Re: kern/52658: mmap() a file PaX MPROTECT can produce an unkillable process

[Utkarsh Anand <uanand009%gmail.com@localhost>]

The following reply was made to PR kern/52658; it has been noted by GNATS.

From: Utkarsh Anand <uanand009%gmail.com@localhost>
To: Kamil Rytarowski <n54%gmx.com@localhost>
Cc: gnats-bugs%netbsd.org@localhost, Dmitry Vyukov <dvyukov%google.com@localhost>
Subject: Re: kern/52658: mmap() a file PaX MPROTECT can produce an unkillable process
Date: Thu, 26 Oct 2017 23:23:53 +0530

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 Looks like we don't have qemu on lyta. I guess I'll do it later on my own
 machine.
 
 Regards,
 Utkarsh Anand
 
 On 26 October 2017 at 23:01, Utkarsh Anand <uanand009%gmail.com@localhost> wrote:
 
 > Currently, I'm reproducing something else on my machine. I'll probably do
 > this on lyta and report back if it fixes it.
 >
 > Regards,
 > Utkarsh Anand
 >
 > On 26 October 2017 at 22:51, Kamil Rytarowski <n54%gmx.com@localhost> wrote:
 >
 >> Proposed fix by Taylor:
 >>
 >> https://www.netbsd.org/~riastradh/tmp/20171026/mmap_pax_errbranch.patch
 >>
 >> Utkarsh, can you please have a look whether it fixes the problem?
 >>
 >> If so, please commit it with appropriate credit (Dmitry, syzkaller,
 >> Taylor).
 >>
 >> If it fixes the bug, please also add a new ATF test for this case.
 >>
 >>
 >
 
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 <div dir=3D"ltr"><div><div>Looks like we don&#39;t have qemu on lyta. I gue=
 ss I&#39;ll do it later on my own machine.<br><br></div>Regards,<br></div>U=
 tkarsh Anand<br></div><div class=3D"gmail_extra"><br><div class=3D"gmail_qu=
 ote">On 26 October 2017 at 23:01, Utkarsh Anand <span dir=3D"ltr">&lt;<a hr=
 ef=3D"mailto:uanand009%gmail.com@localhost"; target=3D"_blank">uanand009%gmail.com@localhost</a>=
 &gt;</span> wrote:<br><blockquote class=3D"gmail_quote" style=3D"margin:0 0=
  0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir=3D"ltr"><div>=
 <div>Currently, I&#39;m reproducing something else on my machine. I&#39;ll =
 probably do this on lyta and report back if it fixes it.<br><br></div>Regar=
 ds,<br></div>Utkarsh Anand<br></div><div class=3D"HOEnZb"><div class=3D"h5"=
 ><div class=3D"gmail_extra"><br><div class=3D"gmail_quote">On 26 October 20=
 17 at 22:51, Kamil Rytarowski <span dir=3D"ltr">&lt;<a href=3D"mailto:n54@g=
 mx.com" target=3D"_blank">n54%gmx.com@localhost</a>&gt;</span> wrote:<br><blockquote =
 class=3D"gmail_quote" style=3D"margin:0 0 0 .8ex;border-left:1px #ccc solid=
 ;padding-left:1ex">Proposed fix by Taylor:<br>
 <br>
 <a href=3D"https://www.netbsd.org/~riastradh/tmp/20171026/mmap_pax_errbranc=
 h.patch" rel=3D"noreferrer" target=3D"_blank">https://www.netbsd.org/~riast=
 r<wbr>adh/tmp/20171026/mmap_pax_<wbr>errbranch.patch</a><br>
 <br>
 Utkarsh, can you please have a look whether it fixes the problem?<br>
 <br>
 If so, please commit it with appropriate credit (Dmitry, syzkaller, Taylor)=
 .<br>
 <br>
 If it fixes the bug, please also add a new ATF test for this case.<br>
 <br>
 </blockquote></div><br></div>
 </div></div></blockquote></div><br></div>
 
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