From: Ingo Molnar <mingo@kernel.org>
To: riel@redhat.com
Cc: linux-kernel@vger.kernel.org, akpm@linux-foundation.org,
will.deacon@arm.com, danielmicay@gmail.com,
benh@kernel.crashing.org, hughd@google.com,
Linus Torvalds <torvalds@linux-foundation.org>,
Michal Hocko <mhocko@suse.com>,
Dave Jones <davej@codemonkey.org.uk>,
Oleg Nesterov <oleg@redhat.com>
Subject: Re: [PATCH 0/3] properly account for stack randomization and guard gap
Date: Fri, 23 Jun 2017 10:35:21 +0200 [thread overview]
Message-ID: <20170623083521.f62me7efrm4ygawq@gmail.com> (raw)
In-Reply-To: <20170622200033.25714-1-riel@redhat.com>
* riel@redhat.com <riel@redhat.com> wrote:
> When RLIMIT_STACK is larger than the minimum gap enforced by
> mmap_base(), it is possible for the kernel to place the mmap
> area where the stack wants to grow, resulting in the stack
> not being able to use the space that should have been allocated
> to it through RLIMIT_STACK.
>
> This series ensures that x86, ARM64, and PPC have at least
> RLIMIT_STACK + stack randomization + the stack guard gap
> space available for the stack.
>
> s390 seems to be ok. I have not checked other architectures.
x86 patch LGTM:
Acked-by: Ingo Molnar <mingo@kernel.org>
... but I suspect this wants to go via -mm or Linus directly?
Thanks,
Ingo
next prev parent reply other threads:[~2017-06-23 8:35 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-06-22 20:00 [PATCH 0/3] properly account for stack randomization and guard gap riel
2017-06-22 20:00 ` [PATCH 1/3] x86/mmap: properly account for stack randomization in mmap_base riel
2017-06-22 20:00 ` [PATCH 2/3] arm64/mmap: " riel
2017-06-22 20:00 ` [PATCH 3/3] powerpc,mmap: " riel
2017-06-23 8:35 ` Ingo Molnar [this message]
2017-06-23 15:13 ` [PATCH 0/3] properly account for stack randomization and guard gap Rik van Riel
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20170623083521.f62me7efrm4ygawq@gmail.com \
--to=mingo@kernel.org \
--cc=akpm@linux-foundation.org \
--cc=benh@kernel.crashing.org \
--cc=danielmicay@gmail.com \
--cc=davej@codemonkey.org.uk \
--cc=hughd@google.com \
--cc=linux-kernel@vger.kernel.org \
--cc=mhocko@suse.com \
--cc=oleg@redhat.com \
--cc=riel@redhat.com \
--cc=torvalds@linux-foundation.org \
--cc=will.deacon@arm.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).