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Re: [PATCH 0/2] Fatal signal handing within uaccess faults

From Andy Lutomirski <luto@amacapital.net>
Newsgroups linux.kernel
Subject Re: [PATCH 0/2] Fatal signal handing within uaccess faults
Date 2017-07-11 17:10 +0200
Message-ID <u24Xx-3TD-45@gated-at.bofh.it> (permalink)
References <u24b8-3nP-23@gated-at.bofh.it>
Organization linux.* mail to news gateway

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On Tue, Jul 11, 2017 at 7:16 AM, Mark Rutland <mark.rutland@arm.com> wrote:
> Hi,
>
> Arch maintainer tl;dr: most arch fault code doesn't handle fatal signals
> correctly, allowing unprivileged users to create an unkillable task which can
> lock up the system. Please check whether your arch is affected.

I haven't tested for real, but brief inspection of the code suggests
that x86 is okay.

--Andy

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Thread

[PATCH 0/2] Fatal signal handing within uaccess faults Mark Rutland <mark.rutland@arm.com> - 2017-07-11 16:20 +0200
  [PATCH 1/2] arm64: mm: abort uaccess retries upon fatal signal Mark Rutland <mark.rutland@arm.com> - 2017-07-11 16:20 +0200
  Re: [PATCH 0/2] Fatal signal handing within uaccess faults Mark Rutland <mark.rutland@arm.com> - 2017-07-11 16:30 +0200
  Re: [PATCH 0/2] Fatal signal handing within uaccess faults Andy Lutomirski <luto@amacapital.net> - 2017-07-11 17:10 +0200
    Re: [PATCH 0/2] Fatal signal handing within uaccess faults Mark Rutland <mark.rutland@arm.com> - 2017-07-11 17:20 +0200

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