Bug #73114 [Asn]: php segfault probably because OpenBSD wx implementation
| From: | cmb@php.net | Date: | Fri, 11 Nov 2016 18:11:50 +0000 |
| Subject: | Bug #73114 [Asn]: php segfault probably because OpenBSD wx implementation | ||
| References: | 1 | Groups: | php.bugs |
| Request: | Send a blank email to php-bugs+get-205312@lists.php.net to get a copy of this message | ||
Edit report at https://bugs.php.net/bug.php?id=73114&edit=1
ID: 73114
Updated by: cmb@php.net
Reported by: martin dot larsson2 at gmail dot com
-Summary: php segfault probably becouse OpenBSD wx
implementation
+Summary: php segfault probably because OpenBSD wx
implementation
Status: Assigned
Type: Bug
Package: PCRE related
Operating System: OpenBSD
PHP Version: 7.0.11
Assigned To: cmb
Block user comment: N
Private report: N
New Comment:
Thanks! I've found an article[1] which includes the commit message
regarding the W^X violation protection. It seems to me that for now you
have to use the "wxallowed" mount option. Alternatively, building PHP
without PCRE JIT support (--without-pcre-jit) should also work (assuming
that this is indeed the only part that uses W|X mmap).
[1] <http://undeadly.org/cgi?action=article&sid=20160527203200>
Previous Comments:
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[2016-11-11 17:39:22] martin dot larsson2 at gmail dot com
same error with CFLAGS="-fpie -pie" ./configure
here is paste http://pastebin.ca/3738078
------------------------------------------------------------------------
[2016-11-11 16:40:00] cmb@php.net
Ah, I see, thanks! Please try to build with:
CFLAGS="-fpie -pie" ./configure â¦
Cf. <https://www.openbsd.org/papers/asiabsdcon2015-pie-slides.pdf>.
------------------------------------------------------------------------
[2016-11-11 14:05:11] martin dot larsson2 at gmail dot com
php doesnt compile for me at all, I use the package.
I get wx violation just trying to compile it, and that netbsd patch use some paxctl which openbsd
doesnt have.
------------------------------------------------------------------------
[2016-11-09 20:13:38] cmb@php.net
> Thought https://bugs.php.net/bug.php?id=72281 was a compilation
> error?
No. Actually it appears to be the very same issue:
* this ticket: mmap W^X violation
* the other ticket: it does not allow mapping pages both writable and
executable
Martin, could you please check whether the patch attached to the other
ticket would solve the issue for you?
------------------------------------------------------------------------
[2016-11-09 20:00:40] martin dot larsson2 at gmail dot com
ehm, I don't know sorry. Thought https://bugs.php.net/bug.php?id=72281 was a
compilation error?
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