau
2017-07-06 10:11                                             ` Willy Tarreau
2017-07-10  2:40                                     ` [lkp-robot] [mm] a99d848d3b: kernel_BUG_at_mm/mmap.c kernel test robot
2017-07-10  2:40                                       ` kernel test robot
2017-07-05 16:15                                 ` [PATCH] mm: larger stack guard gap, between vmas Andy Lutomirski
2017-07-05 16:20                                   ` Linus Torvalds
2017-07-05 17:23                                     ` Andy Lutomirski
2017-07-05 19:32                                       ` Ben Hutchings
2017-07-05 20:40                                         ` Willy Tarreau
2017-07-05 20:53                                         ` Andy Lutomirski
2017-07-05 23:50                                           ` Ben Hutchings
2017-07-06  0:23                                             ` Andy Lutomirski
2017-07-05 23:50                                       ` Kees Cook
2017-07-05 23:55                                         ` Linus Torvalds
2017-07-06  0:31                                           ` Andy Lutomirski
2017-07-06  0:47                                             ` Linus Torvalds
2017-07-06  0:19                                         ` Andy Lutomirski
2017-07-06  2:45                                           ` Kees Cook
2017-07-06  5:23                                           ` Willy Tarreau
2017-07-06  5:33                                 ` Kevin Easton
2017-07-05 16:17                               ` Linus Torvalds
2017-07-05 18:59                                 ` Willy Tarreau
2017-07-05 19:17                                   ` Linus Torvalds
2017-07-05 19:18                                     ` Willy Tarreau
2017-07-05 19:21                                       ` Linus Torvalds
2017-07-05  1:16                           ` [vs-plain] " kseifried
2017-07-05 14:11                             ` Solar Designer
2017-07-04 10:46                   ` Michal Hocko
2017-07-04 10:51                     ` Michal Hocko
2017-07-04  0:27             ` Andy Lutomirski
2017-07-04 12:26             ` [vs-plain] " John Haxby

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