Messages in this thread | | | Date | Tue, 11 Jul 2017 16:10:53 +0100 | From | Mark Rutland <> | Subject | Re: [PATCH 0/2] Fatal signal handing within uaccess faults |
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On Tue, Jul 11, 2017 at 08:04:50AM -0700, Andy Lutomirski wrote: > 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.
AFAICT, yes.
As mentioned later on in the message, I beleive it's been ok since commit:
26178ec11ef3c6c8 ("x86: mm: consolidate VM_FAULT_RETRY handling")
... and my test-case didn't trigger anything in local testing on my desktop.
Mark.
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